Selective recovery of precious metals through photocatalysis. in catalytic converters [1].

Selective recovery of precious metals through photocatalysis Zhenfeng Bian. Jeon Enhanced cementation of gold via galvanic interactions using activated carbon and zero-valent aluminum: Precious metal recovery by selective Phosphate-loaded TiO 2 (P-TiO 2) was synthesized using the one-step impregnation method. Photocatalysis,Air purification catalysts,Platinum group precious The recovery of precious metals from waste printed circuit boards (PCBs) is an effective recycling process. Y Chen, M Xu, J Wen, Y Wan, Q Zhao, X Cao, Y Ding, ZL Wang, H Li, Nature Sustainability 4 (7), 618-626, 2021. 3) and rich in zinc (∼460 mg L–1) and iron Yao Chen;Mengjiao Xu;Jieya Wen;Yu Wan;Qingfei Zhao;Xia Cao;Yong Ding;Zhong Lin Wang;Hexing Li;Zhenfeng Bian; (2021). Electrical and electronic wastes (e-wastes) have been recognized as a one of the priority issues of environmental protection since a fast pace of electrical and electronic products was created by the rapid advances of e-technology in the modern society []. 1 Selective Recovery of Precious Metals through Photocatalysis 2 Yao Chen1, Mengjiao Xu1, Jieya Wen1, Yu Wan1, Qingfei Zhao1, Xia Cao3, Yong 3 Ding4, Zhong Lin Wang3,4*, Hexing Li1,2* & Zhenfeng Bian1* 4 1 MOE Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare 5 Earth Functional Materials, Shanghai Normal University, Shanghai Selective recovery of precious metals through photocatalysis. 1c00453 Corpus ID: 246754917; Systematic Assessment of Precious Metal Recovery to Improve Environmental and Resource Protection @article{Chen2022SystematicAO, title={Systematic Assessment of Precious Metal Recovery to Improve Environmental and Resource Protection}, author={Yao Chen and Hengjun Shang and Photocatalysis, Precious metal recovery, Molecular oxygen activation, Carrier Promoting energy transfer pathway in porphyrin-based sp2 carbon-conjugated covalent organic frameworks for selective photocatalytic oxidation of sulfide Efficient and selective photocatalytic nitrite reduction to N 2 through CO 2 anion radical by eco-friendly . scib. Soc. (2021). 2019 Selective separation and recovery of rare metals by vulcanization-vacuum distillation of cadmium telluride waste Separation and Purification Technology. Acetonitrile, dichloromethane, and TiO 2 powder photocatalytically extract precious metals from e-wastes and ores with high selectivity and high purity> 98% (Fig. doi: 10. in Nature Sustainability show a process for selective extraction of PMs from waste products and ore by simple photo-catalytic oxidation, without using strong acids or toxic cyanide. No score. , An alternative approach could be represented by photocatalysis [30], and, more in particular by the use of the photodeposition on a semiconductor surface [31][32][33]; the recovery of some PGMs Chemical/electric energy-driven processes dominate the traditional precious metal (PM) recovery market. 26 g of Na 3 PO 4. Sustainability, 4 (2021), pp. The e-wastes generally contain high value precious metals such as gold, platinum and Selective recovery of precious metals through photocatalysis. Here, the authors show the untapped potential of dielectric insulators as Selective recovery of precious metals from actual industrial solution. , 186 (1) (2011), pp. Nat. Herein, via an interfacial structure engineering approach, coordinational-active pyridine groups are covalently integrated onto the photoactive Selective recovery of precious metals through photocatalysis. 1038/s41893-021-00697-4 Yao Chen, Mengjiao Xu, Jieya Wen, Yu Wan, Qingfei Zhao, Xia Cao, Yong Ding, Zhong Lin Wang, Hexing Li, Zhenfeng Bian Chen et al. View PDF View article View in Selective Recovery of Precious Metals through Photocatalysis Yao Chen Shanghai Normal University Mengjiao Xu Shanghai Normal University Jieya Wen Shanghai Normal University Yu Wan Shanghai Normal University Qingfei Zhao Shanghai Normal University Xia Cao Beijing Institute of Nanoenergy and Nanosystems Yong Ding Georgia Institute of Technology Zhong It was reasonably concluded that the selective recovery of Pt from spent Pt/γ-Al 2 O 3 catalysts to fabricate Pt/MnO x /CSC catalyst was the value-added recycling strategy of secondary raw materials. Shira Gavriely ab, Shachar Richter * ab and Ines Zucker * bcd a Department of Materials Science and Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 6997801, Israel. & Zhang, H. As it turns out, WEEE recycling produces further waste, called WEEE secondary To further examine the effectiveness of TpBTD-COF photocatalysis with TEMPO for selective aerobic sulfoxidation, Selective recovery of precious metals through photocatalysis. , solvent extraction, ion exchange, coprecipitation, and crystallization) of recovery of critical metals from wastes are cost-inefficient or environment unfriendly (Xie et al. 618-626, 10. Sustain. Video PDF Abstract 0 Datasets. List view. Introduction. W. 04. carried out the selective dissolution of PMs through the use of photocatalysis. Kudo et al. (B) The amount of metals obtained by selective recover. In the presence of base metal ions, Au 3+, Pd 2+ and Pt 4+ ions were selectively adsorbed to samples of protein-rich biomass. Wen, Yulan Wan, Qingfei Zhao, Xia Cao, Yong Ding, Zhong Lin Wang, Hexing Li, Zhenfeng Bian. Although traditional recovery technologies (pyrometallurgy and hydrometallurgy) have a recovery efficiency of up to 100%, they have disadvantages of high 此项成果以题为《Selective Recovery of Precious Metals through Photocatalysis》近日在线发表于国际期刊《Nature Sustainability》。 贵金属主要指金、银和铂族金属元素，具有良好的物理性能、较高的化学稳定性和较强的耐腐蚀性，被广泛应用于电子设备、化工催化剂、合 Since low concentration of precious metals cannot be recycled currently (Umeda et al. In 40 mM hydrochloric acid solution (pH 2. This website requires cookies, and the limited processing of your personal data in order to function. Nature Sustainability (2021), 10. , 2014, Yin et al. Yao Chen, Mengjiao Xu, J. The MNP-Tu was synthesized, characterized and examined as a reusable Figure 1. This is due to the fact that the properties of certain types of inactive or dead microbial biomass materials allow them to bind and concentrate metal ions from industrial effluents and aqueous solutions (Dobson and Burgess, 2007). Here, we report a peroxydisulfate (PDS)–based advanced oxidation process (AOPs) for selectively recovering Pd and Au from spent catalysts. 4 a-b). 45, 63–82 (2016). Chem. J. In recent years, recovery of metals from electronic waste within the European Union has become increasingly important due to potential supply risk of strategic raw material and environmental concerns. In this work, we systematically investigated the selectivity and solvation effects observed for dissolution by focusing Semantic Scholar extracted view of "Precious metal recovery" by Yao Chen Exploiting efficient strategies for the selective separation and extraction of valuable metals from e-waste is in urgent demand to offset the Selective recovery of precious metals through photocatalysis. The selective dissolution of precious metals can also be achieved, which simplifies the separation process in the recovery of precious metals. 1,2,3 Treatment processes of copper anode slime include traditional pyrometallurgy electrolysis, hydrometallurgy and a flotation-metallurgy combination process. Precious and noble metals, such as silver, gold, and the platinum group metals, are rare elements that possess high economic value due to their scarcity and exceptional chemical properties, including resistance to oxidation and corrosion [1]. The results obtained from adsorption experiments using the synthetic test solutions were highly encouraging and it became a matter of interest for us to evaluate the real time applicability of TEPA-PT gel for selective separation of precious metals from industrial leach liquor. Selective recovery of precious metals through Photocatalytic recovery, a novel precious metal recycling technology, dedicates to solving the environmental and energy consumption problems caused by traditional technologies. com) - Free download as PDF File (. Therefore, the recycling of PMs from deactivated catalysts becomes a critical step in industry. Choi et al. 058 Corpus ID: 269427404; Solar-assisted selective separation and recovery of precious group metals from deactivated air purification catalysts. TiO 2-500 is selected as an exceptional photocatalyst due to its low Cu 2+ adsorption and high Cu 2+ removal rate. Yao Chen. Here, we show a photocatalytic process Bian et al. Hydrometallurgy offers advantages such as low energy input, Europe PMC is an archive of life sciences journal literature. 1038/S41893-021-00697-4 View in Scopus Google Scholar Significantly, TTC-CTFs are also competent for selective and efficient gold recovery from the computer processing unit (CPU) leachate, as companied by 99% of recovery efficiency and considerable profit, highlighting the feasibility of the proposed TTC-CTFs for the precious metal recovery from the actual e-waste. , 2014). X. Green recycling of Pd and Au is crucial and difficult. The preparation of 4% P-TiO 2 requires 5. This paper presents a promising hydrometallurgical process to recover precious metals However, due to the continuous reduction of raw ore and rapidly rising demand, these precious metals have been classified as rare resources by international organizations. Precious metals, known for their high performance and scarcity, are indispensable our current lives. Article Solar-assisted selective separation and recovery of precious group metals from deactivated air purification catalysts Meijun Wua,1, Yao Chena,b,1, Zhenpeng Guoa,1, Xinru Wanga, Hanyun Zhangc, Ting Zhanga, Shuhui Guana, Zhenfeng Biana,⇑ a Ministry of Education Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional A similar trend can be observed in the leaching process of other metals. The rapid generation of end-of-life products has become the significant resources of precious metals. 3. Recovering precious metals The amount of metals obtained by selective recover. Xia Cao; YD Yong Ding. Jieya Wen; YW Yu Wan. Powered by. 1 Selective Recovery of Precious Metals through Photocatalysis 2 Yao Chen 1, Mengjiao Xu 1, Jieya Wen 1, Yu Wan 1, Qingfei Zhao 1, Xia Cao 3, Yong Ding 4, 3 Zhong Lin Wang3,4*, Hexing Li1,2* & Zhenfeng Bian1* 4 1 MOE Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare 5 Earth Functional Materials, Shanghai Normal University, Shanghai 1 Selective Recovery of Precious Metals through Photocatalysis 2 Yao Chen 1, Mengjiao Xu 1, Jieya Wen 1, Yu Wan 1, Qingfei Zhao 1, Xia Cao 3, Yong Ding 4, 3 Zhong Lin Wang3,4*, Hexing Li1,2* & Zhenfeng Bian1* 4 1 MOE Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare 5 Earth Functional Materials, Shanghai Normal University, Shanghai Selective recovery of precious metals through photocatalysis Nature Sustainability ( IF 25. DOI: 10. Zhenfeng BIAN | Cited by 8,448 | of Shanghai Normal University, Shanghai (SHNU) | Read 102 publications | Contact Zhenfeng BIAN Selective recovery of precious metals through photocatalysis. A closer look at Chen, Y. Both homogeneous and heterogeneous photocatalytic reactions are possible. (C) The process of selectively retrieving metals from a CPU board Recovering platinum group precious metals (PGMs) from used industrial catalysts is crucial and challenging. 153494 Corpus ID: 270746646; Photo-enhanced precious metal recovery enabled by trithiocyanuric-linked covalent triazine frameworks @article{Li2024PhotoenhancedPM, title={Photo-enhanced precious metal recovery enabled by trithiocyanuric-linked covalent triazine frameworks}, author={Huaimeng Li and Heng Zhang and Jiafang Liu and Zhenzhen Liu and Solar-assisted selective separation and recovery of precious group metals from deactivated air purification catalysts Sci Bull (Beijing) . 0 [1,2,3,4]. Prior works. The adsorption behavior of the DMA-PP gel for various metal ions at varying hydrochloric acid concentrations has been studied. 8, 9 Pd-based catalysts started to be used in organic synthesis more than one hundred years ago, with market demand for Pd increasing rapidly in recent years. Discover more research and events on morressier. Google Mine waters are widely regarded as environmental pollutants, but are also potential sources of valuable metals. 2, 10 The demand for precious metals is rising because of the expansion of industries utilizing their products, which results in the global supply shortage. , 2000). There is a growing emphasis on recovering these metals from secondary sources such as automotive catalysts or WEEE (waste of electrical and electronic equipment). 10 mg of Selective recovery of precious metals through photocatalysis. 1038/s41893-021-00697-4. Precious metals are widely applied in many industry fields due to their excellent corrosion resistance, good electrical conductivity and high catalytic activity. Water draining the Maurliden mine (Sweden) is highly acidic (pH 2. 0 downloads. However, the complexity of catalyst precious metals. Thus, integrated wastewater treatment is imperative to treat the high volumes of wastewater, indirectly increasing the overall operational cost [ 34 , 67 ]. Under such conditions, the scavenger filters are able to capture Pd and Pt as As non-renewable resources, precious metals are increasing in demand and consumption year by year, which cause the unpredictable changes in price. . Preciouse metals stelectively recovered by photo-catalytic reaction from the waste products (A) Schematic illustration of the selectivedissolution process of metal catalysts. 1) [2], [10]. This is our high-level measure of the quality and quantity of online attention that it has received. Among these metals, silver stands out as the most versatile, renowned for its excellent electrical and thermal conductivity, This selective recovery of precious metals is a result of the improved reduction facilitated by the MoS 2 coating, Selective recovery of precious metals through photocatalysis. reported the selective recovery of precious metals through photocatalysis [63]. [41] detected a noteworthy increasing trend in the extraction of gold, which elevated from around 0. 0 views. 2 Photocatalytic Dissolution of Precious Metals by TiO 2 through Photogenerated Free Radicals. View PDF View article Google Scholar [10] Highly efficient and selective recovery of Au(III) from aqueous solution by bisthiourea immobilized UiO-66-NH2: Performance and mechanisms. 618-626. These conventional methods for the recovery of precious metals from such leach liquors involve the DOI: 10. Ideal adsorbents should feature high Photocatalysis is considered a green process owing to its various advantages 11: Chen, Y. 2024. Yong Ding; Zhong Lin Wang. com. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 09 April 2024. 2020. In this work, we systematically investigated the selectivity and solvation Abstract: Abstract Precious metals such as gold and platinum are valued materials for a variety of important applications, but their scarcity poses a risk of supply disruption. Electronic waste, especially a mixture of end-of-life electronic products from a variety of sources, is of inherently high complexity in composition, phase, and This research output has an Altmetric Attention Score of 24. In this work, we systematically investigated the selectivity and solvation Exploring the pathways for photocatalytic dissolution of precious metals (PMs) is crucial for optimizing recovery. 230. Precious metals have long been considered as critical raw materials in many countries. 68 This work can selectively recover seven PMs (e. 058. We developed a facile, selective, high recovery system for precious metals based on complexation between melamine and cyanuric acid (denoted as MC) through hydrogen bonding. we determined that the radicals generated in photocatalysis were the key active species in the entire reaction. (C) The process of selectively retrieving metals from a CPU board (D) Selective recovery of precious metals through photocatalysis. YC Yao Chen. Precious metals such as gold and platinum are valued materials for a variety of important applications, but their scarcity poses a risk of supply interruption. 11, 12 Recovery of precious metals from Palladium (Pd) and gold (Au) are the most often used precious metals (PMs) in industrial catalysis and electronics. Heterogeneous photocatalysis is receiving more attention due to its potential uses in a wide range of sectors. View in Scopus Electronic waste grows globally at a rate of 5% annually, which makes electronic waste recycling (WEEE recycling) an urgent task aimed at achieving (i) environmental protection and (ii) the preservation of mineral resources through the re-introduction of strategic metals into the market. Due to its low natural However, most of the current reported CMPs with two-dimensional (2D) topological CMPs for photocatalysis consist of a D-A structure, leading to easy reverse complexation of charges and holes. S. Here, we report the Introduction. In this work, thiourea 1 Selective Recovery of Precious Metals through Photocatalysis 2 Yao Chen 1, Mengjiao Xu 1, Jieya Wen 1, Yu Wan 1, Qingfei Zhao 1, Xia Cao 3, Yong Ding 4, 3 Zhong Lin Wang3,4*, Hexing Li1,2* & Zhenfeng Bian1* 4 1 MOE Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare 5 Earth Functional Materials, Shanghai Normal University, Shanghai Exploring the pathways for photocatalytic dissolution of precious metals (PMs) is crucial for optimizing recovery. Among the biomass samples tested, egg-shell membrane exhibited the highest adsorption ability and had high As non-renewable resources, precious metals are increasing in demand and consumption year by year, which cause the unpredictable changes in price. Secondary resources are important sources for maintaining the Dimethylamine (DMA) functional group was grafted to obtain modified persimmon peel gel (DMA-PP) with the focus of development of selective recovery of gold as well as other precious metals like palladium and platinum. Black copper sludge (BCS), a valuable hazardous waste produced during Cu electrolytic refining, contains various precious metals, including Cu 3 As. (2021), pp. , Ag, Au, Pd, Pt, Rh, Ru, and Ir) from waste circuit boards, three Selective recovery of precious metals through photocatalysis. As one of the most important precious metals, palladium finds widespread use in catalysis, 1 – 3 electronic devices, 4 – 6 corrosion resistance alloys, 7 and medicine. , 4 ( 2021 ) , pp. Here, we Here, we show a photocatalytic process that allows one to selective retrieve 7 kinds of precious metal elements (Ag, Au, Pd, Pt, Ru, Rh and Ir) (with dissolution efficiency of 99%) from waste circuit boards, ternary automotive catalysts and even ores. , 1998, Cortina et al. Mengjiao Xu; JW Jieya Wen. 1038/s41893-021 Photocatalytic Dissolution of Precious Metals by TiO 2 through Photogenerated Free Radicals. This study delves into an environmentally friendly approach to selectively recover PGMs from commercial air purifiers using photocatalytic redox technology. These authors contributed equally to this work. Consequently, this study utilizes TiO 2-500 as the photocatalyst. Selective recovery of precious metals through photocatalysis Nat. Crossref View in Scopus Google The recovery of copper (Cu) from secondary sources has emerged as a promising trend in the copper industry’s advancement. Separation of Cu 2+ and Ni 2+ by photocatalysis and the recovery of copper. In this work, we systematically investigated the selectivity and solvation effects observed for dissolution by focusing on photocatalysis, precious metals and solvents. Among them, the adsorption stands out on account of its low cost, environmental friendliness, and facile operation [10]. Key takeaway: 'This photocatalytic process selectively recovers 7 precious metals (Ag, Au, Pd, Pt, Ru, Rh, and Ir) from waste circuit boards, automotive catalysts, and ores, providing an environmentally friendly, scalable, and efficient recycling technology for valuable resources. Imprint Fan, Z. 1) are a type of ferric iron-reducing microorganism and thus are able to reduce Fe(III) ions to Fe(II) ions by electron transfer. During the leaching process of these materials, solutions with low concentrations of precious metals are Selective recovery of precious metals through photocatalysis. sulphuraria cells (Fig. Chem Eng J, The anode slime produced from copper electrorefining is an important by-product in the recovery of valuable metals, especially precious and rare metals. , 2023; Xia and Ghahreman, 2024). Rev. Qingfei Zhao; XC Xia Cao. Scribd is the world's largest social reading and publishing site. Exploring the pathways for photocatalytic dissolution of precious metals (PMs) is crucial for optimizing recovery. Cells were incubated with precious metals dissolved in hydrochloric acid solution for 30 min. , 2017, Xie et al. Selective recovery of precious metals through photocatalysis Recovering precious resources from waste is essential to implement a circular economy, but the available methods carry environmental costs. Eng. txt) or read online for free. Chen, Y. Bian et al. , Wan, Y. The method is also suitable for electronic waste, automobile three-way catalysts, industrial catalysts and ore. Employing TiO 2 photocatalysis to deal with landfill leachate: current status and development. Crossref View in (DOI: 10. These reactions fall into four groups based on their spontaneity under various temperature conditions: (1) the chlorination reaction is spontaneous at any temperature >0 °C; (2) the chlorination 2 State Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization, Kunming University of Science and Technology, Kunming Huang D. Precious metals is recovered with high purity (≥98%) through a simple reductive method. (2021) S. This study investigates theoretical and experimental aspects using BCS as a raw material The solvent extraction reagents and chelating resins that have been developed to date cannot necessarily achieve satisfactory separation and recovery of precious metals from such a complex mixture system (Cortina et al. 1021/acsestengg. , Cao, X. The PDS/NaCl photochemical system achieves DOI: 10. 1038/s41893-021-00697-4 Yao Chen, Mengjiao Xu, Jieya Wen, Yu Wan, Qingfei Zhao, Xia Cao, Yong Ding, Zhong Lin Wang, Hexing Li, Zhenfeng Bian 1 Selective Recovery of Precious Metals through Photocatalysis 2 Yao Chen 1, Mengjiao Xu 1, Jieya Wen 1, Yu Wan 1, Qingfei Zhao 1, Xia Cao 3, Yong Ding 4, 3 Zhong Lin Wang3,4*, Hexing Li1,2* & Zhenfeng Bian1* 4 1 MOE Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare 5 Earth Functional Materials, Shanghai Normal University, Shanghai *The material contained in this document is based upon work supported by a National Aeronautics and Space Administration (NASA) grant or cooperative agreement. Yao Chen Mengjiao Xu +7 authors Zhenfeng Bian. For the recovery of precious and rare metals from aqueous solutions, we have focused on the metal ion-reducing bacteria, Shewanella algae (ATCC 51181) and Shewanella oneidensis (ATCC 700550). Nature Sustainability, 4(7 Abstract Precious metals such as gold and platinum are valued materials for a variety of important applications, but their scarcity poses a risk of supply interruption. The precious platinum group metals distributed in urban industrial products should be recycled because of their rapid decline in the contents through excessive mining. photocatalysis and deep eutectic solvents for leaching (Li et al. et al. Moreover, it is included in the list of precious metals, valuable for several applications, e. Selective recovery of precious metals through Selective recovery of precious metals through photocatalysis. Derivative works. and Jiang W. Recovering precious metals from the complex multi-metal pregnant thiosulfate solution of WPCBs poses significant challenges [13]. algae (ATCC 51181) to recover soluble PGMs. 1039/d3gc02518g Corpus ID: 261013532; Precious metal catalyst recycling through photocatalytic dissolution @article{Chen2023PreciousMC, title={Precious metal catalyst recycling through photocatalytic dissolution}, author={Yao Chen and Huan He and Shuyang Xu and Zhengxi Zou and Weiming Hua and Zhenfeng Bian and Hexing Li and Yinghong Yue}, Metals Fe Ni Cu Ag Au Pd e f Dissolution (%) Dissolution (%) Gold content (mg) Cu Ag Au Pt 0 h TiO 2 2 h 4 h 8 h 12 h CH 3CN CH 3CN + CH 2Cl 2 Diluted HCl Filtration e-waste powder Metal waste CH 3CN Filtration Cu, Ag, Au solution 3CN + CH 2Cl 2 Pd solution Waste Fe, Ni solution Ffd. , Zhao, Q. 2024 Apr 26:S2095-9273(24)00307-4. It was found Download scientific diagram | Photocatalytic selective dissolution of metals from metal catalysts (1% Cu/TiO2, 1% Ag/TiO2, 1% Au/TiO2 and 1% Pt/TiO2), CPU boards and e-waste powder a, Schematic of Experimental Procedures. Unfortunately, no viable recycling is practiced, except burning electronic circuit boards in underdeveloped countries, mainly because of the lack of chemical scavengers as adsorbents. In this work, thiourea modified magnetic biocarbons are prepared via an energy-efficient microwave-assisted activation and assessed as potential adsorbents to recover platinum ions (i. The solvent of the dissolved product from publication: Selective Recovery of Precious Metals through Photocatalysis | Precious Biosorption is considered promising technology for the recovery of precious metals. Sustainability. Here, we developed a novel r The cylinder-shaped filters are used in selective recovery of Pd and Pt from acidic leachate of electronic waste simply by passing the solution through the object. Selective adsorption and recovery of precious metal ions from water and metallurgical slag by polymer brush graphene–polyurethane composite Reactive and Functional Polymers, Volume 136, 2019, pp. Selective recovery of precious metals through photocatalysis. In this work, we systematically investigated the selectivity and solvation effects observed for dissolution by focusing Photocatalysis Air purification catalysts Platinum group precious metals Selective recovery abstract The mitigation of environmental and energy crises could be advanced by reclaiming platinum group pre-cious metals (PGMs) from decommissioned air purification catalysts. 1). The Shewanella bacteria (Fig. Key words. An interface is thought to occur in heterogeneous photocatalysis between a liquid containing the process's reactants and products and a strong metal photocatalyst. As nonrenewable resources, the demand and consumption of The existing technologies for precious metal recovery mainly concentrate on adsorption [10], surface coordination [11], solvent extraction [12], membrane separation [13], and ion exchange [14], etc. Firstly, a certain amount of Na 3 PO 4 was added to 40 mL of deionized water to prepare the PO 4 3 precursor. The key problems are their scarcity and high cost. Yao Chen; MX Mengjiao Xu. 618 - 626 , 10. Here, we report a photocatalytic process that enables one to selectively retrieve seven precious metals—silver (Ag), gold (Au), palladium (Pd), platinum (Pt), rhodium (Rh), ruthenium (Ru) and Here, we show a photocatalytic process that allows one to selective retrieve 7 kinds of precious metal elements (Ag, Au, Pd, Pt, Ru, Rh and Ir) (with dissolution efficiency of 99%) from waste Here, we report a photocatalytic process that enables one to selectively retrieve seven precious metals—silver (Ag), gold (Au), palladium (Pd), platinum (Pt), rhodium (Rh), ruthenium (Ru) and 1 Selective Recovery of Precious Metals through Photocatalysis 2 Yao Chen 1, Mengjiao Xu 1, Jieya Wen 1, Yu Wan 1, Qingfei Zhao 1, Xia Cao 3, Yong Ding 4, 3 Zhong Lin Wang3,4*, Hexing Li1,2* & Zhenfeng Bian1* 4 1 MOE Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare 5 Earth Functional Materials, Shanghai Normal University, 1 Selective Recovery of Precious Metals through Photocatalysis 2 Yao Chen 1, Mengjiao Xu 1, Jieya Wen 1, Yu Wan 1, Qingfei Zhao 1, Xia Cao 3, Yong Ding 4, 3 Zhong Lin Wang3,4*, Hexing Li1,2 Request PDF | Selective recovery of precious metals through photocatalysis | Precious metals such as gold and platinum are valued materials for a variety of important applications, but their Downloadable (with restrictions)! Precious metals such as gold and platinum are valued materials for a variety of important applications, but their scarcity poses a risk of supply disruption. We harness sunlight as the energy source to activate the photocatalysts, facilitating the complete Selective recovery of precious metals through photocatalysis. This test solution was passed through the column packed with 0. The addition of melamine to an aqueous solution of metal ions allows for homogeneous coordination to metal ions with high efficiency at a high The photocatalytic precious metal recovery test was performed in a quartz tube. These types of biomasses are relatively inexpensive Recycling metals from waste materials has become a major approach to metal resource utilization, with electronic waste (e‐waste) and waste catalysts being the most important recycling resources. e. Chem Soc Rev (2009) Highly selective recovery of perfluorooctanoic acid from semiconductor wastewater via adsorption on pH-stimulated poly (dimethyl amino) Selective recovery of precious metals through photocatalysis. , 4 (2021), pp. Chen et al. IntroductionPalladium is a highly toxic metal, able to inactivate in PdCl 2 form the enzymes trypsin and chymotrypsin and disturb physiologic responses at concentrations lower than ppm levels. Heterogeneous photocatalyst materials for water splitting. algae cells were harvested by centrifugation, resuspended in KH 2 PO 4 /NaOH Yao Chen;Mengjiao Xu;Jieya Wen;Yu Wan;Qingfei Zhao;Xia Cao;Yong Ding;Zhong Lin Wang;Hexing Li;Zhenfeng Bian; (2021). Yao Chen, and the process has potential significance for enhancing photocatalytic selective recovery of precious metals. After 24 h of batch inoculation, S. 7 Submission Guide > ) Pub Date: 2021-03-25 , DOI: 10. Different P-TiO 2 ratios reduce the Na 3 PO 4 content. Crossref View in Scopus Google Scholar [35] He research interest focuses on the design and synthesis of TiO 2-based nanomaterials for environmental photocatalysis. The loss of highly sought-after metals such as gold, silver, and platinum during extraction processes not only constitutes a significant waste of valuable resources but also contributes to alarming environmental pollution. 2 | P s (1% C/t O 2, 1% ag/tO 2, 1% a/t O 2 1% Pt/t O 2), CPu Chen, Y. This article provides a comprehensive overview of the research progress on precious metal The recovery of precious metals through hydrometallurgy is often associated with environmental concerns due to the use of strong chemical lixiviants, producing highly toxic wastewater [19, 34, 67]. Yu Wan; QZ Qingfei Zhao. The ever-growing adverse impacts of these highly valued metals significantly increase the contamination of water bodies on discharge, while 1 Selective Recovery of Precious Metals through Photocatalysis 2 Yao Chen 1, Mengjiao Xu 1, Jieya Wen 1, Yu Wan 1, Qingfei Zhao 1, Xia Cao 3, Yong Ding 4, 3 Zhong Lin Wang3,4*, Hexing Li1,2* & Zhenfeng Bian1* 4 1 MOE Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare 5 Earth Functional Materials, Shanghai Normal University, Shanghai Selective recovery of precious metals through photocatalysis Nature Sustainability ( IF 25. Mater. 10. algae was grown anaerobically in ATCC medium 2 containing sodium lactate and iron (III) citrate at 25 °C and pH 7. , 4 Tunable amine-functionalized silsesquioxane-based hybrid networks for efficient removal of heavy metal ions and selective adsorption of anionic dyes. We used the metal ion-reducing bacterium S. 1. Precious metal recovery by selective adsorption using biosorbents. in catalytic converters [1]. , Bian, Z. 902-910. (2021) J. 1-9. Researchers have explored several techniques, such as activated carbon adsorption, cementation, solvent extraction, and electrodeposition to extract metals from thiosulfate solutions (Fig. g. View in Scopus Google Scholar. At present, countries using the flotation-metallurgy The mitigation of environmental and energy crises could be advanced by reclaiming platinum group precious metals (PGMs) from decommissioned air Solar-assisted Selective Separation and Recovery of Precious Group Metals from Cited 0 | Views 43. pdf), Text File (. Precious metal recovery. In electroless electroplating wastewater, common reducing substances include C 4 O 6 H 4 KNa, Na 3 C 6 H Download scientific diagram | | Precious metal ion reduction process. In this context, recovery of such metals result both Exploring the pathways for photocatalytic dissolution of precious metals (PMs) is crucial for optimizing recovery. Then, 400 mg of commercial TiO 2 Recovering precious metals (PMs) from waste products provides a promising solution for sustainability. The traditional methods (e. Nat Sustain, 4 (2021), pp. , 2011), the recovery of precious metals (Au 3+, Pd 2+, and Pt 4+) under 25 mg/L were tested using G. By combining tra The precious platinum group metals distributed in urban industrial products should be recycled because of their rapid decline in the contents through excessive mining. By combining transient characterization, reaction kinetics, and density functional Precious metals such as gold and platinum are valued materials for a variety of important applications, but their scarcity poses a risk of supply disruption. We mainly analyze the mechanisms of the recovery strategies through coordination theory and redox theory and explore the essence of selective recovery through the different Exploring the pathways for photocatalytic dissolution of precious metals (PMs) is crucial for optimizing recovery. However, the dissolution and recovery of precious metals using the current methods are limited by associated serious environmental pollution and high energy consumption. Selective Recovery of Precious Metals Through Photocatalysis(科研通-Ablesci. Recycling precious metals from waste provides a promising solution; however, conventional metallurgical methods bear high environmental costs and energy consumption. However, the dissolution and recovery of precious metals using the current methods are limited by associated serious environmental pollut Selective recovery of precious metals through photocatalysis Article 25 March 2021. ' DOI: 10. L. Selective recovery of precious metals through we systematically investigated the selectivity and solvation effects observed for dissolution by focusing on photocatalysis, precious metals Environmental pollution and resource shortage are two major challenges facing the world today, and resourcization of precious metals is one of the effective strategies to confront these problems. Various types of protein-rich biomass were examined as selective and environment-friendly adsorbents for precious metal ions. 288: 2021: Low-solvation electrolytes for high-voltage sodium-ion batteries. Moreover, these methods are unfeasible for the extraction of critical metals at low concentrations (Lo et al. 138-152 Selective metal recovery by mucin: turning gold from wastewater into a peroxymonosulfate-activated catalyst†. Significance Electronic waste, also called e-waste, is rapidly becoming a major industrial hazard because of the increased use of circuits Adsorption of precious metals in acidic aqueous solutions using thiourea modified magnetic magnetite nanoparticle (MNP-Tu) was examined. , Wen, J. Nat Sustain (2021) A. Yao Chen, and the process has potential significance for enhancing photocatalytic selective recovery of precious Currently, precious metal recovery from e-waste water is usually performed by liquid extraction or sorbent processes. 1038/S41893-021-00697-4) Precious metals such as gold and platinum are valued materials for a variety of important applications, but their scarcity poses a risk of supply disruption. , Pt(IV)) from A porphyrin-based porous polymer with selective binding shows remarkable selectivity and a reductive mechanism, a combination which makes for record-high recycling of precious metals––particularly gold––from e-waste. From this perspective,wehaveconducteda comprehensive review of the precious metal recovery technologies that have been reported in the existing literature. 8 to 35% Precious metal (PM) catalysts have been widely used in the chemical industry owing to their high activity, selectivity and stability. 5), over 80% of In order to know the possible application to the selective recovery of precious metals from industrial effluents, continuous flow experiment was also carried out by using a column packed with crosslinked lignophenol gel. Secondary resources are important sources for maintaining the supply-demand relationships of precious metals. 1016/j. Nature Sustainability, 4(7 1. , 2003, Els et al. Gold recovery from electronic waste could prevent excessive mining with toxic extractants and provide a sustainable path for recycling precious metals. Yao Chen, Qianyu Qiao Selective recovery of precious metals through photocatalysis; Selective recovery of precious metals through photocatalysis. Photocatalytic Dissolution of Precious Metals by TiO 2 through Photogenerated Free Radicals. In Selective recovery of precious metals through photocatalysis. cej. However, the reserves of precious metals falls short of the production globally. Rapid and selective recovery of palladium from platinum group metals and base metals using a thioamide-modified calix[4]arene extractant in environmentally friendly hydrocarbon fluids Through a reductive capture mechanism, the reductive adsorption sites of N‐phenylpyrrolidine coordinate selectively with precious metals, the reduced metal is captured by the hierarchically Metal ion adsorption from industrial wastewater has received increasing attention for the elimination of heavy metals and selective recovery of precious metals. The renewable energy-driven selective PM recycling approach crucial for carbon neutrality is under exploration. Hazard. Crystal phase-controlled synthesis, properties and applications of noble metal nanomaterials. , Xu, M. krz lftunu kubmnk nfc rlhrr achu xoe krj rgvck cdipks