Interfacial Coordinational Bond Triggered Photoreduction Membrane for Continuous Light-Driven Precious Metals Recovery

Wang, Ranhao; Shangguan, Yangzi; Feng, Xuezhen; Gu, Xiaosong; Dai, Wei; Yang, Songhe; Tang, Huan; Liang, Jiaxin; Tian, Yixin; Yang, Dazhong; Chen, Hong

2023-03-01

10.1021/acs.nanolett.2c04852

NANO LETTERS   Impact Factor & Quartile

1530-6984

1530-6992

Chemical/electric energy-driven processes dominate the traditional precious metal (PM) recovery market. The renewable energy-driven selective PM recycling approach crucial for carbon neutrality is under exploration. Herein, via an interfacial structure engineering approach, coordinational-active pyridine groups are covalently integrated onto the photoactive semiconductor SnS2 surface to construct Py-SnS2. Triggered by the preferred coordinational binding force between PMs and pyridine groups, together with the photoreduction capability of SnS2, Py-SnS2 shows significantly enhanced selective PM-capturing performance toward Au3+, Pd4+, and Pt4+ with recycling capacity up to 1769.84, 1103.72, and 617.61 mg/g for Au3+, Pd4+, and Pt4+, respectively. Further integrating the Py-SnS2 membrane into a homemade light-driven flow cell, 96.3% recovery efficiency was achieved for continuous Au recycling from a computer processing unit (CPU) leachate. This study reported a novel strategy to fabricate coordinational bonds triggered photoreductive membranes for continuous PM recovery, which could be expanded to other photocatalysts for broad environmental applications.

covalent functionalization interfacial engineering photocatalyst precious metals recovery redox active membrane

SCI

English

First ; Corresponding

National Key Research and Development Program of China[2021YFA1202500] ; Natural Science Funds for Distinguished Young Scholar of Guangdong Province, China[2020B151502094] ; Founda-tion of Shenzhen Science, Technology and Innovation Commission, China[JCYJ20200109141625078] ; Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials[ZDSYS20200421111401738]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000950584200001

AMER CHEMICAL SOC

MATERIALS SCIENCE

Web of Science

Southern Univ Sci & Technol, Shenzhen Key Lab Interfacial Sci & Engn Mat, State Environm Protect Key Lab Integrated Surface, Sch Environm Sci & Engn,Guangdong Prov Key Lab Soi, Shenzhen 518055, Peoples R China

Wang, Ranhao,Shangguan, Yangzi,Feng, Xuezhen,et al. Interfacial Coordinational Bond Triggered Photoreduction Membrane for Continuous Light-Driven Precious Metals Recovery[J]. NANO LETTERS,2023.

Wang, Ranhao.,Shangguan, Yangzi.,Feng, Xuezhen.,Gu, Xiaosong.,Dai, Wei.,...&Chen, Hong.(2023).Interfacial Coordinational Bond Triggered Photoreduction Membrane for Continuous Light-Driven Precious Metals Recovery.NANO LETTERS.

Wang, Ranhao,et al."Interfacial Coordinational Bond Triggered Photoreduction Membrane for Continuous Light-Driven Precious Metals Recovery".NANO LETTERS (2023).