1
|
Ma W, Sun M, Huang D, Chu C, Hedtke T, Wang X, Zhao Y, Kim JH, Elimelech M. Catalytic Membrane with Copper Single-Atom Catalysts for Effective Hydrogen Peroxide Activation and Pollutant Destruction. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:8733-8745. [PMID: 35537210 DOI: 10.1021/acs.est.1c08937] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The superior catalytic property of single-atom catalysts (SACs) renders them highly desirable in the energy and environmental fields. However, using SACs for water decontamination is hindered by their limited spatial distribution and density on engineered surfaces and low stability in complex aqueous environments. Herein, we present copper SACs (Cu1) anchored on a thiol-doped reactive membrane for water purification. We demonstrate that the fabricated Cu1 features a Cu-S2 coordination─one copper atom is bridged by two thiolate sulfur atoms, resulting in high-density Cu-SACs on the membrane (2.1 ± 0.3 Cu atoms per nm2). The Cu-SACs activate peroxide to generate hydroxyl radicals, exhibiting fast kinetics, which are 40-fold higher than those of nanoparticulate Cu catalysts. The Cu1-functionalized membrane oxidatively removes organic pollutants from feedwater in the presence of peroxide, achieving efficient water purification. We provide evidence that a dual-site cascade mechanism is responsible for in situ regeneration of Cu1. Specifically, one of the two linked sulfur atoms detaches the oxidized Cu1 while donating one electron, and an adjacent free thiol rebinds the reduced Cu(I)-S pair, retrieving the Cu-S2 coordination on the reactive membrane. This work presents a universal, facile approach for engineering robust SACs on water-treatment membranes and broadens the application of SACs to real-world environmental problems.
Collapse
Affiliation(s)
- Wen Ma
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
- Department of Chemical and Biotechnology Engineering, Université de Sherbrooke, Sherbrooke, Quebec J1K 2R1, Canada
| | - Meng Sun
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Dahong Huang
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| | - Chiheng Chu
- Faculty of Agriculture, Life, and Environmental Sciences, Zhejiang University, Hangzhou 310058, China
| | - Tayler Hedtke
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| | - Xiaoxiong Wang
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| | - Yumeng Zhao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jae-Hong Kim
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| | - Menachem Elimelech
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| |
Collapse
|
2
|
Zhang H, Cai C, Hu T, Zhang Z, Dai L, Fei H, Bai H, Wu C, Gong X, Zheng X. Magnetically separable and efficient platinum catalyst: Amino ligand enhanced loading and Fe
2+
facilitated Pt
0
formation. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Haifeng Zhang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
| | - Cheng Cai
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
| | - Tao Hu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
| | - Zhijie Zhang
- Key Laboratory of Science and Technology on High‐tech Polymer Materials Chinese Academy of Sciences Beijing China
| | - Lina Dai
- Key Laboratory of Science and Technology on High‐tech Polymer Materials Chinese Academy of Sciences Beijing China
| | - Huafeng Fei
- Key Laboratory of Science and Technology on High‐tech Polymer Materials Chinese Academy of Sciences Beijing China
| | - Hongli Bai
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
| | - Chonggang Wu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
| | - Xinghou Gong
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
| | - Xuan Zheng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
| |
Collapse
|
3
|
Wang K, Wang X, Liang X. Synthesis of High Metal Loading Single Atom Catalysts and Exploration of the Active Center Structure. ChemCatChem 2020. [DOI: 10.1002/cctc.202001255] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Kaiying Wang
- Department of Chemical and Biochemical Engineering Missouri University of Science and Technology Rolla MO 65409 USA
| | - Xiaofeng Wang
- College of Environmental Science and Engineering Dalian Maritime University Dalian 116026 P.R. China
| | - Xinhua Liang
- Department of Chemical and Biochemical Engineering Missouri University of Science and Technology Rolla MO 65409 USA
| |
Collapse
|