Three-Dimensional Welded Mn1 Site Catalysts with nearly 100% Singlet Oxygen Fabrication for Contaminant Elimination

Xiao Ge; Donghua Xie; Rui-fen Cheng; Wenxing Chen; Cai Chen; Fangyao Zhou; Xiaozhi Wang; Jie-jie Chen; Guo-ping Sheng; Yuen Wu

doi:10.1021/prechem.2c00006

Precision Chemistry (Feb 2023)

Three-Dimensional Welded Mn1 Site Catalysts with nearly 100% Singlet Oxygen Fabrication for Contaminant Elimination

Xiao Ge,
Donghua Xie,
Rui-fen Cheng,
Wenxing Chen,
Cai Chen,
Fangyao Zhou,
Xiaozhi Wang,
Jie-jie Chen,
Guo-ping Sheng,
Yuen Wu

Affiliations

Xiao Ge: The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
Donghua Xie: CAS Key Laboratory of Urban Pollutants Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
Rui-fen Cheng: CAS Key Laboratory of Urban Pollutants Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
Wenxing Chen: Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
Cai Chen: The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
Fangyao Zhou: The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
Xiaozhi Wang: School of Environmental Science and Engineering, Yangzhou University, Yangzhou, China
Jie-jie Chen: CAS Key Laboratory of Urban Pollutants Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
Guo-ping Sheng: CAS Key Laboratory of Urban Pollutants Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
Yuen Wu: The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China

DOI: https://doi.org/10.1021/prechem.2c00006
Journal volume & issue: Vol. 1, no. 3
pp. 153 – 160

Abstract

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Reactive oxygen species (ROS) have a significant part in the elimination of recalcitrant organic pollutants and commonly coexist in one advanced oxidation system. It is difficult for us to make clear the effect of the co-instantaneous generation of radicals and nonradicals, which would cover and obscure the transformation pathway. Herein, a coordinate welding process is presented for fabricating accessible Mn1 site catalysts (Mn SSCs) in order to clarify the nonradical (singlet oxygen/1O2) generated pathway and transformation in oxidative removal of contaminants. The Mn SSCs achieve nearly 100% 1O2 fabrication by activating peroxymonosulfate, which displays an excellent sulfamethoxazole elimination performance, super anti-anion interference, and extraordinary stability. As revealed by density functional theory calculations, the Mn SSCs with a special welded three-dimensional nanostructure could significantly boost the activation process by oxidizing the peroxymonosulfate at the interlayer of Mn SSCs and reducing dissolved oxygen on the surface of Mn SSCs. This design of Mn SSCs with a three-dimensional welded nanostructure might offer a potential approach for employing single site catalysts for environmental remediation.

Published in Precision Chemistry

ISSN: 2771-9316 (Online)
Publisher: American Chemical Society
Country of publisher: United States
LCC subjects: Science: Chemistry
Website: https://pubs.acs.org/journal/pcrhej

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