Hydroxylated g-C3N4 designed for the activation of peroxymonosulfate via a charge transfer complex path

Zhiquan Jin; Shuqi Li; Sijia Jin; Da Wang; Feilong Dong; Shuang Song; Min Liu; Tao Zeng

Catalysis Communications (Nov 2022)

Hydroxylated g-C3N4 designed for the activation of peroxymonosulfate via a charge transfer complex path

Zhiquan Jin,
Shuqi Li,
Sijia Jin,
Da Wang,
Feilong Dong,
Shuang Song,
Min Liu,
Tao Zeng

Affiliations

Zhiquan Jin: Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
Shuqi Li: Hangzhou Vocational & Technical College, Ecology and Health Institute, Hangzhou, PR China
Sijia Jin: Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
Da Wang: Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
Feilong Dong: Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
Shuang Song: Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
Min Liu: College of Architecture and Environment, Sichuan University, Sichuan 610065, China
Tao Zeng: Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China; College of Architecture and Environment, Sichuan University, Sichuan 610065, China; Corresponding author at: Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China.

Journal volume & issue: Vol. 171
p. 106512

Abstract

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In this work, hydroxylated g-C3N4 is synthesized by one-step hydrothermal method and the mechanism of activating PMS mediated by OH-C3N4/PMS charge transfer surface complex is proposed and verified for the first time. Based on the dual roles of PMS as surface complexing ligand and free radical precursor, PMS is activated effectively on the surface of OH-C3N4. The degradation mechanism of pollutants formed by C3N4-OOSO3− charge transfer surface complex under visible light irradiation is explored by radical quenching experiments and EPR spectrum.

Published in Catalysis Communications

ISSN: 1566-7367 (Print); 1873-3905 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/catalysis-communications

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