Optimized Cu2O-{100} facet for generation of different reactive oxidative species via peroxymonosulfate activation at specific pH values to efficient acetaminophen removal

Chen Ke; Yang Xudong; Hao Rui; Shao Minghui; Yang Xiaoyong; Li Xiuze; Li Yuxuan; Liu Juzhe; Zhang Sai

doi:10.1515/ntrev-2022-0542

Nanotechnology Reviews (Jun 2023)

Optimized Cu2O-{100} facet for generation of different reactive oxidative species via peroxymonosulfate activation at specific pH values to efficient acetaminophen removal

Chen Ke,
Yang Xudong,
Hao Rui,
Shao Minghui,
Yang Xiaoyong,
Li Xiuze,
Li Yuxuan,
Liu Juzhe,
Zhang Sai

Affiliations

Chen Ke: Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing100191, China
Yang Xudong: The Key Laboratory of Resources and Environmental System Optimization, Ministry of Education, College of Environmental Science and Engineering, North China Electric Power University, Beijing102206, China
Hao Rui: National Engineering Research Center of Nonferrous Metals Materials and Products for New Energy, GRINM Group Co. Ltd, Beijing100088, China
Shao Minghui: The Key Laboratory of Resources and Environmental System Optimization, Ministry of Education, College of Environmental Science and Engineering, North China Electric Power University, Beijing102206, China
Yang Xiaoyong: State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang621010, China
Li Xiuze: The Key Laboratory of Resources and Environmental System Optimization, Ministry of Education, College of Environmental Science and Engineering, North China Electric Power University, Beijing102206, China
Li Yuxuan: The Key Laboratory of Resources and Environmental System Optimization, Ministry of Education, College of Environmental Science and Engineering, North China Electric Power University, Beijing102206, China
Liu Juzhe: The Key Laboratory of Resources and Environmental System Optimization, Ministry of Education, College of Environmental Science and Engineering, North China Electric Power University, Beijing102206, China
Zhang Sai: The Key Laboratory of Resources and Environmental System Optimization, Ministry of Education, College of Environmental Science and Engineering, North China Electric Power University, Beijing102206, China

DOI: https://doi.org/10.1515/ntrev-2022-0542
Journal volume & issue: Vol. 12, no. 1
pp. 132438 – 525

Abstract

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Activation of peroxymonosulfate (PMS) to degrade persistent organic contaminants has received increasing attention in wastewater purification. In this study, Cu2O catalysts with different exposed crystal facets were prepared, characterized, and evaluated for acetaminophen (ACE) degradation through PMS activation. The experimental results showed that cubic Cu2O with {100} facets exhibited remarkable activity on ACE removal by PMS activation in wide pH range of 3–11. DFT calculations indicated that Cu2O-{100} displayed higher electron transfer efficiency and PMS adsorption ability, further improving PMS activation. The radicals quenching experiments and electron paramagnetic resonance (EPR) results illustrated that singlet oxygen (1O2) was dominant reactive oxidative species (ROSs) during oxidation reactions and the relevant generation pathways were distinctly elucidated. Finally, the possible PMS activation mechanisms were discussed for ACE degradation in a wide pH range. This study will provide new insights to disclose PMS-based advanced oxidation processes (AOPs), and offer a new approach for wastewater purification by non-radical reactions.

Published in Nanotechnology Reviews

ISSN: 2191-9089 (Print); 2191-9097 (Online)
Publisher: De Gruyter
Country of publisher: Poland
LCC subjects: Technology: Chemical technology; Science: Chemistry: Physical and theoretical chemistry
Website: https://www.degruyter.com/view/j/ntrev

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