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论文类型：期刊论文

第一作者：Mingjie Huang, Yu-Sheng Li, Chuan-Qi Zhang, Chao Cui, Qing-Qing Huang, Mengkai Li, Zhimin Qiang, Tao Zhou, Xiaohui Wu, and Han-Qing Yu*

发表刊物：Proceedings of the National Academy of Sciences of the United States of America

收录刊物：SCI

刊物所在地：美国

学科门类：工学

一级学科：环境科学与工程

文献类型：J

卷号：119

期号：30

页面范围：e2202682119

ISSN号：0027-8424

关键字：advanced oxidation process, peroxymonosulfate, catalysis, water treatment, large-scale

DOI码：10.1073/pnas.2202682119

发表时间：2022-07-18

影响因子：12.779

摘要：Heterogeneous peroxymonosulfate (PMS)–based advanced oxidation processes (AOPs) have shown a great potential for pollutant degradation, but their feasibility for largescale water treatment application has not been demonstrated. Herein, we develop a facile coprecipitation method for the scalable production (∼10 kg) of the Cu-Fe-Mn spinel oxide (CuFeMnO). Such a catalyst has rich oxygen vacancies and symmetrybreaking sites, which endorse it with a superior PMS-catalytic capacity. We find that the working reactive species and their contributions are highly dependent on the properties of target organic pollutants. For the organics with electron-donating group (e.g., -OH), high-valent metal species are mainly responsible for the pollutant degradation, whereas for the organics with electron-withdrawing group (e.g., -COOH and -NO2), hydroxyl radical (•OH) as the secondary oxidant also plays an important role. We demonstrate that the CuFeMnO–PMS system is able to achieve efficient and stable removal of the pollutants in the secondary effluent from a municipal wastewater plant at both bench and pilot scales. Moreover, we explore the application prospect of this PMSbased AOP process for large-scale wastewater treatment. This work describes an opportunity to scalably prepare robust spinel oxide catalysts for water purification and is beneficial to the practical applications of the heterogeneous PMS-AOPs.

发布期刊链接：https://www.pnas.org/doi/10.1073/pnas.2202682119