Modification of sludge biochar by MnO2 to degrade methylene blue: Synergistic catalysis and degradation mechanisms

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成果类型：

期刊论文

作者：

Li, Yuanping;Liu, Yuqing;Liu, Yihuan;Chen, Yaoning;Chen, Li;...

通讯作者：

Yaoning Chen

作者机构：

[Li, Yuanping] Hunan City Univ, Coll Municipal & Mapping Engn, Yiyang 413000, Hunan, Peoples R China.

[Li, Linshenzhang; Liu, Yuqing; Li, Meiling; Xu, Fangting] Dongtian Engn Consulting Co Ltd, Changsha 410205, Hunan, Peoples R China.

[Li, Linshenzhang; Chen, Yaoning; Li, Meiling; Liu, Yihuan; Xu, Fangting; Yan, Haoqin; Chen, Li] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Peoples R China.

[Chen, Yaoning; Liu, Yihuan; Yan, Haoqin; Chen, Li] Hunan Univ, Key Lab Environm Biol & Pollut Control, Minist Educ, Changsha 410082, Peoples R China.

[Chen, Yanrong] Hunan Univ Technol & Business, Sch Resource & Environm, Changsha 410205, Peoples R China.

通讯机构：

[Yaoning Chen] C

College of Environmental Science and Engineering, Hunan University, Changsha 410082, China<&wdkj&>Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China

语种：

英文

关键词：

Sludge biochar;Manganese dioxide;AOPs;Peroxymonosulfate;Methylene blue

期刊：

Journal of Water Process Engineering

ISSN：

2214-7144

年：

2022

卷：

页码：

102864

DOI：

10.1016/j.jwpe.2022.102864

基金类别：

National Natural Science Foundation of China [51979104, 42071122]; Natural Science Foundation of Hunan Province, China [2020JJ5019, 2021JJ30080, 2021JJ50152]; Research Foundation of Education Department of Hunan Province [21B0715, 20A089, 19B097]; Hunan Province Engineering &Technology Research Center for Rural Water Quality Safety [2019TP2079]

机构署名：

本校为第一机构

院系归属：

市政与测绘工程学院

摘要：

In this study, sludge biochar (SBC) was prepared by pyrolysis method, MnO2 and MnO2@SBCs with different MnO2/SBC mass ratios (3%, 5%, 10% and 20%) were synthesized by co-precipitation method. The catalytic performance was examined by activating peroxymonosulfate (PMS) for methylene blue (MB) degradation. MB can be completely removed within 30 min when the mass ratio of MnO2/SBC is greater than 5% and the degradation kinetics of MB is more in line with the pseudo-first-order kinetic model in the MnO2@SBC/PMS system. Besides, the pseudo-first-ord...

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Modification of sludge biochar by MnO2 to degrade methylene blue: Synergistic catalysis and degradation mechanisms

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