Perdisulfate-assisted advanced oxidation of 2,4-dichlorophenol by bio-inspired iron encapsulated biochar catalyst
文献类型：期刊论文
| 作者 | Wang, Yangyang3,4; Wang, Lei3,4; Zhang, Yalei5; Mao, Xuhui1; Tan, Wenbing3; Zhang, Yali6; Wang, Xiaoshu2,4; Chang, Ming3; Guo, Ruonan3; Xi, Beidou3 |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2021-06-15 |
| 卷号 | 592页码:358-370 |
| ISSN号 | 0021-9797 |
| 关键词 | Bio-inspired catalyst Fe?BC Micro-electrolysis 2 4-dichlorophenol removal Advanced oxidation processes |
| DOI | 10.1016/j.jcis.2021.02.056 |
| 通讯作者 | Wang, Lei(wangleicraes@163.com) |
| 英文摘要 | To improve advanced oxidation processes (AOPs), bio-inspired iron-encapsulated biochar (bio-inspired Fe?BC) catalysts with superior performance were prepared from iron-rich biomass of Iris sibirica L. using a pyrolysis method under anaerobic condition. The obtained compounds were used as catalysts to activate perdisulfate (PDS) and then degradate 2,4-dichlorophenol (2,4-DCP), and synthetic iron-laden biochar (synthetic Fe-BC) was used for comparison. The highest removal rate of 2,4-DCP was 98.35%, with 37.03% of this being distinguished as the contribution of micro-electrolysis, greater than the contribution of adsorption (32.81%) or advanced oxidation (28.51%). The high performance of micro-electrolysis could be attributable to the formation of Fe (Iron, syn) and austenite (CFe15.1) with strong electron carrier at 700 ?C. During micro-electrolysis, Fe2+ and electrons were gradually released and then used as essential active components to enhance the AOPs. The slow-releasing Fe2+ (K = 0.0048) also inhibited the overconsumption of PDS (K = -0.00056). Furthermore, the electrons donated from Fe?BC-4 were able to activate PDS directly. The electrons were enriched by the porous structure of Fe?BC-4, and the formation of the -C-O-Fe bond in the p-electron system could also accelerate the electron transfer to activate PDS. Similar reactive oxygen species (ROS) were identified during the micro-electrolysis and AOPs, leading to similar degradation pathways. The higher does concentration of center dot O2? generated during micro-electrolysis than during the AOPs also led to a greater dechlorination effect. (c) 2021 Elsevier Inc. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[51908375] ; Guangxi innovation research team project[2018GXNSFGA281001] ; National Key Research and Development Program[2019YFC0408602] ; National Key Research and Development Program[2019YFC1906704] ; Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control[1901K001] ; Tianjin Natural Science Foundation[18JCQNJC77300] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| WOS记录号 | WOS:000634142400009 |
| 资助机构 | National Natural Science Foundation of China ; Guangxi innovation research team project ; National Key Research and Development Program ; Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control ; Tianjin Natural Science Foundation |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/162040]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Lei |
| 作者单位 | 1.Wuhan Univ, Sch Resource & Environm Sci, Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430072, Peoples R China 2.Shenzhen BeiYu Environm Technol Co Ltd, Shenzhen 518063, Peoples R China 3.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China 4.Shenzhen Polytech, Sch Construct & Environm Engn, Shenzhen 518055, Peoples R China 5.Tongji Univ, Sch Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China 6.Chinese Acad Sci, Ctr Chinese Agr Policy, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yangyang,Wang, Lei,Zhang, Yalei,et al. Perdisulfate-assisted advanced oxidation of 2,4-dichlorophenol by bio-inspired iron encapsulated biochar catalyst[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2021,592:358-370. |
| APA | Wang, Yangyang.,Wang, Lei.,Zhang, Yalei.,Mao, Xuhui.,Tan, Wenbing.,...&Xi, Beidou.(2021).Perdisulfate-assisted advanced oxidation of 2,4-dichlorophenol by bio-inspired iron encapsulated biochar catalyst.JOURNAL OF COLLOID AND INTERFACE SCIENCE,592,358-370. |
| MLA | Wang, Yangyang,et al."Perdisulfate-assisted advanced oxidation of 2,4-dichlorophenol by bio-inspired iron encapsulated biochar catalyst".JOURNAL OF COLLOID AND INTERFACE SCIENCE 592(2021):358-370. |
入库方式： OAI收割
来源：地理科学与资源研究所
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