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pH-Dependent Structure-Activity Relationship of Polyaniline-Intercalated FeOCl for Heterogeneous Fenton Reactions

文献类型：期刊论文

作者Wang, Jinling1,2; Tsai, Meng-che3; Lu, Zhenying1; Li, You4,5; Huang, Guangtuan1; Wang, Hualin1,2; Liu, Honglai1,2; Liao, Xiaoyong4; Hwang, Bing-joe3; Neumann, Anke6
刊名ACS OMEGA
出版日期2019-12-24
卷号4期号:26页码:21945-21953
ISSN号2470-1343
DOI10.1021/acsomega.9b03008
通讯作者Liu, Honglai(hlliu@ecust.edu.cn) ; Yang, Xuejing(xj.yang@ecust.edu.cn)
英文摘要In this study, we prepared polyaniline-intercalated iron oxychloride (FeOCl-PANI) by aqueous intercalation method to use it as a Fenton-like catalyst that was then assessed in terms of behavior of intercalation, structural evolution, Fenton-like activity, and catalytic mechanism. Gel-permeation chromatography demonstrated that the molecular weight (polymerization extent) of polyaniline fragment gradually increased with the increase of intercalation time. Interestingly, the polyaniline-intercalated materials with varying intercalation times exhibited distinctly different Fenton-like activity trends under acidic (pH 4) and neutral (pH 7) conditions. Specifically, Fenton-like degradation is favored with a shorter intercalation time under acidic conditions, while it is preferred with a longer intercalation time under neutral pH values. We propose that an additional pH-dependent charging of FeOCl-PANI with different polymerization extents of the intercalated polyaniline promotes a switch in the contaminant degradation pathway, leading to opposite trends in observable activity at different pH values. As a class of typical layered metal chalcogenohalides (MeAX, A = O, S, Se, X = CI, Br, I), FeOCl-PANI is expected to provide new insights into the development of other similar materials. This work could be useful to further understand the H2O2 heterogeneous activation behavior, which is of significance to the application of iron-based heterogeneous Fenton oxidation.
WOS关键词IRON OXYCHLORIDE ; HYDROXYL RADICALS ; BISPHENOL-A ; ORGANIC POLLUTANTS ; HYDROGEN-PEROXIDE ; DEGRADATION ; OXIDE ; MECHANISM ; OXIDATION ; CATALYSTS
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23010400] ; National Natural Science Foundation of China[21876049] ; National Natural Science Foundation of China[91834301]
WOS研究方向Chemistry
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000504635000033
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/131049]  
专题中国科学院地理科学与资源研究所
通讯作者Liu, Honglai; Yang, Xuejing
作者单位1.ECUST, Natl Engn Lab Ind Wastewater Treatment, Shanghai 200237, Peoples R China
2.ECUST, State Key Lab Chem Engn, Shanghai 200237, Peoples R China
3.Natl Taiwan Univ Sci & Technol, Dept Chem Engn, NanoElectrochem Lab, Taipei 106, Taiwan
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing Key Lab Environm Damage Assessment & Reme, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Newcastle Univ, Sch Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
推荐引用方式
GB/T 7714		 Wang, Jinling,Tsai, Meng-che,Lu, Zhenying,et al. pH-Dependent Structure-Activity Relationship of Polyaniline-Intercalated FeOCl for Heterogeneous Fenton Reactions[J]. ACS OMEGA,2019,4(26):21945-21953.
APA Wang, Jinling.,Tsai, Meng-che.,Lu, Zhenying.,Li, You.,Huang, Guangtuan.,...&Yang, Xuejing.(2019).pH-Dependent Structure-Activity Relationship of Polyaniline-Intercalated FeOCl for Heterogeneous Fenton Reactions.ACS OMEGA,4(26),21945-21953.
MLA Wang, Jinling,et al."pH-Dependent Structure-Activity Relationship of Polyaniline-Intercalated FeOCl for Heterogeneous Fenton Reactions".ACS OMEGA 4.26(2019):21945-21953.

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来源：地理科学与资源研究所

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