pH-Dependent Structure-Activity Relationship of Polyaniline-Intercalated FeOCl for Heterogeneous Fenton Reactions | |
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 |
2019-12-24 | |
卷号 | 4期号:26页码:21945-21953 |
ISSN号 | 2470-1343 |
DOI | 10.1021/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. |
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关键词 | IRON OXYCHLORIDE ; HYDROXYL RADICALS ; BISPHENOL-A ; ORGANIC POLLUTANTS ; HYDROGEN-PEROXIDE ; DEGRADATION ; OXIDE ; MECHANISM ; OXIDATION ; CATALYSTS |
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 |
内容类型 | 期刊论文 |
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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