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THE OXIDATIVE DEGRADATION OF 2-MERCAPTOBENZOTHIALZOLE BY DIFFERENT MANGANESE DIOXIDES

文献类型： 外文期刊

作者： Dong, Jun 4 ; Zhang, Li-jia 3 ; Liu, Hui 2 ; Liu, Cheng-shuai 1 ; Gao, Yuan-xue 1 ; Sun, Li-na 4 ;

作者机构： 1.Guangdong Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Agr Environm Pollut Integrated, Guangzhou 510650, Guangdong, Peoples R China

2.S China Inst Environm Sci, MEP, Guangzhou 510655, Guangdong, Peoples R China

3.Sci & Technol Lib Guangdong, Guangzhou 510070, Guangdong, Peoples R China

4.Univ Elect Sci & Technol China, Zhongshan Inst, Zhongshan 528402, Peoples R China

关键词： MBT;oxidation;organic pollutants;manganese dioxide;degradation

期刊名称：FRESENIUS ENVIRONMENTAL BULLETIN （ 影响因子：0.489； 五年影响因子：0.479 ）

ISSN： 1018-4619

年卷期： 2010 年 19 卷 8A 期

页码：

收录情况： SCI

摘要： 2-Mercaptobenzothiazole (MBT) has been detected in wastewater and surface water in recent years, and its removal by minerals is an important issue. In this study, the degradation of MBT by different manganese dioxides was investigated with batch experiments. The physicochemical properties, including specific surface area (BET), average oxidation state (AOS), reduction potential (Eh), and point of zero charge (pH(PZC)) of the manganese dioxides, were also evaluated. The results showed that MBT can be efficiently degraded within four minutes. More importantly, the oxidative activities of different manganese dioxides were influenced by a combination of factors including BET, Eh, AOS, and pH(pzc). Manganese dioxides synthesized by the comproportionation method (CM) or liquid-phase oxidation method (OM) exhibited oxidative activities for MBT degradation with the order of delta-MnO(2) (CM) > alpha-MnO(2) (CM) > alpha-MnO(2) (OM) > gamma-MnO(2) (OM) > beta-MnO(2) (OM). The degradation kinetics based on MBT initial concentration, manganese dioxide dosages and pH values were also evaluated. Lower initial MBT concentration and pH, and higher manganese dioxide dosages can accelerate the degradation rate. The thermodynamical results showed that the apparent activation energy (E(a)) was negatively correlated with MBT degradation rates. The results in this study may provide penetrated insights for understanding the transformation and fate of organic pollutants with the presence of manganese dioxides in environment.

  • 相关文献

[1]Relationship between oxidative degradation of 2-mercaptobenzothiazole and physicochemical properties of manganese (hydro)oxides. Liu, C. S.,Zhang, L. J.,Wu, C. A.,Li, F. B.,Feng, C. H.,Liu, C. S.,Li, X. Z.. 2009

[2]The oxidative degradation of sulfadiazine at the interface of alpha-MnO2 and water. Zhang, Lijia,Liu, Chengshuai,Zhuang, Li,Zhou, Jianmin,Dong, Jun,Sun, Lina,Li, Yongtao,Zhang, Lijia. 2009

[3]The oxidative transformation of sodium arsenite at the interface of alpha-MnO2 and water. Li, Xiu-juan,Liu, Cheng-shuai,Li, Fang-bai,Zhang, Li-jia,Liu, Chuan-ping,Li, Xiu-juan,Zhou, Yong-zhang,Li, Yong-tao,Zhang, Li-jia,Li, Xiu-juan. 2010

[4]Oxidation of (-)-epicatechin is a precursor of litchi pericarp enzymatic browning. Liu, Liang,Xu, Yujuan,Zhang, Mingwei,Xiao, Gengsheng,Cao, Shaoqian,Deng, Qianchun.

[5]Arsenite oxidation and removal driven by a bio-electro-Fenton process under neutral pH conditions. Wang, Xiang-Qin,Liu, Chuan-Ping,Yuan, Yong,Li, Fang-bai.

[6]The effect of iron oxides and oxalate on the photodegradation of 2-mercaptobenzothiazole. Liu, CS,Li, FB,Li, XM,Zhang, G,Kuang, YQ.

[7]Degradation of Pentachlorophenol by Potato Polyphenol Oxidase. Hou, Mei-Fang,Zhang, Wei-De,Hou, Mei-Fang,Tang, Xiao-Yan,Liao, Lin,Wan, Hong-Fu,Tang, Xiao-Yan.

[8]Effect of oxalate on photodegradation of bisphenol a at the interface of different iron oxides. Li, F. B.,Li, X. Z.,Liu, C. S.,Li, X. M.,Liu, T. X..

[9]Microbial fuel cell with an azo-dye-feeding cathode. Liu, Liang,Li, Fang-bai,Liu, Liang,Feng, Chun-hua,Li, Xiang-zhong,Liu, Liang.

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