文献类型： 外文期刊
作者： Qian, Sheng 1 ; Shi, Fengmei 3 ; Wang, Zihao 1 ; Yu, Yifei 1 ; Lu, Hao 1 ; Jia, Zhen 1 ; Ma, Jun 4 ; Ma, Yuxin 1 ;
作者机构： 1.Heilongjiang Univ, Coll Civil Engn, Xidazhi Rd 74, Harbin 150080, Peoples R China
2.Heilongjiang Univ, Engn Res Ctr Rural Water Safety Heilongjiang Prov, Harbin 150080, Peoples R China
3.Heilongjiang Acad Agr Sci, Heilongjiang Acad Black Soil Conservat & Utilizat, Harbin 150086, Peoples R China
4.Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China
关键词： Al-PILC; Chlorine oxidation; Catalytic oxidation; Self -catalytic oxidation
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：12.2； 五年影响因子：11.9 ）
ISSN： 0304-3894
年卷期： 2024 年 476 卷
页码：
收录情况： SCI
摘要： Al-PILC was used to catalyze the chlorine oxidation of Mn(II) in aqueous solution. The effects of various catalysts, catalyst dosage, chlorine dosage, pH value, temperature and organic content on the oxidation process were investigated. Results show that 1.5 mg/L chlorine can quickly oxidize Mn(II) from 0.5 mg/L to less than 0.04 mg/ L with 10 mg/L Al-PILC. Using catalysts with higher porosity and higher SA, increase in chlorine concentration, increase in catalyst dosage, higher pH, and higher temperature can significantly enhance the rate of Mn(II) catalytic oxidation. The Mn(II) oxidation process includes the homogeneous oxidation, catalytic oxidation on the surface of the catalysts and self-catalytic oxidation produced by the newly produced MnOx. Al-PILC surface provides active sites for chlorine oxidation Mn(II) in the water, and also provides binding sites for the newly produced MnOx, which has higher catalytic activity and thus has an self-catalytic oxidation effect. The higher the porosity and SA of Al-PILC, the more catalytic oxidation active sites and loading sites, and the better the catalytic oxidation effect. The study promotes the understanding of chlorine catalyzed oxidation Mn(II) in aqueous
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