Efficient Fenton-like treatment of high-concentration chlorophenol wastewater catalysed by Cu-Doped SBA-15 mesoporous silica
文献类型：期刊论文
| 作者 | Hu, Huanting; Miao, Kangkang; Luo, Xiaolin; Guo, Sifan; Yuan, Xueqin; Pei, Fei; Qian, Huaming; Feng, Guodong |
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2021 |
| 卷号 | 318 |
| 关键词 | ELECTROCATALYTIC HYDRODECHLORINATION BIMETALLIC OXIDES POROUS MATERIALS 4-CHLOROPHENOL DEGRADATION PERFORMANCE OXIDATION CARBON PD BIODEGRADATION |
| 英文摘要 | Effective treatment for industrial wastewater that contains high concentration of chlorophenols is urgent and indispensable for environmental governance and human health due to their nonbiodegradable, carcinogenic and cytotoxic properties. Four kinds of Cu-containing mesoporous silica materials were utilized to catalyse Fentonlike treatment of high-concentration chlorophenols wastewater (1.0 g L-1). All of chlorophenols in various water matrices could be oxidatively decomposed in 35 min with the catalysis of Cu-doped SBA-15. Cu-doped SBA-15 with a Cu/Si molar ratio of 0.133 had the best catalytic activity in the oxidative degradation of 4-chlorophenol with an apparent reaction rate constant of 0.170 min(-1) which was 1.3-3.6 times higher than those with other Cu-containing catalysts. After 300 min reaction, total organic carbon content of 4-chlorophenol solution declined continuously to 23.8% with an advisable utilization efficiency of H2O2 of 26.5%-68.4%. Electron spin resonance tests and quenching experiments demonstrated that Cu-doped SBA-15 had a selective catalytic activity in the decomposition of H2O2 into hydroxyl radicals which dominated the degradation of chlorophenols in wastewater. The redox of Cu(II)/Cu(I) in Cu-doped SBA-15 occurred efficiently, which could be attributed to chemical adsorption and electron transformation of organic molecular fragments onto Lewis acidic sites formed by the incorporation of Cu2+ ions in SBA-15. The biological toxicity of the treated 4-CP wastewater declined significantly in comparison with that of the original wastewater. Our work provided an effective way of the heterogeneous treatment of high-concentration chlorophenol wastewater. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21399]  |
| 专题 | 2021专题_期刊论文 |
| 作者单位 | 1.Luo, XL 2.Feng, GD (corresponding author), Baoji Univ Arts & Sci, Coll Chem & Chem Engn, Key Lab Adv Mol Engn Mat, Baoji 721013, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Hu, Huanting,Miao, Kangkang,Luo, Xiaolin,et al. Efficient Fenton-like treatment of high-concentration chlorophenol wastewater catalysed by Cu-Doped SBA-15 mesoporous silica[J]. JOURNAL OF CLEANER PRODUCTION,2021,318. |
| APA | Hu, Huanting.,Miao, Kangkang.,Luo, Xiaolin.,Guo, Sifan.,Yuan, Xueqin.,...&Feng, Guodong.(2021).Efficient Fenton-like treatment of high-concentration chlorophenol wastewater catalysed by Cu-Doped SBA-15 mesoporous silica.JOURNAL OF CLEANER PRODUCTION,318. |
| MLA | Hu, Huanting,et al."Efficient Fenton-like treatment of high-concentration chlorophenol wastewater catalysed by Cu-Doped SBA-15 mesoporous silica".JOURNAL OF CLEANER PRODUCTION 318(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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