Fe_2O_3/TiO_2芬顿-光催化协同提高处理废水能力

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英文篇名：A Study on Fe_2O_3/TiO_2 Coking Wastewater by Fenton-photocatalysis 作者：李渊 ; 邵化旭 ; 刘利 英文作者：Li Yuan;Shao Huaxu;Liu Li;College of Chemical Engineering, North China University of Science and Technology; 关键词：光催化 ; 芬顿体系 ; Fe2O3/TiO2 ; 协同 英文关键词：photocatalysis;;Fenton system;;Fe2O3/TiO2;;coordination 中文刊名：中国环境管理干部学院学报 英文刊名：Journal of Environmental Management College of China 机构：华北理工大学化学工程学院; 出版日期：2019-03-11 09:30 出版单位：中国环境管理干部学院学报 年：2019 期：01 语种：中文; 页：72-76 页数：5 CN：13-1272/X ISSN：1008-813X 分类号：X703

摘要

通过高温煅烧制备复合光催化剂Fe_2O_3/TiO_2,加入H_2O_2构建芬顿-光催化协同体系,对有机废水进行深度降解处理。实验结果表明,Fe_2O_3含量为3%的复合光催化剂投加量1.0 g/L,H_2O_2浓度30 mmol/L,紫外光照射3 min,20 mg/kg亚甲基蓝溶液降解率为88.6%,比TiO_2单体活性提高5倍,芬顿体系3 min对MB几乎无降解,芬顿-光催化协同极大地提高了处理有机污染物的降解能力。紫外光照射20 min,能降解98.2%的20 mg/kg苯酚溶液,分别是单体TiO_2和芬顿体系活性的3倍和24.5倍。
        The composite photocatalyst Fe_2O_3/TiO_2 was prepared by high temperature calcination method, and the Fenton-photocatalytic synergistic system was constructed by adding H_2O_2 to deeply degrade the organic wastewater. The experimental results show that the degradation rate of20 mg/kg methylene blue solution was degraded by the composite photocatalyst with Fe_2O_3 content of 3% at the dosage of 1.0 g·L~(-1), H_2O_2 concentration of 30 mmol·L~(-1), UV irradiation and reaction for 3 min. It was 88.6%, which was 5 times higher than the activity of TiO_2 monomer. When it reacted for 20 min, it can degrade 98.2% of 20 mg/kg phenol solution, which was 3 and 24.5 times than that of monomer TiO_2 and Fenton reaction, respectively.

引文

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