Fe3O4-MnO2/Gh的制备及其对氯乙酸的降解研究  

Preparation of Fe3O4-MnO2/Gh and its degradation of chloroacetic acid

作　　者：张程蕾 滕厚开[1,2] 韩恩山 谢陈鑫[2] 焦梦瑶 Zhang Chenglei;Teng Houkai;Han Enshan;Xie Chenxin;Jiao Mengyao(Hebei University of Technology,Tianjin 300401,China;CenerTech Tianjin Chemical Research and Design Institute Co.,Ltd.,Tianjin 300131,China)

机构地区：[1]河北工业大学,天津300401 [2]中海油天津化工研究设计院有限公司,天津300131

出　　处：《工业水处理》2021年第1期43-48,共6页Industrial Water Treatment

基　　金：国家科技重大专项(2017ZX07017-002-01,2017ZX07017-002-02)。

摘　　要：通过水热法制备了磁性复合材料Fe3O4-MnO2/Gh,并通过XRD、SEM、VSM和XPS等技术对其进行了表征分析。将Fe3O4-MnO2/Gh作为非均相电-Fenton催化剂应用于电催化体系,考察了非均相电-Fenton体系对氯乙酸的降解效果。结果表明,在Fe3O4和MnO2的协同作用下,Fe3O4-MnO2/Gh非均相电-Fenton体系实现了对氯乙酸的高效降解。在催化剂投加量为0.8 g/L、电流密度为8 mA/cm^2,pH为5,反应时间为45 min,O2流量为200 mL/min时,其TOC去除率可达80.68%,有机氯的转化率为98%,且该催化剂具有较高的稳定性。The magnetic composite Fe3O4-MnO2/Gh was prepared by hydrothermal method and characterized by XRD,SEM,VSM and XPS.Fe3O4-MnO2/Gh as heterogeneous electro-Fenton catalyst was applied in the electrocatalytic system,and its degradation on chloroacetic acid was investigated.The results showed that the efficient degradation of chloroacetic acid was achieved in the Fe3O4-MnO2/Gh heterogeneous electro-Fenton system under the synergistic action of Fe3O4 and MnO2.The TOC removal efficiency of chloroacetic acid was up to 80.68%and organic chlorine conversion reach 98% at the catalyst dosage 0.8 g/L,current density 8 mA/cm^2,pH 5,reaction time 45 min,O2 flow rate 200 mL/min,and the catalyst has high stability.

关 键 词：石墨烯 非均相电-Fenton 氯乙酸 

分 类 号：X703.1[环境科学与工程—环境工程]