V_2O_5-TiO_2-AlF_3/Al_2O_3催化臭氧化降解3,4,5,6-的性能四氯吡啶甲酸、苯乙酮和乙酸  

Catalytic Performance of V_2O_5-TiO_2-AlF_3/Al_2O_3 in Ozonation of 3,4,5,6-tetrachloropicolinic Acid, Acetophenone, Acetic Acid, Hydroxyl Radical in Aqueous Solution

作　　者：蒋燮强 蓝小飞 

机构地区：[1]杭州立佳环境服务有限公司,浙江杭州311199 [2]嘉兴市食品药品检验检测院,浙江嘉兴314001

出　　处：《广东化工》2016年第7期56-57,43,共3页Guangdong Chemical Industry

摘　　要：利用V_2O_5-TiO_2-AlF_3/Al_2O_3催化臭氧化体系降解了三种不同类型的有机物(杂环类化合物四氯吡啶甲酸、芳环类化合物苯乙酮和小分子乙酸)。结果发现,该催化剂均能明显提高臭氧化降解三种不同有机物的效率,且体系均遵循羟基自由基的反应机理。这说明该催化剂在臭氧化降解三种不同类型的有机物过程中均显示出了较好的活性,这对建立降解效率具有广普性的臭氧类高级氧化技术具有重要的意义,该结果将会有力推动臭氧化技术在实际废水处理中的应用意义深远。The catalytic activity of V2O5-TiO2-AlF3/Al2O3 was evaluated in ozonation of three different types of organic compounds, including 3,4,5,6-tetrachloropicolinic acid, acetophenone, acetic acid, hydroxyl radical in aqueous solution under pH=2.8. The result showed that the catalyst could all improve the efficiencies of ozonation of these three typical organic compounds. The test of tert-butyl alcohol addition indicated that the catalytic ozonation of three organic pollutants all followed hydroxyl radical-type mechanism. The above results demonstrate that the catalyst has good activity in ozonation of three organic compounds. This fact is highly significant for extending application of advanced oxidation technology in wastewater treatment.

关 键 词：催化臭氧 四氯吡啶甲酸 苯乙酮 乙酸 羟基自由基 

分 类 号：X703[环境科学与工程—环境工程]