液相污染物降解中TiO_2光催化性能的影响因素  

Influencing factors on the photocatalytic properties of TiO_2 in the degradation of liquid pollutants

作　　者：吴丰[1] 陈迎刚 刘恩周[1] 张倩[1] 何奇[1] 侯文倩[1] 樊君[1] 

机构地区：[1]西北大学化工学院,陕西西安710069 [2]西安西化氯碱化工有限责任公司,陕西西安710077

出　　处：《应用化工》2011年第7期1254-1257,1270,共5页Applied Chemical Industry

基　　金：国家自然科学基金资助项目(20876125);陕西省自然基金资助项目(2010JZ002);高等学校博士点基金资助项目(20096101110013);西北大学研究生创新基金资助项目(09YJC24;09YJC27)

摘　　要：TiO2光催化剂的改性、光催化反应器的设计以及操作参数等影响着TiO2在降解液相污染物时的光催化性能。综述了TiO2改性的各种机理,指出了反应器设计面临的难题,探讨了pH、温度、溶氧量、TiO2用量、污染物浓度、光强度等操作参数对催化性能的影响。最后,展望了TiO2光催化的发展趋势。During the degradation of liquid pollutants,factors such as modification of TiO2,the design of photocatalysis reactors,and operation parameters had great influence on photocatalytic properties of TiO2.The main mechanisms of TiO2 modification was summarized,the problems on reactor designs were pointed out,the effect of operation parameters including pH,temperature,dissolved oxygen,quantity of TiO2,concentration of pollutants,light intensity on catalytic properties were discussed,and the development trend of TiO2 catalyst were prospected at last.

关 键 词：TIO2光催化 改性 操作参数 污染物降解 综述 

分 类 号：TQ426[化学工程] TQ034