负载型二氧化钛复合催化剂对光催化水泥基材料的降解效率的影响  

Effect of Supported TiO2 Composite Catalyst on Photocatalytic Degradation Efficiency of Cement-Based Materials

作　　者：曹梦强[1,2] CAO Mengqiang(Department of Transportation and Municipal Engineering,Sichuan College of Architectural Technology,Chengdu 610399,China;Deyang Key Laboratory of Building and Bridge Structure Engineering,Deyang 618000,China)

机构地区：[1]四川建筑职业技术学院交通与市政工程系 [2]德阳市建筑与桥梁结构工程重点试验室

出　　处：《粉煤灰综合利用》2019年第6期51-54,共4页Fly Ash Comprehensive Utilization

摘　　要：以水泥基材料为载体,负载沸石/二氧化钛复合材料,制备了高效光催化水泥基材料。以丙酮为降解目标,研究了沸石/二氧化钛复合催化剂的负载方式和负载量对光催化水泥基材料降解效率的影响。同时采用SEM-EDS表征了光催化水泥基的微观结构。结果表明:喷涂型的光催化水泥基材料的降解效率最高,随着催化剂负载量的增加,降解效率升高,喷涂10%沸石/二氧化钛催化剂的试样对丙酮的降解率高达57.2%,经过多次重复试验,光催化水泥基材料的降解性能稳定。Zeolite/Ti02 composite was loaded on the surface of cement substrate to prepare photocatalytic cem ent-based material with high degradation efficiency.Acetone was chosen as the target pollutant.The paper studied The effect of loading methods and addition amount of the Zeolite/Ti02 composite on degradation efficiency.SEM-EDS was applied to the study of the m icrostructure of the photocatalytic cem ent-based material.The results shows that the sample of spray type exhibited the highest degradation efficiency.The degradation efficiency increased with the growth of addition amount of Zeolite/Ti02 composite,the acetone degradation rate of the sample with the catalyst addition of 10%reached up to 57.2%.After repeated tests,the photocatalytic cem ent-based material displayed good stability.

关 键 词：光催化水泥基材料 二氧化钛 沸石 丙酮 

分 类 号：TU528.042[建筑科学—建筑技术科学]