P25对TiO_2镀膜光催化活性的影响  

Effects of Mixing p25 into the Sol-gel on Photocatalytic Activity of Titania Film

作　　者：余薪萍[1] 李文奇[2] 李玉娟[3] 张峰[4] 郝桂玲[2] 

机构地区：[1]天津农学院机电工程系,天津300384 [2]中国水利水电科学研究院,北京100038 [3]中国农业大学,北京100083 [4]中国地质大学(北京)水资源与环境学院,北京100083

出　　处：《南水北调与水利科技》2010年第2期80-82,共3页South-to-North Water Transfers and Water Science & Technology

基　　金：国家"十一五"科技支撑项目:微污染水处理技术研究与装置开发(2006BAD01B03)

摘　　要：通过向钛酸四正丁酯溶胶中添加纳米级TiO2粉末(P25),来提高煅烧TiO2镀层的光催化活性。用不锈钢丝网作为煅烧TiO2镀层载体,以甲基橙降解效果来衡量TiO2镀层的光催化活性。实验结果表明,当溶胶中P25添加量为1g/L、镀膜次数为4次时,镀层光催化活性达到最大,150min内甲基橙降解率达到69.8%。For enhancing the photocatalytic activity of coated Titania, nano Titania powder （P25） was mixed into sol made from Tetrabutyl titanate. As a photocatalyst carrier, stainless steel net was used. The effect of the photocatalytic film on decomposition of methyl orange was examined. As the results, the degradation efficiency of methyl orange reached the vertex 69. 8%0 in 150 minutes while the dosage of P25 was lg/L and coated the catalyst film on the stainless steel net four times.

关 键 词：光催化剂 P25 溶胶凝胶法 甲基橙 二氧化钛 

分 类 号：O643.36[理学—物理化学]