文献类型：期刊文献

中文题名：纳米SiO_2/TiO_2/GF复合光催化膜制备及其光催化活性

英文题名：Synthesis and Photocatalytic Characterization of Nano-SiO_2/TiO_2/GF Film

作者：詹天珍[1];李秀军[1];杨玉飞[1]

机构：[1]华东理工大学石油化工学院化工系,上海201512

年份：2006

卷号：35

期号：1

起止页码：22

中文期刊名：当代化工

外文期刊名：Contemporary Chemical Industry

收录：CSTPCD

语种：中文

中文关键词：二氧化钛;二氧化硅;甲醛

外文关键词：titania; silica; formaldehyde

摘要：使用溶胶凝胶法制备了二氧化硅/二氧化钛/玻璃纤维体系复合催化膜(SiO2/TiO2/GF),研究了影响成膜的主要因素(PEG添加量、焙烧温度、溶胶特性等)的条件下SiO2/TiO2/GF的特性。采用气相甲醛对SiO2/TiO2/GF体系催化膜的光催化效率进行了评估。研究表明在n(钛酸四丁酯)∶n(水)=1∶1的时候,聚乙二醇(PEG)添加为10 g/L,当煅烧温度在500℃时候,SiO2/TiO2/GF膜光催化效率最高。在停留时间为21 s、12 s、9 s时,反应动力学常数分别为0.041 0、0.049 8和0.049 8 mol/m3.min。
The SiO2/TiO2/CF film has been successfully synthesized by using sol-gel reaction. The photocatalytic characters of SiO2/TiO2/GF film have been studied in term of different factors such as concentration of PEG, temperature and so on. The photodegradation of gaseous fommldchyde has been examined to assess the efficiency of SiO2/TiO2/GF film. Resohs show that the best conditions are , r（Tetrabutyl tltania/water） is 1, concentration of PEG is 10 g/L, temperature is 500 T：o （the rate constant of Langmuir- Hinshelwood equation） is respective 0.041 0, 0.049 8 and 0.049 8 mol/m^3 min based on different reaction time 21 s,12 s,9 s.