硅酸盐通报2011，Vol.30Issue(4)：779-783,5.
SiO2/TiO2薄膜对水中腐殖酸降解及大肠杆菌灭活效果的研究
Study on Effect of SiO2/TiO2 Film on Photocatalytic Degradation of Humic Acid in Water and Inactivation of E.coli
摘要
Abstract
The SiO2/TiO2 powder was prepared by sol-gel method and its structures were characterized using XRD, TG-DTA and UV-vis. The as-prepared SiO2/TiO2 was loaded on glass using hot deposition method. Natural organic humic acid in water and typical strains E. Coli were chosen as represented objects in order to investigate the photocatalytic activity of SiO2/TiO2 film and its mechanism was suggested. Research show that SiO2/TiO2 film has high photocatalytic activity and antibacterial function. The introduction of silicon not only increases the band gap of catalyst, improving the redox ability of eh+ pairs, but also makes catalyst surface appeared more adsorption of oxygen in favor of e--h+ changing into · OH, which are useful for SiO2/TiO2 film photocatalytic degradation of organic matter and inactivated bacteria in water.关键词
SiO2/TiO2薄膜/腐殖酸/大肠杆菌/光催化Key words
SiO2/TiO2 film/humic acid/E. Coli/photocatalysis分类
化学化工引用本文复制引用
王韵芳,孙彦平..SiO2/TiO2薄膜对水中腐殖酸降解及大肠杆菌灭活效果的研究[J].硅酸盐通报,2011,30(4):779-783,5.基金项目
国家自然科学基金(No.20876104) （No.20876104）
