江汉大学学报：自然科学版2012，Vol.40Issue(1)：61-64,4.
TiO_2/SiO_2复合材料的制备及其光催化性能的研究
Study on Preparation and Photocatalytic Properties of TiO_2/SiO_2 Composite Powders
摘要
Abstract
TiO2/SiO2 composite powders were prepared using two-step sol-gel method,with tetrabutyl titanate and tetraethyl orthosilicate as the main raw materials,and its photo catalytic properties for degradation of active brilliant red X-3B solution were researched through Ti∶Si molar ratio,calcined temperature,initial concentration and photocatalyst dosage.The results indicated that the TiO2/SiO2 composite powders of n（Ti）∶n（Si）∶6∶1,calcined at 500 ℃ had the best photo catalytic activity,and the photocatalytic activity of the composite were higher than that of pure TiO2 under the same conditions;moreover,it was found that degradation rate of active brilliant red X-3B solution decreased with its initial concentration increasing,and the optimum dosage of composite photocatalysts was 1.6 g/L when the initial concentration of active brilliant red X-3B solution was 25 mg/L.关键词
TiO2/SiO2/溶胶-凝胶法/活性艳红X-3B/光催化降解Key words
titania（TiO2）/silica（SiO2）/sol-gel method/active brilliant red X-3B/photo catalytic degradation分类
通用工业技术引用本文复制引用
曹春华,陈春华..TiO_2/SiO_2复合材料的制备及其光催化性能的研究[J].江汉大学学报：自然科学版,2012,40(1):61-64,4.基金项目
湖北省科技攻关计划项目 （）
