石英表面自组装二氧化钛光催化材料  

Study on the preparation and application of self-assembled nanometer titanium dioxide photocatalyst on quartz

作　　者：王程[1] 龚文琪[1] 雷绍民[1] 郝骞[1] 熊毕华[1] 

机构地区：[1]武汉理工大学资环学院,湖北武汉430070

出　　处：《无机盐工业》2006年第7期35-38,共4页Inorganic Chemicals Industry

摘　　要：用γ-巯丙基三甲氧基硅烷对石英进行干法改性,用氧化剂将巯基氧化为磺酸基,通过静电自组装二氧化钛制备石英表面自组装二氧化钛光催化材料。用制备的光催化材料处理含偶氮染料废水4 h后,结果表明100℃焙烧得到的石英表面自组装二氧化钛光催化材料对偶氮染料废水的脱色率达到99.02%。其对偶氮染料有一定的吸附作用,但主要为降解作用。Surface modification was made on quartz with （ OCH3 ）2 Si （ CH2 ）2 SH by dry process. The radical of - SH was oxidized to - SO3 H and electrostatic self - assembled TiO2 was made on the surface of quartz. By this way the self - assembled TiO2 photocatalyst on quartz was prepared. Using this photocatalyst to treat wastewater containing azo dye for 4 h, the result showed that the decoloration rate of this wastewater could reach 99.02%. The main action of this photocatalyst on azo dye is degradation besides a certain adsorption.

关 键 词：石英 二氧化钛 光催化 偶氮染料 

分 类 号：TQ134.11[化学工程—无机化工]