低温制备TiO_2对碱性品红光催化性能的研究  

Low temperature preparation of TiO_2 on the Fuchsin photocatalytic properties

作　　者：崔义慧 唐梦泽[1] 李玲美[1] 李光哲[2] 

机构地区：[1]沈阳师范大学化学化工学院,沈阳110034 [2]沈阳师范大学生命科学学院,沈阳110034

出　　处：《沈阳师范大学学报（自然科学版）》2016年第1期70-73,共4页Journal of Shenyang Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目(C0310)

摘　　要：研究溶胶凝胶法低温制备TiO_2及掺杂型光催化剂。以碱性品红为模拟降解对象,在不同条件下对碱性品红进行紫外光催化降解、吸附实验。分别考察凝胶温度、加水量、氨水量、不同Si、Fe掺杂量对光催化效果的影响。实验结果表明,凝胶温度为70℃,钛水比为1∶32,钛和氨水比为1∶0.2时,对碱性品红的降解效果较好;通过Si、Fe掺杂的光催化剂对碱性品红的降解效果比二氧化钛的明显。实验致力于探索在较低温度下制备对碱性品红的可见光吸附和紫外光催化降解效果最好的二氧化钛的最佳条件。TiO2 and doped photocatalyst prepared by sol-gel method at low temperature were studied.UV photocatalytic degradation and adsorption experiments of Basic Fuchsin were conducted under different conditions with its serving as simulated degradation object.The effects of the gel temperature,the amount of water,the amount of water,different Si and Fe doping on the photocatalytic efficiency were investigated.The results showed that the better degradation effect on basic fuchsin was obtained when the gel temperature is 70℃,titanium water ratio was 1∶0.2,titanium and ammonia ratio was 1∶0.2.The effect on basic fuchsin degradation by Si,Fe-doped photocatalyst was more obvious than that of TiO2.The aim was to explore the best optimum conditions for the effect of TiO2 prepared at low temperature on the visible light absorption and UV photocatalytic degradation of basic fuchsin.

关 键 词：溶胶凝胶法 二氧化钛 光催化剂 吸附 降解 

分 类 号：X52[环境科学与工程—环境工程]