有色金属科学与工程2016,Vol.7Issue(2):67-72,6.DOI:10.13264/j.cnki.ysjskx.2016.02.012
银掺杂二氧化钛及其光催化性能研究
Preparation and photocatalytic properties of Ag doped TiO 2
摘要
Abstract
Ag doped TiO2 was synthesized by sol-gel method. The composite was characterized by X-ray diffraction(XRD), scanning electron microscope(SEM) , Fourier transform infrared spectoscopy(FT-IR), thermo-gravimetric and differential scanning calorimetric, and UV-Vis diffuse reflectance spectroscope (DRS). With methyl orange as the model pollutant, photocatalytic activity was studied to investigate the influence of different calcinations temperature and silver doped amount on the effect of photocatalysis. The results reveal that the photocatalytic activity of TiO2 under UV light and visible light are improved by Ag doped TiO2;and when the Ag doping amount is 1.00%, calcination temperature is 450℃, the amount of catalyst is 0.05 g, the Ag doped TiO2 degradation rate reaches 92.57 % under visible light for 4 h , which is 4.51 times higher than that of TiO2; the degradation rate reaches 84.54%under UV light for 2 h which is 2.27 times higher than that of TiO2 .关键词
溶胶-凝胶法/二氧化钛/银/光催化剂Key words
sol-gel method/titanium dioxide/Ag/photocatalyst分类
化学化工引用本文复制引用
黄瑞宇,罗序燕,赵东方,邓金梅,祝婷..银掺杂二氧化钛及其光催化性能研究[J].有色金属科学与工程,2016,7(2):67-72,6.基金项目
国家自然科学基金资助项目(51364014);2013年江西省级大学生创新创业训练计划项目 ()