Preparation Conditions on Adsorption and Photocatalytic Activity of TiO2 Particles Prepared by Sol-gel Method
The amounts of ethanol,HCl and H2O,and also calcination conditions during sol-gel process of preparing TiO2 photocatalyst were investigated.Methyl orange adsorption on TiO2 prepared using different sol compositions is not more than 4% by varying the amount of ethanol,HCl and H2O.The photocatalytic degradation is related to sol composition,and the optimal composition is composed of 10 ml ethanol,1.0 ml H2O,and 0.1 ml HCl.Calcination temperature and time are also important in TiO2 preparation.The TiO2 particle prepared at 500 ℃ for 3 h has the optimal photocatalytic activity.In the irradiation time range up to 100 min,photocatalytic degradation rate constantly increases up to 94.2%.
TiO2 Photocatalysis Methyl orange Sol-gel
Wenjie Zhang Yang Yu
School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China
国际会议
重庆
英文
131-135
2011-06-23（万方平台首次上网日期，不代表论文的发表时间）