化工环保2011，Vol.31Issue(1)：82-85,4.
TiO2/凹凸棒土复合催化剂的制备及光催化降解活性大红
Preparation of TiO2/attapulgite composite catalyst and photocatalytic degradation of reactive scarlet
李志林 1安青珍1
作者信息
- 1. 河北大学,化学与环境科学学院,河北,保定,071002
- 折叠
摘要
Abstract
Using attapulgite as carrier and TiOSO4 as titanium source, the TiO2/attapulgite composite catalyst with 10 nm of anatase TiO2 particle was prepared by ultrasonic dispersion-reprecipitation process. The composite catalyst was characterized by XRD, TEM and X-ray energy spectrometer. The optimum preparation conditions are as follows: mass ratio of attapulgite to TiO2 1 ∶ 3. 0 and calcination temperature 450 ℃. When the initial mass concentration of the reactive scarlet solution is 30 mg/L,the dosage of the TiO2/attapulgite composite catalyst is 2 g/L and the reaction time of degradation under ultraviolet is 40 min, the degradation rate of reactive scarlet is 98. 2％ , which is far higher than that on TiO2. The degradation rate of reactive scarlet is 87. 0％ after irradiation under sunlight with the composite catalyst for 160 min.关键词
光催化剂/凹凸棒土/二氧化钛/活性大红/废水处理分类
化学化工引用本文复制引用
李志林,安青珍..TiO2/凹凸棒土复合催化剂的制备及光催化降解活性大红[J].化工环保,2011,31(1):82-85,4.
