空气中微量苯的光催化降解研究

Study on Photocatalytic Degradation of Minim Benzene in Gas Phase

选取硫酸钛沸腾回流水解法制备二氧化钛粉体并用于光催化降解空气中的微量苯。通过试验确定出二氧化钛的最佳制备条件;考察了二氧化钛载体对其光催化活性的影响.结果表明以吸附性强的载体(如活性炭)负载二氧化钛的光催化剂的催化降解效果较好.

TiO2 powders were prepared by forced hydrolysis of boiling reflux conditions and with which photocatalytic degraded minim benzene in gas phase, The optimum conditions of the preparation of TiO2 powders were ascertained through the experiments; The effects of carrier on photocatalytic activity of TiO2 were examined. The results showed that the TiO2 photocatalyst which was loaded by the carrier （such as actived carbon） with high activity of adsorption had the better effects on photocatalytic degradation.