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用硅烷偶联剂KH-570对二氧化钛光催化剂进行了改性,制备了一种新型光催化剂.以苯作为模拟气体,在静态反应装置中考察了该催化剂的光催化性能.结果表明,KH-570能显著提高二氧化钛对气相苯的光催化降解性能,其转化率是纯二氧化钛的2·5倍.采用红外光谱和X射线光电子能谱对催化剂进行了表征.
A novel photocatalyst was prepared by modifying the titanium dioxide photocatalyst with a silane coupling agent KH-570.The photocatalytic activity of the photocatalyst was investigated in a static reactor using benzene as a simulated gas.The results showed that KH- 570 can remarkably enhance the photocatalytic degradation performance of titania on gaseous benzene with a conversion rate of 2.5 times that of pure titanium dioxide.The catalysts were characterized by FT-IR and X-ray photoelectron spectroscopy.