【摘要】 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.更多还原

【Abstract】 The photocatalytic activity of TiO₂ for the decomposition of gaseous benzene in a batch reactor can be greatly improved by modifying TiO₂ with 3-（trimethoxysilyl）propylmethacrylate.The photocatalyst prepared was characterized by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy （XPS）. The XPS spectrum shows that the binding energy of Ti 2p for the modified TiO₂ shifted to a low value. The modified TiO₂ has a photocatalytic activity 2.5 times that of pure TiO₂.更多还原