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采用溶胶-凝胶法,将Keggin结构的饱和磷钨酸、硅钨酸复合到二氧化钛薄膜中,合成出POM/TiO2复合光催化剂.红外光谱表明在复合膜中,多酸仍保持其基本结构不变.详细考察了催化剂种类、催化剂用量和反应体系等因素对苯胺的光催化降解反应的影响.
The POM / TiO2 composite photocatalyst was synthesized by sol-gel method using the saturated phosphotungstic acid and silicotungstic acid with Keggin structure to synthesize the POM / TiO2 composite photocatalyst. The infrared spectra showed that the polyacid still retained its basic structure in the composite membrane The effect of catalyst type, amount of catalyst and reaction system on the photocatalytic degradation of aniline was investigated in detail.