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中文摘要：
采用溶胶-凝胶法在不同温度煅烧制得TiO2，光还原沉积法进行载铂，浸渍法使伊红-Y负载在Pt-TiO2表面，制得系列染料敏化的EosinY-Pt-TiO2可见光光催化剂。以可见光光催化制氢为探针反应考察了制备的催化剂的活性，发现350℃煅烧的Eosin Y-P-TiO2峨可见光光催化活性最好。通过XRD、BET、FT-IR、UV-Vis漫反射等手段对样品进行了表征，发现伊红-Y的敏化扩展了TiO2的可见光响应范围，使其在400～600hm有很强的吸收峰；随着TiO2煅烧温度的降低，比表面积不断增大，表面羟基的数量也增加，吸附伊红-Y的量也不断增加，因此EosinY-Pt-TiO2可见光光催化活性也相应提高。
英文摘要：
TiO2 calcined at different temperatures were prepared by sol-gel method. Pt was loaded on TiO2 photocatalyst by photodeposition method. Eosin Y was absorbed on Pt-TiO2 surface via impregnation method to prepare series of dyesensitization Eosin Y-Pt-TiO2 visible light photocatalysts, The activity of the prepared photocatalyst under visible light irradiation was evaluated using photocatalytic hydrogen evolution as a probe reaction. It was found that the activity of Eosin Y-Pt-TiO2 calcined at 350℃ is the best. Samples were characterized by XRD, BET, FF-IR and UV-Vis DRS. It was found that the sensitization of Eosin Y extends the visible light response range of TiO2. Eosin Y makes TiO2 have a very strong absorption peak from 400nm to 600nm. With calcination temperature decreasing, the specific surface area of TiO2 increases, and the hydroxyl amount on the surface of TiO2 also increases, so that with the temperature decreasing, the adsorbed amount of Eosin Y also increases, Therefore the visible light photocatalytic activity of Eosin Y-Pt-TiO2 enhances.
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