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中文摘要：
用浸渍法制备了Rose bengal-Pt-TiO2和Rose bengal-AlCl3-Pt-TiO2光催化剂，通过可见光下光解水制氢考察了催化剂的催化活性。染料Rosebengal的敏化使TiO2在可见光照射下有较强的吸收和活性。催化剂Rose bengal-AlCl3-Pt-TiO2光催化活性高于Rose bengal-Pt-TiO2。其原因是经过AlCl3修饰的TiO2可以提高对染料Rose bengal的吸附量和吸附强度，从而提高了TiO2的可见光催化活性。
英文摘要：
The photocatalytic catalysts of Rose bengal-AlCl3-Pt-TiO2 and Rose bengal-Pt-TiO2 were preparea by impregnation method. The photocatalytic activities of the catalysts were investigated by the photocatalytic hydrogen generation from water under visible light. The result indicates that TiO2 sensitized by dye Rose bengal shows stronger absorption and higher photocatalytic activity under visible light irradiation. The catalyst of Rose bengal-AlCl3-Pt-TiO2 has higher photocatalytic activity than Rose bengal-Pt-TiO2. The reason is that TiO2 modified by AlCl3 can enhance the adsorption amount and intensity of dye Rose bengal, so the photocatalytic activity of TiO2 is improved.
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