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?????????CO2-3/TiO2???????????????

DOI: 10.11830/ISSN.1000-5013.2013.05.0534

Keywords: ???????, ????, TiO2, ???, ????

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Abstract:

以碳酸铵和溶胶-凝胶法制备的TiO2干凝胶为原料,采用机械研磨-热处理法制备表面键合型CO2-3/TiO2光催化剂,并对样品的晶相组成、比表面积、光吸收性能、表面化学状态和表面光生载流子的分离效率等性质进行表征.此外,以气相的丙酮为模型污染物,考察催化剂在紫外光(λ≈365 nm)照射下的光催化性能.结果表明:CO2-3/TiO2光催化降解丙酮的转化率和矿化率分别为82%和100%,与纯TiO2相比,其转化率和矿化率分别提高了105%和61%.

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