中文摘要：

采用水热法制备了碳纳米管与P25复合的光催化材料，运用XRD、FESEM、UVPC、laser Ramanspec—troscopy及PL测试手段表征了样品的晶相组成、显微结构、光谱吸收及光生载流子。结果表明，复合碳纳米管的P25的禁带宽度变窄，光谱吸收能力增强，光生载流子效率提高，光催化活性比纯P25高。

英文摘要：

CNTs/P25 photocatalyst was prepared by hydrothermal method. The crystal phase composition, mi- croscopic structure, absorption spectrum and photogenerated carriers of the sample were characterized by X-ray dif- fraction （XRD）, field emission scan electron microscope （FESEM）, UV-Vis-NIR spectrophotometer （UVPC）, laser Raman spectroscopy, and fluorescence spectrometer （PIE.）. The results show that the energy gap of CNTs-doped P25 is reduced, the efficiency of photogenerated carriers and light adsorption ability are enhanced, the photocatalyst as pre- pared has a better photocatalytic activity over the pure P25.