中文摘要：

以P25 TiO2（德国Degussa化学公司）粉末为原料采用溶胶-凝胶法制备了含有不同CdS质量分数的复合光催化剂,利用多壁碳纳米管（MWCNTs）对CdS/TiO2进行修饰,制备了一系列不同CdS含量的MWCNTs/CdS/TiO2光催化材料。对所得的光催化剂进行了扫描电镜、低温氮吸附-脱附及光解水制氢活性的表征。研究了MWCNTs对CdS/TiO2催化剂体系光解水制氢活性的影响。结果表明,MWCNTs的引入均使得光解水产氢量（14.0μmol）增加,与未加入MWCNTs的复合光化剂产氢量（11.6μmol）相比,平均产氢率增加了18%,最高可达21%。

英文摘要：

The CdS/TiO2 photocatalytic composites containing different amounts of CdS were fabricated using solgel method with P25 TiO2 as the raw material. The obtained CdS/TiO2 was further modified by multi-wall carbon nanotubes （MWCNTs）. The as-synthesized MWCNTs/CdS/TiO2 photocatalytic composites were characterized by scanning electron microscopy, low temperature nitrogen adsorption-desorption（BET surface area） and hydrogen evolution from water photo-splitting. The influence of MWCNTs on the photocatalytie hydrogen evolution performance for CdS/TiO2 catalysts was investigated using Na2S-Na2SO3 as a sacrificial electron donor under UV- Vis light irradiation. It is found that hydrogen production（14.0 μmol） from water photo-splitting can be enhanced by introducing MWCNTs into CdS/TiO2 composites, in comparison to CdS/TiO2 photocatalysts（11.6 μmol）. The average hydrogen production rate can be improved by 18% and the highest rate improvement can be up to 21%.