以十六烷基三甲基溴化铵(CTAB)为模板剂,碳纳米管(CNTs)为载体,采用醇热合成法制备了InVO4/CNTs光催化剂,利用透射电镜、高分辨扫描电镜、X射线衍射、N2吸附和紫外-可见光谱等技术对样品的表面形貌、晶相组成、比表面积和吸光性等物理性质进行了表征,并考察了其在可见光(以300 W氙灯为光源)照射下分解水制氢的催化活性.结果表明,InVO4纳米粒子在CNTs表面分布均匀,粒径约为10 nm,比表面积为102 m2/g.与体相InVO4相比,InVO4/CNTs在可见光区(λ>420 nm)的吸光性能有显著改善,在氙灯激发下催化活性很高,在纯水及20%甲醇水溶液中光催化反应4 h,平均产氢速率分别为156和217 μmol/(g·h).InVO4/CNTs的高可见光光催化活性与碳纳米管载体的电子特性有关.
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