中文摘要：

采用水热法制备异质结构InVO4/BiPO4复合光催化剂.XRD,SEM,EDX及XPS结果表明成功制备InVO4/BiPO4复合光催化剂.可见光下（λ＆gt;420 nm）光催化降解苯酚红实验结果表明,InVO4/BiPO4光催化活性较纯相InVO4和BiPO4高.其中,1InVO4∶1BiPO4光催化活性最高.InVO4/BiPO4样品光催化性能提高的原因是InVO4和BiPO4形成异质结构从而有效抑制了光生电子-空穴对的复合,及由于InVO4对BiPO4的敏化作用而使其可见光吸收增强.并且讨论了InVO4/BiPO4光催化机制.结果表明超氧自由基是主要的活性物种.

英文摘要：

In this work,novel heterostructured InVO4/BiPO4 composite photocatalysts were fabricated through a hydrothermal route. The XRD,SEM,EDX and XPS results indicated the as-prepared sample is a two-phase composite of InVO4 and BiPO4. The photocatalytic performances of the as-prepared composites were measured through the degradation of phenol red aqueous solution under visible light（ λ 420 nm）. The results showed that the as-fabricated InVO4/BiPO4 photocatalysts displayed much higher photocatalytic activities than that of pure InVO4 and pure BiPO4. Among them,the 1InVO4： 1BiPO4 composite performed the best. The enhanced photocatalytic performance was attributed mainly to the formation of heterojunction interface in InVO4/BiPO4 composites,which is beneficial to the transfer and separation of photogenerated electron-hole pairs,as well as the enhanced visible light absorption due to the sensitization role of InVO4 to BiPO4. The possible photocatalytic mechanism of InVO4/BiPO4 composite was also discussed. Superoxide radicals were the major active species.