Ag3PO4/g-C3N4复合光催化剂的合成及其性能研究进展

文章通过文献综述法介绍了Ag3PO4/g-C3N4壳核复合光催化剂、十二面体和四面体Ag3PO4/g-C3N4复合光催化剂的制备方法、表征手段和光催化性能等。结果表明:溶剂蒸发法和原位沉淀法制备的Ag3PO4/g-C3N4复合光催化剂光催化性能较好,主要在于复合后拓宽了光催化剂的可见光的吸收范围,显著增加了其比表面积。复合后可以有效提高催化剂对可见光的吸收能力,调变其带隙,加快电荷的分离转移速率,降低光生电子-空穴对的复合,最终有效地提高了光催化剂的光催化性能。

The preparation method,characterization and photocatalytic performance of Ag3PO4/g-C3N4 core-shell composite photocatalyst,Ag3PO4/g-C3N4 composite photocatalyst with dodecahedral and tetrahedral morphology are introduced.The results showed that the Ag3PO4/g-C3N4 composite photocatalyst prepared by solvent evaporation method and in-situ precipitation method had better photocatalytic performance,mainly because the composite broadened the visible light absorption range of the photo-catalyst and significantly increased its specific surface area.After recombination,it can effectively improve the ability of the catalyst to absorb visible light,adjust its band gap,accelerate the separation and transfer rate of charge,reduce the recombi-nation of photogenerated electron-hole pairs,and finally effectively improve the photocatalytic performance of the photocatalyst.