基于g-C3N4的光催化剂系统在水净化方面的研究进展

Water purification system based on g-C3N4 photocatalyst:A review

根据基于g-C3N4的不同异质结构建来改善其对永久性有机污染物的光催化降解性能,其中,石墨碳氮化物(g-C3N4)由于其高度的化学稳定性、低成本和合适的电子结构以及较弱的能隙(~2.7 eV)一直以来是科研工作者们关注的热点之一,总结归纳了基于g-C3N4的不同的光催化剂,如二元杂化纳米复合材料、复合杂化纳米复合材料。并简要讨论了基于g-C3N4的光催化的基本原理,最后总结了基于g-C3N4的光催化剂系统在水净化方面未来的观点。到目前为止,需要设计和合成一种在可见光驱动下具有意想不到性能的g-C3N4基光催化系统用于废水处理。

This paper improves the photocatalytic degradation performance of permanent organic pollutants based on different heterostructures based on g-C 3N 4.Among them,graphite carbonitride(g-C 3N 4)is low cost and suitable due to its high chemical stability.The electronic structure and weak energy gap(~2.7 eV)have always been one of the hot spots of scientific researchers,and summarized the different photocatalysts based on g-C 3N 4,such as binary hybrid nanocomposites,composites hybrid nanocomposites.The basic principles of photocatalysis based on g-C 3N 4 are briefly discussed.Finally,the future perspectives of water purification in g-C 3N 4 based photocatalyst system are summarized.So far,the work need to design and synthesize a g-C 3N 4-based photocatalytic system with unexpected performance driven by visible light for wastewater treatment.