g-C_(3)N_(4)基材料光催化分解水产氢的研究进展

Research Progress in Photocatalytic Decomposition of Hydrogen in Aquatic Products by g-C_(3)N_(4) Based Materials

由于化石燃料大量消耗导致的能源危机和环境问题日趋严重,将氢能作为一种替代传统能源的绿色能源成为当下的研究热点。用以光催化分解水产氢的石墨相氮化碳(g-C_(3)N_(4))基材料不仅制氢规模大,而且投入成本少,近年已成为产氢的最优方案之一。但通过对g-C_(3)N_(4)改性,可有效提高其产氢效率,并解决g-C_(3)N_(4)材料固有的可见光响应范围窄、电子—空穴复合严重、光催化产氢效率低等问题。本文回顾了近年来各种基于g-C_(3)N_(4)基材料光催化分解水产氢的方法和手段,重点介绍了g-C_(3)N_(4)光解水产氢的机理、g-C_(3)N_(4)的掺杂改性,并总结了影响g-C_(3)N_(4)基材料光催化分解水产氢效率的因素。最后,讨论了g-C_(3)N_(4)基材料光催化分解水产氢的一些关键限制条件和未来前景。

Due to the increasingly serious energy crisis and environmental problems caused by the massive consumption of fossil fuels,hydrogen energy as a green energy substitute for traditional energy has become a research hotspot.The graphite-phase carbon nitride (g-C_(3)N_(4)) based material used for photocatalytic decomposition of hydrogen in aquatic products has become one of the best schemes for hydrogen production in recent years due to its large scale and low cost.However,the modification of g-C_(3)N_(4)can effectively improve its hydrogen production efficiency,and solve the inherent problems of g-C_(3)N_(4)material,such as narrow response range of visible light,serious electron-hole recombination,and low photocatalytic hydrogen production efficiency.In this paper,various methods and means of photocatalytic decomposition of hydrogen in aquatic products based on g-C_(3)N_(4)based materials are reviewed in recent years.The mechanism of photocatalytic decomposition of hydrogen in aquatic products based on g-C_(3)N_(4)and doping modification of g-C_(3)N_(4)are introduced emphatically,and the factors affecting the efficiency of photocatalytic decomposition of hydrogen in aquatic products based on g-C_(3)N_(4)are summarized.Finally,some key limitations and future prospects for the photocatalytic decomposition of hydrogen in aquatic products by g-C_(3)N_(4)based materials are discussed.