g-C3N5用于光催化产氢的研究进展
Research Progress of g-C3N5 for Photocatalytic Hydrogen Production
DOI: 10.12677/aep.2026.163045, PDF,   
作者: 梁 冲：辽宁大学环境学院，辽宁 沈阳
关键词: g-C3N5；光催化产氢；助催化剂；异质结构；g-C3N5； Photocatalytic Hydrogen Production； Cocatalyst； Heterostructure
摘要: 本文围绕新型富氮碳氮化物g-C3N5在光催化产氢领域的研究进展进行综述。相较于传统g-C3N4，g-C3N5具有更高氮含量与更延展的π共轭骨架结构，禁带宽度通常收窄至2.0~2.4 eV，可显著增强可见光吸收并改善载流子分离与迁移能力。然而，g-C3N5仍存在光生电子–空穴复合严重、比表面积有限及活性位点利用率不足等问题。本文针对g-C3N5的改性研究，重点综述了缺陷工程、元素掺杂、构建Type-II/Z-scheme/S-scheme 异质结构以及助催化剂与界面工程等策略的研究进展，归纳了目前存在的问题，最后展望g-C3N5在太阳能制氢与“碳中和”背景下的应用前景。
Abstract: This article reviews the research progress of novel nitrogen-rich carbonitrides g-C3N5 in photocatalytic hydrogen production. Compared with traditional g-C3N4, g-C3N5 has a higher nitrogen content and a more extended π-conjugated framework structure, with a band gap typically narrowed to 2.0~2.4 eV, which can significantly enhance visible light absorption and improve carrier separation and migration capabilities. However, g-C3N5 still suffers from problems such as severe photogenerated electron-hole recombination, limited specific surface area, and insufficient utilization of active sites. This paper reviews the research progress on the modification of g-C3N5, focusing on strategies such as defect engineering, elemental doping, construction of Type-II/Z-scheme/S-scheme heterostructures, and cocatalysts and interface engineering. It summarizes the existing problems and finally looks forward to the application prospects of g-C3N5 in solar-powered hydrogen production and carbon neutrality.
文章引用：梁冲. g-C3N5用于光催化产氢的研究进展[J]. 环境保护前沿, 2026, 16(3): 452-464. https://doi.org/10.12677/aep.2026.163045

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