石墨相氮化碳基光催化复合材料的元素掺杂改性研究综述  

Review of element doping modification research on graphite carbon nitride based photocatalytic composite materials

作　　者：薛丹[1,2] 朱华英 林春玲[1,2] 候寅 宋邓萌 XUE Dan;ZHU Huaying;LIN Chunling;HOU Yin;SONG Dengmeng(School of Chemistry and Chemical Engineering,Xi'an Shiyou University,Xi'an 710065,Shaanxi Province,China;Engineering Research Center of Oil and Gas Field Chemistry,Xi'an Shiyou University,Xi'an 710065,Shaanxi Province,China)

机构地区：[1]西安石油大学化学化工学院,陕西西安710065 [2]西安石油大学油气田化学陕西省高校工程研究中心,陕西西安710065

出　　处：《化学工程》2025年第4期29-35,共7页Chemical Engineering(China)

基　　金：陕西基础科学(化学、生物学)研究院科学研究计划项目(23JHQ080)。

摘　　要：基于g-C_(3)N_(4)(石墨相氮化碳)的光催化技术在污染物降解、光催化制氢、光催化还原CO 2等领域展现出巨大的潜力,然而,比表面积小、光生电子-空穴对复合率较高、光吸收范围有限等限制了g-C_(3)N_(4)的应用。提升其光催化性能的方法通常有元素掺杂、形貌调控、构建异质结等。文中详细阐述了通过非金属元素和金属元素掺杂改性g-C_(3)N_(4)的方法、机理及其应用。此外,对g-C_(3)N_(4)的后续改性方向,如非金属和金属元素共掺杂、多种改性方法耦合作用的前景进行展望。The photocatalytic technology based on g-C_(3)N_(4)(graphite carbon nitride)has great potential in pollutant degradation,photocatalytic hydrogen production and photocatalytic carbon dioxide reduction.However,the shortcomings of g-C_(3)N_(4),such as small specific surface area,high photo-generated carrier recombination rate and small light absorption range,limit its application range.The effective strategies to improve the photocatalytic performance of g-C_(3)N_(4)are element doping,morphology regulation and heterojunction construction.The method,mechanism and application of modifying g-C_(3)N_(4)by doped with non-metallic and metallic elements were described in details.In addition,the subsequent modification directions of g-C_(3)N_(4),such as the outlook of co-doping of non-metallic and metallic elements and the coupling effect of multiple modification methods,were prospected.

关 键 词：石墨相氮化碳 元素掺杂改性 光催化 降解机理 

分 类 号：O644.1[理学—物理化学] TQ246[理学—化学]