g-C_(3)N_(4)纳米片的改性及光催化降解应用  

Modification and photocatalytic degradation application of g-C_(3)N_(4)nanosheets

作　　者：李静霄 解玉龙 LI Jingxiao;XIE Yulong(Qinghai Minzu University,College of Chemistry and Chemical Engineering,Key Laboratory of Resource Chemistry and Eco-environmental Protection in Tibetan Plateau of State Ethnic Affairs Commission,Qinghai Provincial Key Laboratory of Applied Physical Chemistry,Xining 810007,China)

机构地区：[1]青海民族大学化学化工学院,青藏高原资源化学与生态环境保护国家民委重点实验室,青海省应用物理化学重点实验室,青海西宁810007

出　　处：《印染》2023年第8期82-87,共6页China Dyeing and Finishing

基　　金：青海省应用基础研究项目(2020ZJ705)。

摘　　要：石墨相氮化碳纳米片(2D g-C_(3)N_(4))属于非金属聚合物半导体,具有成本低、无毒、对环境友好、能吸收可见光等优点,但也存在一定的缺陷。介绍了2D g-C_(3)N_(4)的基本结构和光催化机理,重点分析了2D g-C_(3)N_(4)的改性方法,包括金属掺杂、非金属掺杂、TypeⅡ型异质结、Z型异质结、S型异质结,以及助催化剂修饰等,并分析了它们在光催化降解方面的应用,展望了2D g-C_(3)N_(4)的发展方向。Graphite carbon nitride nanosheets(2D g-C_(3)N_(4))is a kind of non-metallic polymer semiconductor,which has the advantages of low cost,non-toxicity,environmental friendliness,and can absorb part of visible light.However,2D g-C_(3)N_(4)has certain defects.The basic structure and photocatalytic mechanism of 2D g-C_(3)N_(4)are briefly introduced.The modification methods of 2D g-C_(3)N_(4),including metal doping,non-metal doping,Type II heterojunction,Z-type heterojunction,S-type heterojunction,and co-catalyst modification are mainly analyzed.The application of 2D g-C_(3)N_(4)nanosheets in photocatalytic degradation is analyzed,and the development direction of 2D g-C_(3)N_(4)nanosheets is prospected.

关 键 词：光催化降解 改性方法 g-C_(3)N_(4)纳米片 非金属聚合物半导体 

分 类 号：X703[环境科学与工程—环境工程] O643[理学—物理化学] TS199[理学—化学]