首页 | 本学科首页   官方微博 | 高级检索  
     

g-C3N4的改性策略以及g-C3N4/Ti3C2异质结研究进展
引用本文:孙丹阳,翟婷婷,黎汉生,刘文芳. g-C3N4的改性策略以及g-C3N4/Ti3C2异质结研究进展[J]. 化工学报, 2020, 71(z2): 1-11. DOI: 10.11949/0438-1157.20200550
作者姓名:孙丹阳  翟婷婷  黎汉生  刘文芳
作者单位:北京理工大学化学与化工学院,北京 102488
基金项目:北京市自然科学基金项目
摘    要:石墨相氮化碳(g-C3N4)禁带宽度约为2.7 eV,具有可见光响应能力。由于其良好的热和化学稳定性,且形貌和化学结构可调,在光催化领域应用广泛。但由于其带隙宽,对可见光响应范围窄,且光生载流子的复合率高,导致其光催化效率低,可通过改性来改善。本文综述了对g-C3N4形貌调控、掺杂和构建异质结等改性策略,以及g-C3N4/Ti3C2异质结的作用机理、制备方法和在光催化析氢、有机物降解及合成等领域的应用。

关 键 词:改性  催化  复合材料  活性  g-C3N4/Ti3C2  
收稿时间:2020-05-09

Research progress on modification strategy of g-C3N4 and g-C3N4/Ti3C2 heterojunction
SUN Danyang,ZHAI Tingting,LI Hansheng,LIU Wenfang. Research progress on modification strategy of g-C3N4 and g-C3N4/Ti3C2 heterojunction[J]. Journal of Chemical Industry and Engineering(China), 2020, 71(z2): 1-11. DOI: 10.11949/0438-1157.20200550
Authors:SUN Danyang  ZHAI Tingting  LI Hansheng  LIU Wenfang
Affiliation:School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
Abstract:Graphite phase carbon nitride (g-C3N4) is a kind of metal-free semiconductor material with a forbidden band width of about 2.7 eV and has visible light response capability. Attributed to its good thermal and chemical stability, adjustable morphology and chemical structure, it is widely used in the field of photocatalysis. However, due to its low specific surface area and wide band gap, its response range to visible light is narrow and the recombination rate of photogenerated carriers is high, resulting in a low photocatalytic efficiency, which can be effectively improved by modification. The two-dimensional material Ti3C2 has a narrower band gap compared with other semiconductor materials, and the heterogeneous junction between Ti3C2 and g-C3N4 is expected to obtain a wider range of visible light absorption and higher photocatalytic efficiency. This article reviews the modification methods of g-C3N4 including morphology control, doping and constructing heterojunctions, as well as the action mechanism, preparation methods and applications of g-C3N4/Ti3C2 heterojunction in photocatalytic hydrogen evolution, organics degradation and synthesis, etc.
Keywords:modification  catalyze  composite material  activity  g-C3N4/Ti3C2  
本文献已被 万方数据 等数据库收录!
点击此处可从《化工学报》浏览原始摘要信息
点击此处可从《化工学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号