Advances in poly(heptazine imide)/poly(triazine imide) photocatalyst  

作　　者：Haojie Song Laiyu Luo Siyu Wang Guo Zhang Baojiang Jiang 

机构地区：[1]Key Laboratory of Functional Inorganic Material Chemistry,Ministry of Education of the People's Republic of China,School of Chemistry and Materials Science,Heilongjiang University,Harbin 150000,China

出　　处：《Chinese Chemical Letters》2024年第10期102-125,共24页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.52273264)。

摘　　要：Polymeric carbon nitride(PCN)has garnered increasing attention as a metal-free photocatalyst with a suitable band gap.In efforts to enhance its photocatalytic performance,researchers have examined various PCN materials,including poly(heptazine imide)(PHI)and poly(triazine imide)(PTI),two isomers within the PCN family that exhibit distinct and superior photocatalytic activity compared to other forms.The challenge,however,lies in the common practice among researchers to categorize PHI and PTI along with other PCN types under the overarching term“g-C_(3)N_(4),”which significantly impedes optimization efforts.The objective of this review is to provide comprehensive insights into the structural features,photoelectrochemical properties,and effective characterization methods employed for distinguishing between PHI and PTI materials.The review also summarizes various optimization strategies,such as crystallinity adjustments,defect engineering,morphology control,constructing heterojunction,and atomic-level metal loading dispersion,to elevate the photocatalytic activity of PHI and PTI,in addition to summarizing the history of carbon nitride development.Furthermore,this review highlights the primary applications of PHI and PTI,encompassing nitrogen fixation,biomass conversion,organic synthesis,CO_(2)reduction,pollutant degradation,H_(2)O_(2)production,and photocatalytic water splitting.Lastly,the prospects and challenges associated with further advancing PHI and PTI are thoroughly examined.

关 键 词：Poly(heptazine imide) Poly(triazine imide) Modification PHOTOCATALYTIC Application 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学]