Progress of crystalline carbon nitride in synthesis,atomic structure characterization and photocatalysis  

作　　者：Yueyang Tan Zhongyan Zhang Yayun Pu Zongzhao Sun Limin Huang 

机构地区：[1]School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China [2]Department of Chemistry,Southern University of Science and Technology,Shenzhen 518055,China [3]School of Traffic and Environment,Shenzhen Institute of Information Technology,Shenzhen 518172,China [4]College of Chemistry and Chemical Engineering,Linyi University,Linyi 276000,China [5]School of Optoelectronic Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China

出　　处：《Nano Research》2025年第1期455-476,共22页纳米研究（英文版）

基　　金：supported by the Science,Technology and Innovation Commission of Shenzhen Municipality(No.JCYJ20220818100212027);Guangdong Provincial Key Laboratory of Energy Materials for Electric Power(No.2018B030322001);Guangdong Provincial Key Laboratory of Catalysis(No.2020B121201002);Guangdong Province Ordinary University Innovation Team Project(No.2024KCXTD063);supported by the Pico Center at SUSTech,which received support from a Presidential fund and the Development and Reform Commission of Shenzhen Municipality.

摘　　要：Crystalline carbon nitride(CCN)has emerged as a highly promising semiconductor photocatalyst with unique properties,such as enhanced charge migration rate,reduced carrier recombination probability,narrow band gap and improved light-harvesting efficiency,which are suitable for a wide range of applications in solar-to-chemical conversion,energy storage,therapeutic and environmental pollution degradation.In the past few years,there has been an increasing number of reviews on CCN materials.However,most of these reviews mainly focus on synthesis methods,modification and applications,with less emphasis on the relationship between structures and properties,as well as on indepth exploration of the crystalline structure.The electronic instability of CCN presents challenges for conventional characterization techniques to directly and thoroughly investigate the relationship between its intrinsic atom structure and photocatalytic performance.This mini-review not only highlights the progress in CCN-based photocatalysts,with a focus on molten-salt synthesis(including solid-salt-induced crystallization),but also emphasizes the atomic structure characterization by specifically introducing the differential phase contrast(DPC)scanning transmission electron microscopy(STEM)technique,which is essential for enhancing our understanding of the crystal structure and photocatalytic mechanisms of CCNs.Additionally,the review outlines the photocatalytic performance and puts forward potential challenges on CCN studies.This review will provide a clearer understanding of the relationship in developing precise customization strategies for CCN materials and ultimately explain the regularity and specificity of the enhanced performance in targeted photocatalytic systems.

关 键 词：crystalline carbon nitride SYNTHESIS CHARACTERIZATION PHOTOCATALYSIS 

分 类 号：O62[理学—有机化学]