Li Yang, Li Xin, Zhang Huaiwu, Xiang Quanjun
State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
College of Forestry and Landscape Architecture, Key Laboratory of Energy Plant Resources and Utilization, Ministry of Agriculture, Key Laboratory of Biomass Energy of Guangdong Regular Higher Education Institutions, South China Agricultural University, Guangzhou 510642, Guangdong, China.
Nanoscale Horiz. 2020 May 4;5(5):765-786. doi: 10.1039/d0nh00046a.
Photocatalysis is attracting increased attention in solving the energy crisis and environmental pollution. Graphitic carbon nitride (g-C3N4), a non-metal photocatalyst, has been regarded as an ideal photocatalyst to solve these problems because of its chemical stability and unique optical properties. However, traditional g-C3N4 exhibits moderate photocatalytic activity due to its low specific surface area and fast recombination rate of photogenerated electrons. Among the many modified g-C3N4 materials, porous carbon nitride (PCN) can solve the shortcomings of traditional g-C3N4 because of PCN's increased number of surface-active sites, specific surface area, light harvesting, diffusion and adsorption/activation. However, a frontier, comprehensive summary of the development of PCN is less reported. Thus, a review on recent developments in PCN research is urgently needed to further promote its advancement. In this review, the synthesis methods, structures and properties and photocatalytic applications of PCN photocatalysts are described in detail. The current challenges and future development of PCN/PCN-based photocatalysts are discussed. This review may present an up-to-date view of the PCN development to provide an in-depth understanding of PCN-based photocatalysts.
光催化在解决能源危机和环境污染方面正受到越来越多的关注。石墨相氮化碳（g-C3N4）作为一种非金属光催化剂，因其化学稳定性和独特的光学性质，被视为解决这些问题的理想光催化剂。然而，传统的g-C3N4由于其低比表面积和光生电子的快速复合率，表现出中等的光催化活性。在众多改性g-C3N4材料中，多孔氮化碳（PCN）因其增加的表面活性位点数量、比表面积、光捕获、扩散以及吸附/活化作用，能够解决传统g-C3N4的缺点。然而，关于PCN发展的前沿、全面综述报道较少。因此，迫切需要一篇关于PCN研究最新进展的综述，以进一步推动其发展。在这篇综述中，详细描述了PCN光催化剂的合成方法、结构与性质以及光催化应用。讨论了PCN/基于PCN的光催化剂当前面临的挑战和未来发展。这篇综述可能会呈现PCN发展的最新观点，以提供对基于PCN的光催化剂的深入理解。
