Cheng Lei, Zhang Huaiwu, Li Xin, Fan Jiajie, 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 Plants Resource and Utilization, Ministry of Agriculture, Key Laboratory of Biomass Energy of Guangdong Regular Higher Education Institutions, South China Agricultural University, Guangzhou, Guangdong, 510642, China.
Small. 2021 Jan;17(1):e2005231. doi: 10.1002/smll.202005231. Epub 2020 Dec 2.
Polymeric graphitic carbon nitride (g-C N ) and various carbon materials have experienced a renaissance as viable alternates in photocatalysis due to their captivating metal-free features, favorable photoelectric properties, and economic adaptabilities. Although numerous efforts have focused on the integration of both materials with optimized photocatalytic performance in recent years, the direct parameters for this emerging enhancement are not fully summarized yet. Fully understanding the synergistic effects between g-C N and carbon materials on photocatalytic action is vital to further development of metal-free semiconductors in future studies. Here, recent advances of carbon/g-C N hybrids on various photocatalytic applications are reviewed. The dominant governing factors by inducing carbon into g-C N photocatalysts with involving photocatalytic mechanism are highlighted. Five typical carbon-induced enhancement effects are mainly discussed here, i.e., local electric modification, band structure tailoring, multiple charge carrier activation, chemical group functionalization, and abundant surface-modified engineering. Photocatalytic performance of carbon-induced g-C N photocatalysts for addressing directly both the renewable energy storage and environmental remediation is also summarized. Finally, perspectives and ongoing challenges encountered in the development of metal-free carbon-induced g-C N photocatalysts are presented.
聚合物石墨相氮化碳（g-C₃N₄）和各种碳材料因其具有引人注目的无金属特性、良好的光电性能和经济适用性，在光催化领域作为可行的替代材料经历了复兴。尽管近年来众多研究致力于将这两种材料结合以实现优化的光催化性能，但这种新出现的性能增强的直接参数尚未得到充分总结。充分理解g-C₃N₄与碳材料在光催化作用方面的协同效应对于未来研究中无金属半导体的进一步发展至关重要。在此，综述了碳/g-C₃N₄杂化物在各种光催化应用方面的最新进展。重点介绍了通过将碳引入g-C₃N₄光催化剂并涉及光催化机理而产生的主要控制因素。这里主要讨论了五种典型的碳诱导增强效应，即局部电改性、能带结构剪裁、多电荷载流子活化、化学基团功能化和丰富的表面改性工程。还总结了碳诱导g-C₃N₄光催化剂在直接解决可再生能源存储和环境修复方面的光催化性能。最后，介绍了无金属碳诱导g-C₃N₄光催化剂开发中遇到的前景和持续挑战。
