Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China; Institute for Advanced Material and Technology, University of Science and Technology Beijing, Beijing 100083, China.
School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
Adv Colloid Interface Sci. 2021 Sep;295:102488. doi: 10.1016/j.cis.2021.102488. Epub 2021 Jul 17.
The technology of photocatalytic hydrogen production that converts abundant yet intermittent solar energy into an environmentally friendly alternative energy source is an attractive strategy to mitigate the energy crisis and environmental pollution. Graphitic carbon nitride (g-CN), as a promising photocatalyst, has gradually received focus in the field of artificial photosynthesis due to its appealing optical property, high chemical stability and easy synthesis. However, the limited light absorption and massive recombination of photoinduced carriers have hindered the photocatalytic activity of bare g-CN. Therefore, from the perspective of theoretical calculations and experiments, many valid approaches have been applied to rationally design the photocatalyst and ameliorate the hydrogen production performance, such as element doping, defect engineering, morphology tuning, and semiconductor coupling. This review summarized the latest progress of g-CN-based photocatalysts from two perspectives, modification of pristine g-CN and interfacial engineering design. It is expected to offer feasible suggestions for the fabrication of low-cost and high-efficiency photocatalysts and the photocatalytic mechanism analyses assisted by calculation in the near future. Finally, the prospects and challenges of this exciting research field are discussed.
将丰富但间歇性的太阳能转化为环境友好型替代能源的光催化制氢技术是缓解能源危机和环境污染的一种有吸引力的策略。石墨相氮化碳（g-CN）作为一种很有前途的光催化剂，由于其吸引人的光学性质、高化学稳定性和易于合成，在人工光合作用领域逐渐受到关注。然而，有限的光吸收和光生载流子的大量复合阻碍了裸 g-CN 的光催化活性。因此，从理论计算和实验的角度来看，已经应用了许多有效的方法来合理设计光催化剂并改善制氢性能，例如元素掺杂、缺陷工程、形貌调谐和半导体耦合。本综述从修饰原始 g-CN 和界面工程设计两个方面总结了基于 g-CN 的光催化剂的最新进展。预计这将为制备低成本、高效率的光催化剂提供可行的建议，并通过计算辅助分析光催化机制。最后，讨论了这个令人兴奋的研究领域的前景和挑战。
