Yan Bo, Chen Zhonghui, Xu Yuxi
Key Lab for Special Functional Materials of Ministry of Education, School of Materials Science and Engineering, Henan University, Kaifeng, 475004, China.
State Key Laboratory of Optoelectronic Materials and Technologies Nanotechnology Research Center, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China.
Chem Asian J. 2020 Aug 3;15(15):2329-2340. doi: 10.1002/asia.202000253. Epub 2020 Apr 27.
Photocatalytic reactions, including hydrogen/oxygen generation, water splitting and hydrogen peroxide production, are regarded as a renewable and promising method to harvest and use solar energy. The key to achieving this goal is to explore efficient photocatalysts with high productivity. Recently, two-dimensional (2D) polymeric carbon nitride nanosheets were reported as efficient photocatalysts toward various products because of their outstanding properties, such as high specific surface area, more reactive sites, the quantum effect in thickness and unique electronic properties. This minireview attempts to overview recent advances in the preparation, structure and properties of crystalline and amorphous carbon nitride nanosheets, and their applications in photocatalytic hydrogen/oxygen evolution, water splitting and hydrogen peroxide production. We also thoroughly discuss the effect of defects, dopants and composites on the photocatalytic efficiency of these carbon nitride nanosheets. Finally, we outlook the ongoing opportunities and future challenges for 2D carbon nitride nanosheets in the field of photocatalysis.
光催化反应，包括氢气/氧气生成、水分解和过氧化氢生成，被视为一种可再生且有前景的太阳能收集和利用方法。实现这一目标的关键是探索具有高生产率的高效光催化剂。最近，二维（2D）聚合氮化碳纳米片因其优异的性能，如高比表面积、更多活性位点、厚度方向的量子效应和独特的电子性质，被报道为对各种产物有效的光催化剂。本综述试图概述结晶和非晶氮化碳纳米片在制备、结构和性能方面的最新进展，以及它们在光催化析氢/析氧、水分解和过氧化氢生成中的应用。我们还深入讨论了缺陷、掺杂剂和复合材料对这些氮化碳纳米片光催化效率的影响。最后，我们展望了二维氮化碳纳米片在光催化领域当前的机遇和未来的挑战。
