Internal electric field in carbon nitride-based heterojunctions for photocatalysis

被引：154
作者：
Deng, Aixin [1 ,2 ]
Sun, Yue [1 ]
Gao, Zhanqi [3 ]
Yang, Shaogui [1 ]
Liu, Yazi [1 ,4 ,5 ,6 ]
He, Huan [1 ]
Zhang, Jinqiang [1 ,4 ]
Liu, Shaomin [5 ]
Sun, Hongqi [7 ]
Wang, Shaobin [1 ,4 ]
机构：
[1] Nanjing Normal Univ, Sch Environm, Jiangsu Engn Lab Water & Soil Ecoremediat, Nanjing 210023, Peoples R China
[2] Southeast Univ, Sch Civil Engn, Dept Municipal Engn, Nanjing 210096, Jiangsu, Peoples R China
[3] Environm Monitoring Ctr Jiangsu Prov, Environm Protect Key Lab Monitoring & Anal Organ P, Nanjing 210019, Peoples R China
[4] Univ Adelaide, Sch Chem Engn, Adelaide, SA 5005, Australia
[5] Curtin Univ, Dept Chem Engn, GPO Box U1987, Perth, WA 6845, Australia
[6] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Peoples R China
[7] Edith Cowan Univ, Sch Sci, 270 Joondalup Dr, Joondalup, WA 6027, Australia
来源：
NANO ENERGY | 2023年 / 108卷
基金：
澳大利亚研究理事会;
关键词：
2D carbon nitride; Internal electric field; Dimensional modifications; Heterojunction; Interfacial engineering; Photocatalysis; VISIBLE-LIGHT-DRIVEN; S-SCHEME HETEROJUNCTION; G-C3N4 ISOTYPE HETEROJUNCTION; H-2; EVOLUTION; HYDROGEN EVOLUTION; CHARGE-TRANSFER; SNS2/G-C3N4; HETEROJUNCTION; EPITAXIAL-GROWTH; POROUS G-C3N4; CO2; REDUCTION;
D O I：
10.1016/j.nanoen.2023.108228
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Carbon nitride is one of the most promising metal-free photocatalysts to harvest solar light for energy conversion and pollutant treatment. Unfortunately, its photocatalytic performance is impeded by the sluggish charge car-riers due to the high symmetry of unit cells of chemical structure. Fabrication of an internal electric field (IEF) in carbon nitride-based photocatalysts is evidenced to be a productive strategy to actuate the fast separation of photo-excited charge carriers and navigate their migrations to active sites for high apparent quantum efficiency (AQE) and throughputs. In the current work, a comprehensive review of IEF in different types of carbon nitride -based heterojunctions will be well presented. Emphasis will be put on the latest progress of IEF generation by hosting 2-dimensional (2D) carbon nitride nanosheets with different dimensional materials, IEF modulation by interfacial engineering as well as IEF identification and monitoring. Relationships between IEF and photo -catalytic performances in various processes will also be enlightened. Finally, this review will suggest the chal-lenges and future perspectives of IEF-driven photocatalysis. This review brings the intrinsic impetus of charge carriers in a photocatalyst to the forefront and is anticipated to provide guidance to configure powered IEF in 2D carbon nitride-based heterostructures toward efficient energy conversion and environmental purification.
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页数：26
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