Recent Developments in Heterogeneous Photocatalysts with Near-Infrared Response

被引:5
作者
Cao, Nan [1 ,2 ]
Xi, Meilan [1 ]
Li, Xiaoli [3 ]
Zheng, Jinfang [4 ]
Qian, Limei [1 ]
Dai, Yitao [1 ,2 ]
Song, Xizhong [1 ]
Hu, Shengliang [4 ]
机构
[1] Jiangxi Fangzhu Pharmaceut Co Ltd, Xinyu 338000, Peoples R China
[2] Univ Sci & Technol China, Suzhou Inst Adv Res, Suzhou 215123, Peoples R China
[3] Jiangxi Nafutang Pharmaceut Co Ltd, Yichung 336000, Peoples R China
[4] Xinyu Comprehens Inspect & Testing Ctr, Xinyu 338000, Peoples R China
来源
SYMMETRY-BASEL | 2022年 / 14卷 / 10期
关键词
heterogeneous photocatalysis; near-infrared light; symmetric; asymmetric nanostructures; narrow bandgap; up-conversion; photothermal effect; SURFACE-PLASMON RESONANCE; FULL SOLAR SPECTRUM; BLACK PHOSPHORUS; H-2; PRODUCTION; ASYMMETRIC PHTHALOCYANINE; CONJUGATED POLYMERS; ENERGY-TRANSFER; CO2; REDUCTION; LIGHT; CONVERSION;
D O I
10.3390/sym14102107
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Photocatalytic technology has been considered as an efficient protocol to drive chemical reactions in a sustainable and green way. With the assistance of semiconductor-based materials, heterogeneous photocatalysis converts solar energy directly into chemical energy that can be readily stored. It has been employed in several fields including CO2 reduction, H2O splitting, and organic synthesis. Given that near-infrared (NIR) light occupies 47% of sunlight, photocatalytic systems with a NIR response are gaining more and more attention. To enhance the solar-to-chemical conversion efficiency, precise regulation of the symmetric/asymmetric nanostructures and band structures of NIR-response photocatalysts is indispensable. Under the irradiation of NIR light, the symmetric nano-morphologies (e.g., rod-like core-shell shape), asymmetric electronic structures (e.g., defect levels in band gap) and asymmetric heterojunctions (e.g., PN junctions, semiconductor-metal or semiconductor-dye composites) of designed photocatalytic systems play key roles in promoting the light absorption, the separation of electron/hole pairs, the transport of charge carriers to the surface, or the rate of surface photocatalytic reactions. This review will comprehensively analyze the four main synthesis protocols for the fabrication of NIR-response photocatalysts with improved reaction performance. The design methods involve bandgap engineering for the direct utilization of NIR photoenergy, the up-conversion of NIR light into ultraviolet/visible light, and the photothermal effect by converting NIR photons into local heat. Additionally, challenges and perspectives for the further development of heterogeneous photocatalysts with NIR response are also discussed based on their potential applications.
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页数:19
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