Construction of a push–pull system in g-C3N4 for efficient photocatalytic hydrogen evolution under visible light

2020 ◽  
Vol 8 (26) ◽  
pp. 13299-13310 ◽  
Author(s):  
Cheng-Qun Xu ◽  
Wei-De Zhang ◽  
Kenzo Deguchi ◽  
Shinobu Ohki ◽  
Tadashi Shimizu ◽  
...  

A facile “one-pot” method to improve the utilization of visible light using organic chemistry protocols is reported.

2016 ◽  
Vol 45 (3) ◽  
pp. 1160-1165 ◽  
Author(s):  
Yu Huang ◽  
Jun Chen ◽  
Wei Zou ◽  
Linxing Zhang ◽  
Lei Hu ◽  
...  

TiO2/CdS porous hollow microspheres have been one-pot rapidly synthesized and exhibit an excellent photocatalytic activity of 996 μmol h−1 under visible light.


2020 ◽  
Vol 16 ◽  
Author(s):  
Yuxue Wei ◽  
Honglin Qin ◽  
Jinxin Deng ◽  
Xiaomeng Cheng ◽  
Mengdie Cai ◽  
...  

Introduction: Solar-driven photocatalytic hydrogen production from water splitting is one of the most promising solutions to satisfy the increasing demands of a rapidly developing society. CdS has emerged as a representative semiconductor photocatalyst due to its suitable band gap and band position. However, the poor stability and rapid charge recombination of CdS restrict its application for hydrogen production. The strategy of using a cocatalyst is typically recognized as an effective approach for improving the activity, stability, and selectivity of photocatalysts. In this review, recent developments in CdS cocatalysts for hydrogen production from water splitting under visible-light irradiation are summarized. In particular, the factors affecting the photocatalytic performance and new cocatalyst design, as well as the general classification of cocatalysts, are discussed, which includes a single cocatalyst containing noble-metal cocatalysts, non-noble metals, metal-complex cocatalysts, metal-free cocatalysts, and multi-cocatalysts. Finally, future opportunities and challenges with respect to the optimization and theoretical design of cocatalysts toward the CdS photocatalytic hydrogen evolution are described. Background: Photocatalytic hydrogen evolution from water splitting using photocatalyst semiconductors is one of the most promising solutions to satisfy the increasing demands of a rapidly developing society. CdS has emerged as a representative semiconductor photocatalyst due to its suitable band gap and band position. However, the poor stability and rapid charge recombination of CdS restrict its application for hydrogen production. The strategy of using a cocatalyst is typically recognized as an effective approach for improving the activity, stability, and selectivity of photocatalysts. Methods: This review summarizes the recent developments in CdS cocatalysts for hydrogen production from water splitting under visible-light irradiation. Results: Recent developments in CdS cocatalysts for hydrogen production from water splitting under visible-light irradiation are summarized. The factors affecting the photocatalytic performance and new cocatalyst design, as well as the general classification of cocatalysts, are discussed, which includes a single cocatalyst containing noble-metal cocatalysts, non-noble metals, metal-complex cocatalysts, metal-free cocatalysts, and multi-cocatalysts. Finally, future opportunities and challenges with respect to the optimization and theoretical design of cocatalysts toward the CdS photocatalytic hydrogen evolution are described. Conclusion: The state-of-the-art CdS for producing hydrogen from photocatalytic water splitting under visible light is discussed. The future opportunities and challenges with respect to the optimization and theoretical design of cocatalysts toward the CdS photocatalytic hydrogen evolution are also described.


Author(s):  
Chengqun Xu ◽  
Xiaolu Liu ◽  
Dezhi Li ◽  
Zeyuan Chen ◽  
Jiale Yang ◽  
...  

Author(s):  
Huihui Li ◽  
Fuchun Ning ◽  
Xiaofei Chen ◽  
Anye Shi

Porous carbon nitride nanosheets with carbon and nitrogen double vacancies have been synthesized by soft template-supported one-pot method. Besides a highly defined and unambiguous structure, it also shows minimal thickness...


2020 ◽  
Vol 10 (6) ◽  
pp. 1609-1618 ◽  
Author(s):  
Chao Zhang ◽  
Jiandong Liu ◽  
Xingliang Liu ◽  
Shiai Xu

Reaction mechanism for the higher photocatalytic performance of H2 production of g-C3N4NSs/TC1 under visible light irradiation (λ ≥ 400 nm).


2020 ◽  
Vol 124 (11) ◽  
pp. 5934-5943 ◽  
Author(s):  
Xinlei Guo ◽  
Yanhua Peng ◽  
Guangbo Liu ◽  
Guangwen Xie ◽  
Yanan Guo ◽  
...  

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