Enhanced production of H2 under visible light via co-deposited Pt and Ir species on g-C3N4

2020 ◽  
Vol 10 (18) ◽  
pp. 6378-6386
Author(s):  
Chen Chen ◽  
Jianjun Zhao ◽  
Yiming Xu
Keyword(s):  
Electron Transfer ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Hole Transfer ◽  
Photocatalytic Hydrogen Evolution ◽  
Enhanced Production ◽  
Mediated Electron Transfer

Synergism between PtO-mediated electron transfer and IrO2-mediated hole transfer enhanced the photocatalytic hydrogen evolution of g-C3N4.

Effect of electron transfer on the photocatalytic hydrogen evolution efficiency of faceted TiO2/CdSe QDs under visible light

2018 ◽  
Vol 42 (7) ◽  
pp. 4811-4817 ◽  
Author(s):  
Weiwei Chen ◽  
Shan Yu ◽  
Yunqian Zhong ◽  
Xiang-Bing Fan ◽  
Li-Zhu Wu ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Transfer Rate ◽  
Electron Transfer Rate ◽  
Cdse Qds ◽  
Photocatalytic Hydrogen Evolution

Higher photocatalytic hydrogen evolution efficiency of {001}-TiO2/CdSe QDs was obtained because of their faster electron transfer rate, compared to that of {101}-TiO2/CdSe QDs.

Semiconductor Photocatalysts for Solar-to-Hydrogen Energy Conversion: Recent Advances of CdS

2020 ◽  
Vol 16 ◽  
Author(s):  
Yuxue Wei ◽  
Honglin Qin ◽  
Jinxin Deng ◽  
Xiaomeng Cheng ◽  
Mengdie Cai ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Noble Metals ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Evolution ◽  
Theoretical Design ◽  
Recent Developments

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.

Coordination of π-Delocalization in g-C3N4 for Efficient Photocatalytic Hydrogen Evolution under Visible Light

2021 ◽  
Author(s):  
Chengqun Xu ◽  
Xiaolu Liu ◽  
Dezhi Li ◽  
Zeyuan Chen ◽  
Jiale Yang ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Photocatalytic Hydrogen Evolution
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