scholarly journals Back-illuminated Si photocathode: a combined experimental and theoretical study for photocatalytic hydrogen evolution

2015 ◽  
Vol 8 (2) ◽  
pp. 650-660 ◽  
Author(s):  
Dowon Bae ◽  
Thomas Pedersen ◽  
Brian Seger ◽  
Mauro Malizia ◽  
Andrej Kuznetsov ◽  
...  
Keyword(s):  
Theoretical Model ◽  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Theoretical Study ◽  
Experimental Demonstration ◽  
Photocatalytic Hydrogen Evolution ◽  
Model Study ◽  
Back Illuminated

We present the first experimental demonstration of c-Si based photocathode for hydrogen production under back-illumination with theoretical model study.

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.

Rose-like MoSx and CeVO4 construct direct Z-scheme heterojunction for efficient photocatalytic hydrogen evolution

2021 ◽  
Author(s):  
Zhiliang Jin ◽  
Hongying Li ◽  
Haiming Gong ◽  
Kaicheng Yang ◽  
Qingjie Guo
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Photocatalytic Hydrogen Production ◽  
Photocatalytic Hydrogen Evolution

Constructing a heterojunction as a strategy to improve the performance of a single catalyst for photocatalytic hydrogen production has received more and more attention in recent years. In the work,...

Ultrathin HNb3O8 nanosheet: an efficient photocatalyst for the hydrogen production

2015 ◽  
Vol 3 (41) ◽  
pp. 20627-20632 ◽  
Author(s):  
Jinhua Xiong ◽  
Linrui Wen ◽  
Fan Jiang ◽  
Yuhao Liu ◽  
Shijing Liang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Photocatalytic Hydrogen Evolution ◽  
Efficient Separation ◽  
2D Structure

A monolayer HNb3O8 nanosheet was prepared. Its unique 2D structure promoted the efficient separation of the photo-generated carriers, leading to an enhanced photocatalytic hydrogen evolution.

Noble-metal-free Ni3N/g-C3N4 photocatalysts with enhanced hydrogen production under visible light irradiation

2018 ◽  
Vol 47 (35) ◽  
pp. 12188-12196 ◽  
Author(s):  
Lu Chen ◽  
Huijuan Huang ◽  
Yuanhui Zheng ◽  
Wenhao Sun ◽  
Yi Zhao ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Noble Metal ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Evolution ◽  
Metal Free

Noble-metal-free Ni3N/g-C3N4 heterojunctions that show high photocatalytic hydrogen evolution activity comparable to platinized g-C3N4 were successfully synthesized.

Rationally Designed Ta3N5@ReS2 Heterojunctions for Promoted Photocatalytic Hydrogen Production

2021 ◽  
Author(s):  
Xiaoqiang Zhan ◽  
Zhi Fang ◽  
Bing Li ◽  
Haitao Zhang ◽  
Leyao Xu ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Photocatalytic Hydrogen Production ◽  
Photocatalytic Hydrogen Evolution ◽  
Highly Active ◽  
Adsorption Processes

Highly-active heterojunctions hold the pivotal function in photocatalytic hydrogen evolution reaction (HER). Herein, Ta3N5@ReS2 photocatalysts are rationally designed via the combination of template-assisted, hydrothermal and solution-adsorption processes, in which few...

scholarly journals Evidence for photosensitised hydrogen production from water in the absence of precious metals, redox-mediators and co-catalysts

2017 ◽  
Vol 19 (12) ◽  
pp. 8141-8147 ◽  
Author(s):  
S. Salzl ◽  
M. Ertl ◽  
G. Knör
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Precious Metals ◽  
Redox Mediators ◽  
Salt Solutions ◽  
Proton Reduction ◽  
Photocatalytic Hydrogen Evolution ◽  
Co Catalysts ◽  
Aqueous Salt Solutions ◽  
Earth Abundant

New approaches for sunlight-powered proton reduction and photocatalytic hydrogen evolution from aqueous salt solutions using earth-abundant components and molecular photosensitisers.

Three-dimensional assemblies of carbon nitride tubes as nanoreactors for enhanced photocatalytic hydrogen production

2020 ◽  
Vol 8 (1) ◽  
pp. 305-312 ◽  
Author(s):  
Chen Zhao ◽  
Qi Li ◽  
Ying Xie ◽  
Liping Zhang ◽  
Xudong Xiao ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Three Dimensional ◽  
Triazole Ring ◽  
Photocatalytic Hydrogen Production ◽  
Photocatalytic Hydrogen Evolution ◽  
Ring Group ◽  
Group Modification ◽  
Special Morphology

Three-dimensional assembly of carbon nitride tube was obtained from supramolecular precursor. The special morphology and triazole ring group modification endowed materials' enhanced photocatalytic hydrogen evolution property (71 mmol g−1 h−1).

scholarly journals Enhancing the activity of photocatalytic hydrogen evolution from CdSe quantum dots with a polyoxovanadate cluster

2020 ◽  
Vol 56 (62) ◽  
pp. 8762-8765 ◽  
Author(s):  
Emily H. Edwards ◽  
Alex A. Fertig ◽  
Kevin P. McClelland ◽  
Mahilet T. Meidenbauer ◽  
Saikat Chakraborty ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Metal Cluster ◽  
Cdse Quantum Dots ◽  
Photocatalytic Hydrogen Production ◽  
Photocatalytic Hydrogen Evolution

Adding metal-cluster hole scavengers enhances photocatalytic hydrogen production by quantum dots.

2D/2D heterojunction of Ti3C2/g-C3N4 nanosheets for enhanced photocatalytic hydrogen evolution

Nanoscale ◽  
2019 ◽  
Vol 11 (17) ◽  
pp. 8138-8149 ◽  
Author(s):  
Tongming Su ◽  
Zachary D. Hood ◽  
Michael Naguib ◽  
Lei Bai ◽  
Si Luo ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Production Efficiency ◽  
Photocatalytic Hydrogen Production ◽  
Photocatalytic Hydrogen Evolution

The separation of photogenerated carriers and photocatalytic hydrogen production efficiency was greatly enhanced by the 2D/2D heterojunction of Ti3C2/g-C3N4.

scholarly journals Metal organic framework-derived porous Fe2N nanocubes by rapid-nitridation for efficient photocatalytic hydrogen evolution

2020 ◽  
Vol 1 (5) ◽  
pp. 1161-1167
Author(s):  
Zhixing Cheng ◽  
Ali Saad ◽  
Samira Adimi ◽  
Haichuan Guo ◽  
Siqi Liu ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
High Efficiency ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Photocatalytic Hydrogen Evolution ◽  
Metal Organic ◽  
Organic Framework

A new means of producing MOF derived TMN materials, which in conjunction with suitable dyes, offer high-efficiency and low-cost avenues for making photocatalysts for hydrogen production.

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