A photo-responsive electrocatalyst: CdSe quantum dot sensitized WS2 nanosheets for hydrogen evolution in neutral solution

2018 ◽  
Vol 42 (22) ◽  
pp. 18021-18027 ◽  
Author(s):  
Yueyao Zhong ◽  
Bin Chang ◽  
Yongliang Shao ◽  
Yongzhong Wu ◽  
Xiaopeng Hao
Keyword(s):  
Quantum Dot ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Neutral Solution ◽  
Cdse Quantum Dot ◽  
Activity Enhancement ◽  
Ws2 Nanosheets

Under visible light irradiation, the photoinduced electrons help CdSe QD/WS2 electrocatalysts to achieve a notable HER activity enhancement.

Nanoengineered CdSe quantum dot–montmorillonite composites: an efficient photocatalyst under visible light irradiation

RSC Advances ◽  
2014 ◽  
Vol 4 (68) ◽  
pp. 35997-36005 ◽  
Author(s):  
Rajeev C. Chikate ◽  
Brijesh S. Kadu ◽  
Madhura A. Damle
Keyword(s):  
Quantum Dot ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Self Assembly ◽  
Indigo Carmine ◽  
Light Irradiation ◽  
Uniform Dispersion ◽  
Cdse Quantum Dot

Intercalated CdSe–CTAB–MMT nanocomposites with uniform dispersion of CdSe QD's are fabricated by a facile self-assembly approach that significantly enhances visible light induced photocatalytic degradation of Indigo Carmine.

A solution-processed, mercaptoacetic acid-engineered CdSe quantum dot photocathode for efficient hydrogen production under visible light irradiation

2015 ◽  
Vol 8 (5) ◽  
pp. 1443-1449 ◽  
Author(s):  
Bin Liu ◽  
Xu-Bing Li ◽  
Yu-Ji Gao ◽  
Zhi-Jun Li ◽  
Qing-Yuan Meng ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Quantum Dot ◽  
Visible Light ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Hydrogen Generation ◽  
Light Irradiation ◽  
Mercaptoacetic Acid ◽  
Cdse Quantum Dot ◽  
Neutral Water

We describe a simple, efficient and stable mercaptoacetic acid-engineered CdSe quantum dot photocathode for hydrogen generation by water-splitting from neutral water.

Efficient hydrogen evolution under visible light irradiation over BiVO4 quantum dot decorated screw-like SnO2 nanostructures

2017 ◽  
Vol 5 (21) ◽  
pp. 10338-10346 ◽  
Author(s):  
Mingzheng Xie ◽  
Zemin Zhang ◽  
Weihua Han ◽  
Xiuwen Cheng ◽  
Xiaoli Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Quantum Dot ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Conduction Band ◽  
Visible Light Irradiation ◽  
Carrier Lifetime ◽  
Light Irradiation ◽  
Photogenerated Carrier ◽  
Sno2 Nanostructures

Elevated conduction band level and prolonged photogenerated carrier lifetime remarkably enhance the visible-light catalytic activity of BiVO4 in hydrogen evolution.

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.

CdS/Ag2S/g-C3N4 ternary composites with superior photocatalytic performance for hydrogen evolution under visible light irradiation

2021 ◽  
Vol 50 (9) ◽  
pp. 3253-3260 ◽  
Author(s):  
Shan Zhao ◽  
Junbiao Wu ◽  
Yan Xu ◽  
Xia Zhang ◽  
Yide Han ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Synergic Effect

CdS/Ag2S/g-C3N4 ternary composites showed excellent photocatalytic performance toward H2 evolution. Their improved photocatalytic activity could be attributed not only to the synergic effect, but also to the introduction of Ag2S.

D–π–A-type triphenylamine dye covalent-functionalized g-C3N4 for highly efficient photocatalytic hydrogen evolution

2020 ◽  
Vol 10 (6) ◽  
pp. 1609-1618 ◽  
Author(s):  
Chao Zhang ◽  
Jiandong Liu ◽  
Xingliang Liu ◽  
Shiai Xu
Keyword(s):  
Reaction Mechanism ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Evolution ◽  
Highly Efficient

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

Sign in / Sign up

Export Citation Format

Share Document