NiSe 2 as Co‐Catalyst with CdS: Nanocomposites for High‐Performance Photodriven Hydrogen Evolution under Visible‐Light Irradiation

ChemPlusChem ◽  
2019 ◽  
Vol 84 (7) ◽  
pp. 999-1010 ◽  
Author(s):  
Shiwen Du ◽  
Chunhe Li ◽  
Xiao Lin ◽  
Wangping Xu ◽  
Xiang Huang ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
High Performance ◽  
Light Irradiation ◽  
Co Catalyst ◽  
Cds Nanocomposites

scholarly journals Photocatalytic hydrogen evolution by co-catalyst-free TiO2/C bulk heterostructures synthesized under mild conditions

RSC Advances ◽  
2020 ◽  
Vol 10 (21) ◽  
pp. 12519-12534 ◽  
Author(s):  
Claudio Imparato ◽  
Giuseppina Iervolino ◽  
Marzia Fantauzzi ◽  
Can Koral ◽  
Wojciech Macyk ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Evolution ◽  
Mild Conditions ◽  
Catalyst Free

Defective TiO2/C bulk heterostructures exhibit visible light photoresponsivity and remarkable H2 evolution rates under both UV and visible light irradiation.

scholarly journals Preparation of NiS/ZnIn2S4 as a superior photocatalyst for hydrogen evolution under visible light irradiation

2013 ◽  
Vol 4 ◽  
pp. 949-955 ◽  
Author(s):  
Liang Wei ◽  
Yongjuan Chen ◽  
Jialin Zhao ◽  
Zhaohui Li
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Evolution ◽  
X Ray ◽  
Transmission Electron

In this study, NiS/ZnIn2S4 nanocomposites were successfully prepared via a facile two-step hydrothermal process. The as-prepared samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM). Their photocatalytic performance for hydrogen evolution under visible light irradiation was also investigated. It was found that the photocatalytic hydrogen evolution activity over hexagonal ZnIn2S4 can be significantly increased by loading NiS as a co-catalyst. The formation of a good junction between ZnIn2S4 and NiS via the two step hydrothermal processes is beneficial for the directional migration of the photo-excited electrons from ZnIn2S4 to NiS. The highest photocatalytic hydrogen evolution rate (104.7 μmol/h), which is even higher than that over Pt/ZnIn2S4 nanocomposite (77.8 μmol/h), was observed over an optimum NiS loading amount of 0.5 wt %. This work demonstrates a high potential of the developing of environmental friendly, cheap noble-metal-free co-catalyst for semiconductor-based photocatalytic hydrogen evolution.

Noble-metal-free nickel phosphide modified CdS/C3N4 nanorods for dramatically enhanced photocatalytic hydrogen evolution under visible light irradiation

2017 ◽  
Vol 46 (40) ◽  
pp. 13793-13801 ◽  
Author(s):  
Tengfei Wu ◽  
Peifang Wang ◽  
Jin Qian ◽  
Yanhui Ao ◽  
Chao Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Noble Metal ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Nickel Phosphide ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Evolution ◽  
Metal Free ◽  
Highly Efficient

A highly efficient noble metal free Ni2P–CdS/g-C3N4 composite was constructed based on the concept of combining heterojunction engineering with co-catalyst modification.

High-performance hydrogen evolution of NiB/ZnCdS under visible light irradiation

2020 ◽  
Vol 45 (15) ◽  
pp. 8234-8242 ◽  
Author(s):  
Limin Song ◽  
Shujuan Zhang ◽  
Dan Liu ◽  
Shuhan Sun ◽  
Junfu Wei
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
High Performance ◽  
Light Irradiation

Metallic 1T-LixMoS2 co-catalyst enhanced photocatalytic hydrogen evolution over ZnIn2S4 floriated microspheres under visible light irradiation

2018 ◽  
Vol 8 (5) ◽  
pp. 1375-1382 ◽  
Author(s):  
Junying Liu ◽  
Wenjian Fang ◽  
Zhidong Wei ◽  
Zhen Qin ◽  
Zhi Jiang ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Active Sites ◽  
Light Irradiation ◽  
High Electrical Conductivity ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Evolution

Metallic 1T-LixMoS2 is an effective co-catalyst for photocatalytic hydrogen evolution over ZnIn2S4 because of its high electrical conductivity and high densities of active sites.

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.

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