Ti3C2Tx MXene-derived amorphous TiO2-C nanosheet cocatalysts coupled CdS nanostructures for enhanced photocatalytic hydrogen evolution

2020 ◽  
Vol 530 ◽  
pp. 147247 ◽  
Author(s):  
Na Zhao ◽  
Yang Hu ◽  
Jinlong Du ◽  
Gang Liu ◽  
Bowei Dong ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Photocatalytic Hydrogen Evolution ◽  
Amorphous Tio2 ◽  
Cds Nanostructures

scholarly journals Application of two-dimensional sandwich structure supported Pt single-atom catalyst in photocatalytic hydrogen evolution: first principle

2021 ◽  
Author(s):  
yanshuai li ◽  
shizhi dong ◽  
bingshuai zhu ◽  
ruichuan li ◽  
wenlong shang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Sandwich Structure ◽  
High Efficiency ◽  
Dft Method ◽  
Single Atom ◽  
Two Dimensional ◽  
Innovative Design ◽  
Photocatalytic Hydrogen Evolution ◽  
Amorphous Tio2 ◽  
Design Ideas

The preparation of hydrogen by photocatalytic principle is an important subject in the future energy direction. This article intends to design the catalytic structure of a crystalline (amorphous) TiO2/two-dimensional MoS2 sandwich structure supporting a single-atom, and explore the effect of this special structure on the photocatalytic reaction.Calculating the effective mass, electrostatic potential, light absorption spectrum and other related properties by DFT method, the analysis shows that the sandwich structure catalyst has good carrier transfer ability and electron-hole separation ability. Except for the Pt@Amorphousr-TiO2/MoS2 sandwich structure single-atom catalyst, which only has an excellent effect on the oxygen evolution of water, the rest of the interlayer catalysts have the two characteristics of photocatalytic hydrogen evolution and oxygen evolution.The new catalyst designed in this paper has innovative design ideas and high-efficiency research and development value.

Highly Dispersive Deposition of Pt Nanoparticles on CdS Nanostructures for Photocatalytic Hydrogen Evolution

2012 ◽  
Vol 41 (10) ◽  
pp. 1325-1327 ◽  
Author(s):  
Masanori Sakamoto ◽  
Anke Xiong ◽  
Ryo Kanakubo ◽  
Takahiro Ikeda ◽  
Taizo Yoshinaga ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Pt Nanoparticles ◽  
Photocatalytic Hydrogen Evolution ◽  
Cds Nanostructures

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.

Tuning of the Oxygen Species Linker on the Surface of Polymeric Carbon Nitride to Promote the Photocatalytic Hydrogen Evolution Performance

ChemSusChem ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3605-3613 ◽  
Author(s):  
Qin Lei ◽  
Rongzhi Chen ◽  
Yurong Zhao ◽  
Huanyu Chen ◽  
Xinxin Long ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Oxygen Species ◽  
Photocatalytic Hydrogen Evolution ◽  
Polymeric Carbon

Copolymerization of urea and murexide for efficient photocatalytic hydrogen evolution and tetracycline degradation

2021 ◽  
Author(s):  
Zhilu Du ◽  
Xinyu Zhao ◽  
Yingnan Zhao ◽  
Huiying Sun ◽  
Yingqi Li ◽  
...  
Keyword(s):  
Small Molecules ◽  
Hydrogen Evolution ◽  
Effective Strategy ◽  
Structure Property ◽  
Photocatalytic Hydrogen Evolution ◽  
Property Relationship ◽  
Structure Property Relationship ◽  
Tetracycline Degradation ◽  
Depth Study

Copolymerization of urea and small molecules is an effective strategy to modify g-C3N4. To in-depth study the important effects of the introduction of small molecular moiety on the structure-property relationship...

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