Constructing 2D/2D interfacial contact in ReS2/TiO2 via Ti-S bond for efficient charge transfer in photocatalytic hydrogen production

2021 ◽  
Author(s):  
Yanan Wang ◽  
Rongrong Shi ◽  
Kai Song ◽  
Chunyang Liu ◽  
Fang He
Keyword(s):  
Charge Transfer ◽  
Hydrogen Production ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Photocatalytic Hydrogen Production ◽  
Interfacial Contact ◽  
Efficient Charge ◽  
Transport Path ◽  
Charge Separation Efficiency

Exploring and adjusting the transport path of photo-generated carriers is vital to promote charge separation efficiency and charge transfer ability for photocatalytic hydrogen performance of novel semiconductor composites. Herein, this...

Efficient photocatalytic hydrogen production by Mn0.05Cd0.95S nanoparticles anchored on cubic NiSe2

2020 ◽  
Vol 44 (35) ◽  
pp. 14879-14889
Author(s):  
Hua Liu ◽  
Teng Yan ◽  
Zhiliang Jin ◽  
Qingxiang Ma
Keyword(s):  
Hydrogen Production ◽  
Surface Activity ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Catalyst Activity ◽  
Critical Factors ◽  
Photocatalytic Hydrogen Production ◽  
Charge Separation Efficiency

In the field of catalysis, three critical factors for evaluating catalyst activity include charge separation efficiency, photoabsorption, and surface activity sites.

Spatially separated cocatalysts for efficient charge separation: a hollow Pt/CdS/N–ZnO/CoOx graphene microtubule with high stability for photocatalytic reactions and sustainable recycling

2019 ◽  
Vol 9 (24) ◽  
pp. 6899-6908 ◽  
Author(s):  
Yong Liang ◽  
Yuexing Chen ◽  
Maojun Zhao ◽  
Li Lin ◽  
Rongtao Duan ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Charge Separation ◽  
High Stability ◽  
Photocatalytic Oxidation ◽  
Separation Efficiency ◽  
Capillary Action ◽  
Efficient Charge ◽  
Charge Separation Efficiency ◽  
Photocatalytic Reactions

The spatially separated Pt/CdS/N–ZnO/CoOx graphene microtubule (PCNZCo-GM) with double cocatalysts is prepared by a capillary action assisted hydrothermal method for enhancing charge separation efficiency and photocatalytic oxidation ability.

Comparison of charge transfer dynamics in polypyridyl ruthenium sensitizers for solar cells and water splitting systems

2018 ◽  
Vol 20 (11) ◽  
pp. 7710-7720 ◽  
Author(s):  
Iwona Grądzka ◽  
Mateusz Gierszewski ◽  
Jerzy Karolczak ◽  
Marcin Ziółek
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Photoelectrochemical Cells ◽  
Dye Sensitized ◽  
Charge Separation Efficiency ◽  
Charge Transfer Dynamics ◽  
Sensitized Solar Cells

Standard ruthenium components of dye-sensitized solar cells (sensitizer N719) and dye-sensitized photoelectrochemical cells (sensitizer RuP) are investigated to compare their photodynamics and charge separation efficiency.

Ferroelectric enhanced Z-scheme P-doped g-C3N4/PANI/BaTiO3 ternary heterojunction with boosted visible-light photocatalytic water splitting

2019 ◽  
Vol 43 (17) ◽  
pp. 6753-6764 ◽  
Author(s):  
Qiannan Li ◽  
Yuguo Xia ◽  
Kangliang Wei ◽  
Xiaotong Ding ◽  
Shun Dong ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Water Splitting ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Photocatalytic Water Splitting ◽  
Surface Polarization ◽  
Production Activity ◽  
Charge Separation Efficiency ◽  
Visible Light Photocatalytic

Surface polarization promotes the charge separation efficiency of PCN/PANI/BTO ternary heterojunction, resulting in an enhanced visible-light photocatalytic hydrogen production activity.

Carbon quantum dot sensitized integrated Fe2O3@g-C3N4 core–shell nanoarray photoanode towards highly efficient water oxidation

2018 ◽  
Vol 6 (21) ◽  
pp. 9839-9845 ◽  
Author(s):  
Sha-Sha Yi ◽  
Jun-Min Yan ◽  
Qing Jiang
Keyword(s):  
Quantum Dot ◽  
Water Oxidation ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Core Shell ◽  
High Catalytic Activity ◽  
Carbon Quantum Dot ◽  
Efficient Charge ◽  
Oxidation Performance ◽  
Charge Separation Efficiency

The carbon quantum dot (CQD) sensitized integrated Ti:Fe2O3@g-C3N4 core–shell nanoarrays demonstrate superior PEC water oxidation performance which can be ascribed to efficient charge separation efficiency derived from the well-confined heterojunction structure together with the high catalytic activity of the CQDs for H2O2 decomposition.

Charge Carrier Transfer in Ta3N5 Photoanodes Prepared by Different Methods for Solar Water Splitting

2016 ◽  
Vol 69 (6) ◽  
pp. 631 ◽  
Author(s):  
Mingxue Li ◽  
Wenjun Luo ◽  
Liheng Yang ◽  
Xin Zhao ◽  
Zhigang Zou
Keyword(s):  
Electron Transfer ◽  
Charge Transfer ◽  
Water Splitting ◽  
Charge Separation ◽  
Preparation Method ◽  
Separation Efficiency ◽  
Interfacial Charge Transfer ◽  
Splitting Property ◽  
Charge Separation Efficiency ◽  
Interfacial Charge

The preparation method of a photoanode can affect its water splitting property. Here, as examples, we prepared Ta3N5 photoanodes by an electrophoresis deposition (EPD) method and an oxidation and nitridation of Ta foil (ONTF) method. The light harvest, interfacial charge transfer, and charge separation of the two Ta3N5 photoanodes were analysed to gain insight into the role of the preparation method on the water splitting property. The results suggested that the ONTF-prepared Ta3N5 showed a higher solar energy conversion efficiency, arising from its better interfacial charge transfer efficiency and higher charge separation efficiency. The higher charge separation efficiency was mainly attributed to good electron transfer, and the inter-particle connectivity was key for the electron transfer in the photoanodes. Especially, the dense, small particle structure of ONTF-prepared Ta3N5 was beneficial for increasing the connectivity between inter-particles. This comparison of preparation methods can be used as a reference for future photoanode preparation to improve the water splitting property of photoelectrochemical cells.

Hierarchical Z-scheme Fe2O3@ZnIn2S4 core–shell heterostructures with enhanced adsorption capacity enabling significantly improved photocatalytic CO2 reduction

CrystEngComm ◽  
2020 ◽  
Vol 22 (47) ◽  
pp. 8221-8227
Author(s):  
Zihan Zhao ◽  
Chuanxin Shi ◽  
Qi Shen ◽  
Wenjuan Li ◽  
Dandan Men ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Co2 Reduction ◽  
Core Shell ◽  
Adsorption Ability ◽  
Molecule Adsorption ◽  
Efficient Charge ◽  
Charge Separation Efficiency ◽  
Enhanced Adsorption

The challenge of sunlight-driven CO2 reduction is to achieve efficient photocatalysts with exceptional molecule adsorption ability and efficient charge-separation efficiency.

Z-scheme CdS/Co9S8-RGO for photocatalytic hydrogen production

2020 ◽  
Vol 7 (14) ◽  
pp. 2692-2701 ◽  
Author(s):  
Shuangshuang Kai ◽  
Baojuan Xi ◽  
Haibo Li ◽  
Shenglin Xiong
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Hydrogen Production ◽  
Hydrothermal Method ◽  
Evolution Rate ◽  
One Pot ◽  
Photocatalytic Hydrogen Production ◽  
Efficient Charge

All-solid-state Z-scheme CdS/Co9S8-RGO heterostructures are synthesized by a facile one-pot hydrothermal method followed by annealing, which exhibit a H2 evolution rate up to 4.82 mmol h−1 g−1 and a remarkable stability due to an efficient charge transfer and separation.

Z-scheme photocatalytic hydrogen production over WO3/g-C3N4 composite photocatalysts

RSC Advances ◽  
2014 ◽  
Vol 4 (41) ◽  
pp. 21405-21409 ◽  
Author(s):  
Hideyuki Katsumata ◽  
Yusuke Tachi ◽  
Tohru Suzuki ◽  
Satoshi Kaneco
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Production ◽  
Charge Separation ◽  
Photocatalytic Performance ◽  
Photocatalytic Hydrogen Production ◽  
Composite Photocatalysts ◽  
Efficient Charge

WO3/g-C3N4 catalysts exhibit excellent photocatalytic performance for H2 production from aqueous solution through the Z-scheme mechanism, which results in the efficient charge separation.

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