Preparation of high efficiency visible light activated Pt/CdS photocatalyst for solar hydrogen production

2007 ◽  
Author(s):  
Cunping Huang ◽  
Bello Illiassou ◽  
Ali T-Raissi ◽  
Nazim Muradov
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
High Efficiency ◽  
Solar Hydrogen ◽  
Solar Hydrogen Production

scholarly journals Controlled Biosynthesis of ZnCdS Quantum Dots with Visible-Light-Driven Photocatalytic Hydrogen Production Activity

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1357
Author(s):  
Shiyue Qi ◽  
Yahui Miao ◽  
Ji Chen ◽  
Huichao Chu ◽  
Bingyang Tian ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Large Scale ◽  
High Efficiency ◽  
Extracellular Proteins ◽  
Molar Ratio ◽  
Solar Hydrogen ◽  
Production Activity ◽  
Solar Hydrogen Production

The development of visible-light-responsive photocatalysts with high efficiency, stability, and eco-friendly nature is beneficial to the large-scale application of solar hydrogen production. In this work, the production of biosynthetic ternary ZnCdS photocatalysts (Eg = 2.35–2.72 eV) by sulfate-reducing bacteria (SRB) under mild conditions was carried out for the first time. The huge amount of biogenic S2− and inherent extracellular proteins (EPs) secreted by SRB are important components of rapid extracellular biosynthesis. The ternary ZnCdS QDs at different molar ratios of Zn2+and Cd2+ from 15:1 to 1:1 were monodisperse spheres with good crystallinity and average crystallite size of 6.12 nm, independent of the molar ratio of Cd2+ to Zn2+. All the ZnCdS QDs had remarkable photocatalytic activity and stability for hydrogen evolution under visible light, without noble metal cocatalysts. Especially, ZnCdS QDs at Zn/Cd = 3:1 showed the highest H2 production activity of 3.752 mmol·h−1·g−1. This excellent performance was due to the high absorption of visible light, the high specific surface area, and the lower recombination rate between photoexcited electrons and holes. The adhered inherent EPs on the ZnCdS QDs slowed down the photocorrosion and improved the stability in photocatalytic hydrogen evolution. This study provides a new direction for solar hydrogen production.

Photocatalysis and solar hydrogen production

2007 ◽  
Vol 79 (11) ◽  
pp. 1917-1927 ◽  
Author(s):  
Akihiko Kudo
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Band Gap ◽  
Water Splitting ◽  
Environmental Issues ◽  
Apparent Quantum Yield ◽  
Solar Hydrogen ◽  
Visible Light Driven ◽  
Solar Hydrogen Production ◽  
Narrow Band Gap Semiconductors

Photocatalytic water splitting is a challenging reaction because it is an ultimate solution to energy and environmental issues. Recently, many new powdered photocatalysts for water splitting have been developed. For example, a NiO (0.2 wt %)/NaTaO3:La (2 %) photocatalyst with a 4.1-eV band gap showed high activity for water splitting into H2 and O2 with an apparent quantum yield of 56 % at 270 nm. Overall water splitting under visible light irradiation has been achieved by construction of a Z-scheme photocatalysis system employing visible-light-driven photocatalysts, Ru/SrTiO3:Rh and BiVO4 for H2 and O2 evolution, and an Fe3+/Fe2+ redox couple as an electron relay. Moreover, highly efficient sulfide photocatalysts for solar hydrogen production in the presence of electron donors were developed by making solid solutions of ZnS with AgInS2 and CuInS2 of narrow band gap semiconductors. Thus, the database of powdered photocatalysts for water splitting has become plentiful.

In situ fabrication of highly crystalline CdS decorated Bi2S3 nanowires (nano-heterostructure) for visible light photocatalyst application

RSC Advances ◽  
2016 ◽  
Vol 6 (28) ◽  
pp. 23508-23517 ◽  
Author(s):  
Rajendra P. Panmand ◽  
Yogesh A. Sethi ◽  
Rajashree S. Deokar ◽  
Datta J. Late ◽  
Haribhau M. Gholap ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Solvothermal Method ◽  
Cds Nanoparticles ◽  
Solar Hydrogen ◽  
Visible Light Photocatalyst ◽  
In Situ Fabrication ◽  
Solar Hydrogen Production ◽  
Facile Solvothermal Method

Herein, we have demonstrated the in situ synthesis of the orthorhombic Bi2S3 nanowires decorated with hexagonal CdS nanoparticles by facile solvothermal method. The heterostructures have been used as photocatalyst for solar hydrogen production.

Cu2O Decorated with Cocatalyst MoS2 for Solar Hydrogen Production with Enhanced Efficiency under Visible Light

2014 ◽  
Vol 118 (26) ◽  
pp. 14238-14245 ◽  
Author(s):  
Yu-Fei Zhao ◽  
Zhi-Yu Yang ◽  
Yu-Xia Zhang ◽  
Lin Jing ◽  
Xin Guo ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Solar Hydrogen ◽  
Solar Hydrogen Production

scholarly journals A metal sulfide photocatalyst composed of ubiquitous elements for solar hydrogen production

2016 ◽  
Vol 52 (47) ◽  
pp. 7470-7473 ◽  
Author(s):  
Y. Shiga ◽  
N. Umezawa ◽  
N. Srinivasan ◽  
S. Koyasu ◽  
E. Sakai ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Hydrogen Production ◽  
Dft Calculations ◽  
Visible Light ◽  
Density Functional ◽  
Metal Sulfide ◽  
Tin Sulfide ◽  
Functional Theory ◽  
Solar Hydrogen ◽  
Solar Hydrogen Production

A visible-light-sensitive tin sulfide photocatalyst was designed based on a ubiquitous element strategy and density functional theory (DFT) calculations.

Synthesis and structural analysis of visible light photocatalyst, ZnBiGaO4 for photocatalytic solar hydrogen production

2009 ◽  
Vol 34 (5) ◽  
pp. 404-411 ◽  
Author(s):  
Bharat. B. Kale ◽  
Jin-Ook Baeg ◽  
Ki-jeong Kong ◽  
Sang-Jin Moon ◽  
Sang Mi Lee ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Hydrogen Production ◽  
Visible Light ◽  
Solar Hydrogen ◽  
Visible Light Photocatalyst ◽  
Solar Hydrogen Production
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