Photocatalytic water oxidation over PbCrO4 with 2.3 eV band gap in IO3−/I− redox mediator under visible light

RSC Advances ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 1452-1455 ◽  
Author(s):  
Y. Miseki ◽  
O. Kitao ◽  
K. Sayama
Keyword(s):  
Electronic Structure ◽  
Optical Absorption ◽  
Visible Light ◽  
Band Gap ◽  
Water Oxidation ◽  
Redox Mediator ◽  
Absorption Properties ◽  
Oxidation Activity

PbCrO4 which possesses attractive optical absorption properties (BG: 2.3 eV) and electronic structure showed photocatalyzed water oxidation activity in the presence of IO3− ions.

Crystal structure and optical absorption properties of Er and Yb doped InTaO4 and InTaO4-yNy as photocatalysts under visible light

2020 ◽  
Vol 739 ◽  
pp. 136998
Author(s):  
Juan Cruz-Puerto ◽  
Cristina Ramirez-Carrillo ◽  
Jorge Puga-Lechuga ◽  
Pablo de la Mora ◽  
Gustavo Tavizon
Keyword(s):  
Crystal Structure ◽  
Optical Absorption ◽  
Visible Light ◽  
Absorption Properties

Effect of Calcination Temperature on Characterization and Photocatalytic Activity of Cd0.6Zn0.4S/TiO2 Hierarchical Heterostructure

2015 ◽  
Vol 1092-1093 ◽  
pp. 980-983
Author(s):  
Wei Chang ◽  
Xiao Sai Ren ◽  
Guo Rui Yang ◽  
Wei Yan ◽  
Run Jun Sun
Keyword(s):  
Photocatalytic Activity ◽  
Optical Absorption ◽  
Visible Light ◽  
Band Gap ◽  
Hydrothermal Method ◽  
Calcination Temperature

The Cd0.6Zn0.4S/TiO2 hierarchical heterostructures were successfully fabricated by combining the electrospinning technology and hydrothermal method. The effect of calcination temperature of TiO2 on the characteristic and photocatalytic activity of Cd0.6Zn0.4S/TiO2 were investigated. The morphology, crystalinity, composition and band gap of Cd0.6Zn0.4S/TiO2 were characterized. The results indicated the optical absorption and photocataytic properties of Cd0.6Zn0.4S/TiO2 were obviously affected by the TiO2 calcination temperature. When the calcination temperature was 500°C, the Zn0.6Cd0.4S/TiO2 exhibited an enhanced photocatalytic activity for degradation of RhB under visible light.

Synthesis and photophysical properties of barium indium oxides

2002 ◽  
Vol 17 (9) ◽  
pp. 2201-2204 ◽  
Author(s):  
J. Yin ◽  
Z. Zou ◽  
J. Ye
Keyword(s):  
Optical Absorption ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Diffuse Reflectance Spectroscopy ◽  
Photophysical Properties ◽  
Light Irradiation ◽  
X Ray Diffraction ◽  
Absorption Properties ◽  
Indium Oxides ◽  
Uv Visible

Barium indium oxides (BaIn2O4, Ba4In6O13, Ba2In2O5, Ba3In2O6, and Ba5In2O8) were synthesized by the citric process and characterized by powder x-ray diffraction. The optical absorption properties of these compounds were investigated by UV–visible diffuse reflectance spectroscopy. It was found that with the increase of the mole ratio of In2O3 in the formula the optical absorption edges of these oxides shift to the longer wavelength side monotonically. The photocatalytic H2 and O2 evolutions under visible light irradiation (λ > 420 nm) from aqueous CH3OH/H2O and AgNO3/H2O solutions were performed. Among these oxides, BaIn2O4 was the most stable compound, and other compounds were not stable chemically in the case of water and visible light irradiation.

scholarly journals Electronic structure effects on catalytic water oxidation activity by layered manganese oxide phases

2020 ◽  
Author(s):  
Michael Zdilla ◽  
Daniel R Strongin ◽  
John P Perdew ◽  
Eric Borguet ◽  
Michael L Klein ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Manganese Oxide ◽  
Water Oxidation ◽  
Oxidation Activity ◽  
Oxide Phases ◽  
Layered Manganese Oxide

Nanoporous Ta3N5via electrochemical anodization followed by nitridation for solar water oxidation

2020 ◽  
Vol 49 (42) ◽  
pp. 15023-15033
Author(s):  
Pran Krisna Das ◽  
Maheswari Arunachalam ◽  
Kanase Rohini Subhash ◽  
Young Jun Seo ◽  
Kwang-Soon Ahn ◽  
...  
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
Water Splitting ◽  
Water Oxidation ◽  
Narrow Band ◽  
Tantalum Nitride ◽  
Electrochemical Anodization ◽  
Visible Light Driven ◽  
Solar Water Oxidation ◽  
Pec Water Splitting

Nanoporous tantalum nitride (Ta3N5) is a promising visible-light-driven photoanode for photoelectrochemical (PEC) water splitting with a narrow band gap of approximately 2.0 eV.

In situ formation of a molecular cobalt(iii)/AgCl photocatalyst for visible-light water oxidation

2021 ◽  
Author(s):  
Hiroto Mogi ◽  
Megumi Okazaki ◽  
Shunta Nishioka ◽  
Kazuhiko Maeda
Keyword(s):  
Visible Light ◽  
Water Oxidation ◽  
Wide Bandgap ◽  
Oxidation Activity ◽  
Light Water ◽  
Physical Connection ◽  
In Situ Formation

A unique photocatalyst that consists of a molecular Co(iii) species and wide-bandgap AgCl is presented. Even without a physical connection between the two components, the Co(iii)/AgCl photocatalyst showed water oxidation activity under visible light.

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