Molecular Mechanism of Water Oxidation Reaction at Photo-Irradiated TiO2 and Related Metal Oxide Surfaces

2010 ◽  
Vol 162 ◽  
pp. 1-27 ◽  
Author(s):  
Ryuhei Nakamura ◽  
Yoshihiro Nakato
Keyword(s):  
Visible Light ◽  
Metal Oxides ◽  
Molecular Mechanism ◽  
Water Oxidation ◽  
Nucleophilic Attack ◽  
Electron Transfer Mechanism ◽  
Metal Oxide Surfaces ◽  
Responsive Materials ◽  
Solar Water Splitting ◽  
Water Photooxidation

Recent studies on the molecular mechanism of water photooxidation (or oxygen photoevolution) reaction on TiO2 and related metal oxides or oxynitrides are reviewed. It is shown that a lot of experimental and theoretical studies give definite support to our recently proposed new mechanism, called “nucleophilic attack of H2O” or “Lewis acid-base” mechanism. The new mechanism has the prominent features that it possesses energetic and kinetics different from the conventional electron-transfer mechanism and can explain water photooxidation reaction on visible-light responsive metal oxides or oxynitrides, contrary to the conventional one. The result indicates that the new mechanism is useful for searching for new efficient visible-light responsive materials for solar water splitting.

A wide visible light driven complex perovskite Ba(Mg1/3Ta2/3)O3−xNy photocatalyst for water oxidation and reduction

2017 ◽  
Vol 5 (35) ◽  
pp. 18870-18877 ◽  
Author(s):  
Junyan Cui ◽  
Taifeng Liu ◽  
Yu Qi ◽  
Dan Zhao ◽  
Mingjun Jia ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Visible Light ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Absorption Edge ◽  
Water Oxidation ◽  
Complex Perovskite ◽  
Nitrogen Doped ◽  
Solar Water Splitting ◽  
Visible Light Driven

A new nitrogen-doped metal oxide photocatalyst Ba(Mg1/3Ta2/3)O3−xNy (BMTON) with an absorption edge of ca. 560 nm was synthesized, showing obvious H2 or O2-evolution half reaction activities under visible light irradiation for promising solar water splitting.

scholarly journals Visible light promoted photocatalytic water oxidation: effect of metal oxide catalyst composition and light intensity

2015 ◽  
Vol 5 (10) ◽  
pp. 4760-4764 ◽  
Author(s):  
Dominic Walsh ◽  
Noelia M. Sanchez-Ballester ◽  
Valeska P. Ting ◽  
Simon R. Hall ◽  
Lui R. Terry ◽  
...  
Keyword(s):  
Transition Metal ◽  
Light Intensity ◽  
Visible Light ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Water Oxidation ◽  
Oxide Catalyst ◽  
Low Cost ◽  
Catalyst Composition ◽  
Oxidation Effect

Simply prepared low-cost nanoparticulate transition metal oxides were used as catalysts in visible light promoted water oxidations. The activity using daylight equivalent light intensities was assessed.

scholarly journals Bi2Fe4O9 thin films as novel visible-light-active photoanodes for solar water splitting

2019 ◽  
Vol 7 (16) ◽  
pp. 9537-9541 ◽  
Author(s):  
Yaqiong Wang ◽  
Matyas Daboczi ◽  
Camilo A. Mesa ◽  
Sinclair Ryley Ratnasingham ◽  
Ji-Seon Kim ◽  
...  
Keyword(s):  
Thin Films ◽  
Visible Light ◽  
Water Splitting ◽  
Water Oxidation ◽  
Faradaic Efficiency ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Visible Light Active ◽  
First Time

Photoelectrocatalytic water oxidation is reported for Bi2Fe4O9 for the first time with a faradaic efficiency of 82%.

Carrier Engineering of Zr-mediated Ta3N5 Film as Efficient Photoanode for Solar Water Splitting

2021 ◽  
Author(s):  
Xin Zou ◽  
Xueyang Han ◽  
Chengxiong Wang ◽  
Yunkun Zhao ◽  
Chun Du ◽  
...  
Keyword(s):  
Band Structure ◽  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Photoelectrochemical Water Splitting ◽  
Promising Candidate ◽  
Visible Light Absorption ◽  
Solar Water ◽  
Solar Water Splitting

Ta3N5 is regarded as a promising candidate material with adequate visible light absorption and band structure for photoelectrochemical water splitting. However, the performance of Ta3N5 is severely limited by the...

Activating Metal Oxides Nanocatalysts for Electrocatalytic Water Oxidation by Quenching-Induced Near-Surface Metal Atom Functionality

2021 ◽  
Vol 143 (35) ◽  
pp. 14169-14177
Author(s):  
Changchun Ye ◽  
Juzhe Liu ◽  
Qinghua Zhang ◽  
Xiaojing Jin ◽  
Yun Zhao ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Metal Atom ◽  
Water Oxidation ◽  
Near Surface ◽  
Surface Metal ◽  
Surface Metal Atom

Tetragonal Tungsten Bronze Type Sn(II)-Based Quaternary Oxides: A New Type of Visible-Light-Absorbing Semiconductors for Photoelectrochemical Water Oxidation

2021 ◽  
Author(s):  
Yalong Zou ◽  
Jiabo Le ◽  
Yufeng Cao ◽  
Na An ◽  
Yang Zhou ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Oxidation ◽  
Tungsten Bronze ◽  
Complex Oxides ◽  
Tetragonal Tungsten Bronze ◽  
Visible Light Absorption ◽  
New Type ◽  
Hydrogen Fuels ◽  
Photoelectrochemical Water Oxidation ◽  
Pec Water Splitting

The attractive photoelectrochemical (PEC) water splitting for hydrogen fuels always desires new semiconductors which provide stronger visible light absorption with suitable band positions. Sn(II) complex oxides are expected to offer...

LaTaON2-BaTaO2N solid solution for water oxidation

2021 ◽  
Author(s):  
Yuwei Zhang ◽  
Xiaoxiang Xu
Keyword(s):  
Solid Solution ◽  
Visible Light ◽  
Water Oxidation ◽  
Oxidation Reactions ◽  
Visible Light Active

Solid solution of LaTaON2 and BaTaO2N, i.e., La1-xBaxTaO1+yN2-y (0 ≤ x, y ≤ 1), have been investigated as visible-light-active photocatalysts for water oxidation reactions. A number of important parameters such...

scholarly journals Au decorated BiVO4 inverse opal for efficient visible light driven water oxidation

RSC Advances ◽  
2021 ◽  
Vol 11 (15) ◽  
pp. 8751-8758
Author(s):  
Xiaonong Wang ◽  
Xiaoxia Li ◽  
Jingxiang Low
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Water Oxidation ◽  
Inverse Opal ◽  
Photocatalytic Water Splitting ◽  
Visible Light Driven

Photocatalytic water splitting provides an effective way to prepare hydrogen and oxygen.

Sign in / Sign up

Export Citation Format

Share Document