Defect-rich decorated TiO2 nanowires for super-efficient photoelectrochemical water splitting driven by visible light

2015 ◽  
Vol 8 (11) ◽  
pp. 3363-3373 ◽  
Author(s):  
Md Anisur Rahman ◽  
Samad Bazargan ◽  
Saurabh Srivastava ◽  
Xiongyao Wang ◽  
Marwa Abd-Ellah ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Conversion Efficiency ◽  
Photoelectrochemical Water Splitting ◽  
Visible Light Region ◽  
Tio2 Nanowires ◽  
High Conversion Efficiency ◽  
Splitting Property ◽  
Onset Potential ◽  
Light Region

Defect-rich 1D TiO2 nanostructures show excellent photoelectrochemical water splitting property in the visible light region with a low onset potential of 0.3 V vs. RHE and a remarkably high conversion efficiency of 3.6%.

Enhancing visible-light photoelectrochemical water splitting through transition-metal doped TiO2 nanorod arrays

2014 ◽  
Vol 2 (42) ◽  
pp. 17820-17827 ◽  
Author(s):  
Chengzhi Wang ◽  
Zhuo Chen ◽  
Haibo Jin ◽  
Chuanbao Cao ◽  
Jingbo Li ◽  
...  
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Transition Metal Doping ◽  
Nanorod Arrays ◽  
Visible Light Region ◽  
Light Region ◽  
Tio2 Nanorod Arrays ◽  
Metal Doped

Transition metal doping substantially improves the performance of TiO2 nanorods for photoelectrochemical water splitting in the visible light region.

Overall water splitting using (oxy)nitride photocatalysts

2006 ◽  
Vol 78 (12) ◽  
pp. 2267-2276 ◽  
Author(s):  
Kazuhiko Maeda ◽  
Kentaro Teramura ◽  
Nobuo Saito ◽  
Yasunobu Inoue ◽  
Hisayoshi Kobayashi ◽  
...  
Keyword(s):  
Solid Solution ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Band Gap ◽  
Water Splitting ◽  
Electronic Configuration ◽  
Oxide Nanoparticles ◽  
Visible Light Region ◽  
Overall Water Splitting ◽  
Light Region

Oxynitride photocatalysts with d10 electronic configuration are presented as effective non-oxide catalysts for overall water splitting. Germanium nitride (β-Ge3N4) having a band gap of 3.8-3.9 eV modified with RuO2 nanoparticles as a cocatalyst is shown to achieve stoichiometric decomposition of H2O into H2 and O2 under UV irradiation (λ > 200 nm). A novel solid solution of GaN and ZnO, (Ga1-xZnx)(N1-xOx), with a band gap of 2.4-2.8 eV (depending on composition) achieves overall water splitting under visible light (λ > 400 nm) when loaded with an appropriate cocatalyst. The narrower band gap of the solid solution is attributed to the bonding between Zn and N atoms at the top of the valence band. The photocatalytic activity of (Ga1-xZnx)(N1-xOx) for overall water splitting is strongly dependent on both the cocatalyst and the crystallinity and composition of the material. The quantum efficiency of (Ga1-xZnx)(N1-xOx) with Rh and Cr mixed-oxide nanoparticles is 2-3 % at 420-440 nm, which is the highest reported efficiency for overall water splitting in the visible-light region.

scholarly journals Photocatalytic and water-splitting properties of TiO2 and Ag–TiO2 films in the visible light region

AIP Advances ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 075118
Author(s):  
Ly Ngoc Tai ◽  
Pham Duy Long ◽  
Ngo Thi Hong Le ◽  
Le Van Hong ◽  
Pham The Linh ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Tio2 Films ◽  
Visible Light Region ◽  
Light Region

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...

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