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

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%.

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Dendritic Au/TiO2 nanorod arrays for visible-light driven photoelectrochemical water splitting

Nanoscale ◽

10.1039/c3nr02766j ◽

2013 ◽

Vol 5 (19) ◽

pp. 9001 ◽

Cited By ~ 183

Author(s):

Fengli Su ◽

Tuo Wang ◽

Rui Lv ◽

Jijie Zhang ◽

Peng Zhang ◽

...

Keyword(s):

Visible Light ◽

Water Splitting ◽

Photoelectrochemical Water Splitting ◽

Nanorod Arrays ◽

Tio2 Nanorod ◽

Tio2 Nanorod Arrays ◽

Visible Light Driven

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Photoelectrochemical water splitting using TiO2 nanorod arrays coated with Zn-doped CdS

Journal of Materials Science ◽

10.1007/s10853-021-06008-8 ◽

2021 ◽

Vol 56 (18) ◽

pp. 11059-11070

Author(s):

Xichen Yu ◽

Qingqing Xing ◽

Xiaoping Zhang ◽

Hanlin Jiang ◽

Fengren Cao

Keyword(s):

Water Splitting ◽

Photoelectrochemical Water Splitting ◽

Nanorod Arrays ◽

Tio2 Nanorod ◽

Tio2 Nanorod Arrays

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Synergistic Promotion of Photoelectrochemical Water Splitting Efficiency of TiO2 Nanorod Arrays by Doping and Surface Modification

Journal of Materials Chemistry C ◽

10.1039/d1tc02816b ◽

2021 ◽

Author(s):

Liang Zhao ◽

Ding Chen ◽

Shang Xu ◽

Zhi Fang ◽

Lin Wang ◽

...

Keyword(s):

Surface Modification ◽

Surface Charge ◽

Water Splitting ◽

Charge Recombination ◽

Photoelectrochemical Water Splitting ◽

Nanorod Arrays ◽

Critical Factors ◽

Tio2 Nanorod ◽

Tio2 Nanorod Arrays ◽

Light Capture

Fast surface charge recombination and poor light capture capability are regarded as the two critical factors that hamper the photoelectrochemical (PEC) performance of photoanodes. In the present work, we employed...

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Three-dimensional plasmonic photoanode of Co3O4 nanosheets coated onto TiO2 nanorod arrays for visible-light-driven water splitting

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2019.04.053 ◽

2019 ◽

Vol 44 (29) ◽

pp. 14561-14570 ◽

Cited By ~ 5

Author(s):

Xin Zhao ◽

Wenzhong Wang ◽

Yujie Liang ◽

Lizhen Yao ◽

Junli Fu ◽

...

Keyword(s):

Visible Light ◽

Water Splitting ◽

Three Dimensional ◽

Nanorod Arrays ◽

Tio2 Nanorod ◽

Tio2 Nanorod Arrays ◽

Visible Light Driven

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Overall water splitting using (oxy)nitride photocatalysts

Pure and Applied Chemistry ◽

10.1351/pac200678122267 ◽

2006 ◽

Vol 78 (12) ◽

pp. 2267-2276 ◽

Cited By ~ 54

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.

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