scholarly journals Black Si-doped TiO2 nanotube photoanode for high-efficiency photoelectrochemical water splitting

RSC Advances ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 5652-5660 ◽  
Author(s):  
Zhenbiao Dong ◽  
Dongyan Ding ◽  
Ting Li ◽  
Congqin Ning
Keyword(s):  
Water Splitting ◽  
High Efficiency ◽  
Argon Atmosphere ◽  
Tio2 Nanotube ◽  
Photoelectrochemical Water Splitting ◽  
Metal Reduction ◽  
Doped Tio2 ◽  
Si Doped

Black Si-doped TiO2 (Ti–Si–O) nanotubes were fabricated through Zn metal reduction of the Ti–Si–O nanotubes on Ti–Si alloy in an argon atmosphere.

Black TiO2 nanotube arrays for high-efficiency photoelectrochemical water-splitting

2014 ◽  
Vol 2 (23) ◽  
pp. 8612-8616 ◽  
Author(s):  
Houlei Cui ◽  
Wei Zhao ◽  
Chongyin Yang ◽  
Hao Yin ◽  
Tianquan Lin ◽  
...  
Keyword(s):  
Water Splitting ◽  
High Efficiency ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Photoelectrochemical Water Splitting ◽  
Nanotube Arrays ◽  
Titania Nanotube Arrays ◽  
Black Tio2 ◽  
Titania Nanotube ◽  
First Time

Black titania nanotube arrays are prepared for the first time, which exhibit an excellent photoelectrochemical water-splitting performance.

Microwave-assisted preparation of self-doped TiO2 nanotube arrays for enhanced photoelectrochemical water splitting

2015 ◽  
Vol 3 (2) ◽  
pp. 699-705 ◽  
Author(s):  
Hui Li ◽  
Jiangqiong Chen ◽  
Zhengbin Xia ◽  
Junheng Xing
Keyword(s):  
Water Splitting ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Photoelectrochemical Water Splitting ◽  
Nanotube Arrays ◽  
Chemical Reduction Method ◽  
Doped Tio2 ◽  
Microwave Assisted

Bulk abundant Ti3+ self-doped TiO2 nanotube arrays are prepared by a microwave-assisted chemical reduction method with NaBH4.

Surface-reduced Si-doped TiO2 nanotubes for high-efficiency photoelectrochemical water splitting

2019 ◽  
Vol 12 (06) ◽  
pp. 1940004
Author(s):  
Dawei Si ◽  
Zhenbiao Dong ◽  
Ting Li ◽  
Dongyan Ding ◽  
Congqin Ning
Keyword(s):  
Water Splitting ◽  
High Efficiency ◽  
Photocurrent Density ◽  
Reduction Reaction ◽  
Photoelectrochemical Water Splitting ◽  
Defect States ◽  
Photogenerated Electrons ◽  
Long Time ◽  
Si Doped

TiO2 is a promising photocatalyst in the reaction of water splitting for hydrogen. Here, we used NaBH4 reduction reaction to introduce [Formula: see text]/VO defect states into Si-doped TiO2 nanotubes and investigated the photoelectrochemical water splitting properties. It was found that the photocatalytic activity was improved through NaBH4 reduction because of the existence of [Formula: see text]/VO. The defect states ([Formula: see text]/VO) could play a role of capture trap and accelerate the separation of photogenerated electrons and holes. The photocurrent density of the Si-doped TiO2 nanotubes reduced for 3[Formula: see text]h was 1.5[Formula: see text]mA/cm2 compared to 0.7[Formula: see text]mA/cm2 of the unreduced nanotubes. The conversion efficiency was 0.7%, which was almost 4 times than that of pure TiO2. On the other hand, reduction for a long time would generate excess defect states and thus cause the decrease of photocurrent density. Excess defect states could act as the recombination centers of photogenerated electrons and holes.

Hollow anisotropic semiconductor nanoprisms with highly crystalline frameworks for high-efficiency photoelectrochemical water splitting

2019 ◽  
Vol 7 (14) ◽  
pp. 8061-8072 ◽  
Author(s):  
Erhuan Zhang ◽  
Jia Liu ◽  
Muwei Ji ◽  
Hongzhi Wang ◽  
Xiaodong Wan ◽  
...  
Keyword(s):  
Water Splitting ◽  
Special Interest ◽  
High Efficiency ◽  
Semiconductor Nanostructures ◽  
Photoelectrochemical Water Splitting ◽  
Anisotropic Semiconductor ◽  
Structure Morphology ◽  
Tunable Structure ◽  
Pec Water Splitting

Construction of hollow anisotropic semiconductor nanostructures that possess excellent crystallinity, flexibly tunable structure/morphology and aqueous dispersity is of special interest for photoelectrochemical (PEC) water splitting

Assembling γ-graphyne surrounding TiO2 nanotube arrays: An efficient p-n heterojunction for boosting photoelectrochemical water splitting

2021 ◽  
Author(s):  
Dong Qiu ◽  
Chengli He ◽  
Yuxuan Lu ◽  
Qiaodan Li ◽  
Yang Chen ◽  
...  
Keyword(s):  
Water Splitting ◽  
Charge Separation ◽  
Hydrogen Generation ◽  
Electron Injection ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Photoelectrochemical Water Splitting ◽  
Nanotube Arrays ◽  
Injection Efficiency ◽  
Electron Injection Efficiency

Photoelectrochemical water splitting is an excellent strategy for hydrogen generation, and it is pivotal to develop photoanodes with proficient sunlight harvesting, rapid charge separation, and enhanced electron injection efficiency. In...

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