Zr doped mesoporous LaTaON2 for efficient photocatalytic water splitting

2019 ◽  
Vol 7 (10) ◽  
pp. 5702-5711 ◽  
Author(s):  
Yawei Wang ◽  
Shu Jin ◽  
Guoxiang Pan ◽  
Zuxin Li ◽  
Long Chen ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Visible Light Absorption ◽  
Photocatalytic Water Splitting ◽  
Photocatalytic Activities

Zr doping maintains the visible light absorption of LaTaON2 and contributes to enhanced photocatalytic activities for water splitting.

Enabling efficient visible light photocatalytic water splitting over SrTaO2N by incorporating Sr in its B site

2018 ◽  
Vol 6 (42) ◽  
pp. 20760-20768 ◽  
Author(s):  
Xiaoqin Sun ◽  
Fangfang Wu ◽  
Gang Liu ◽  
Xiaoxiang Xu
Keyword(s):  
Photocatalytic Activity ◽  
Solar Energy ◽  
Visible Light ◽  
Energy Conversion ◽  
Water Splitting ◽  
Light Absorption ◽  
Solar Energy Conversion ◽  
Visible Light Absorption ◽  
Photocatalytic Water Splitting ◽  
Visible Light Photocatalytic

The perovskite oxynitride SrTaO2N is a promising compound for solar energy conversion because it has strong visible light absorption at wavelengths as long as 650 nm. However, the photocatalytic activity of SrTaO2N is generally very poor. We managed to improve its activity by incorporating Sr in its B site.

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...

Designing transition metal and nitrogen-codoped SrTiO3(001) perovskite surfaces as efficient photocatalysts for water splitting

2017 ◽  
Vol 1 (9) ◽  
pp. 1968-1980 ◽  
Author(s):  
Yang Yang ◽  
Weijie Zheng ◽  
Daojian Cheng ◽  
Dapeng Cao
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Visible Light Absorption ◽  
Charge Mobility ◽  
High Charge

Development of an efficient photocatalyst with both strong visible light absorption and high charge mobility is highly desirable but still remains a great challenge.

SrNbO2N as a Water-Splitting Photoanode with a Wide Visible-Light Absorption Band

2011 ◽  
Vol 133 (32) ◽  
pp. 12334-12337 ◽  
Author(s):  
Kazuhiko Maeda ◽  
Masanobu Higashi ◽  
Bhavin Siritanaratkul ◽  
Ryu Abe ◽  
Kazunari Domen
Keyword(s):  
Absorption Band ◽  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Visible Light Absorption

scholarly journals Theoretical and photo-electrochemical studies of surface plasmon induced visible light absorption of Ag loaded TiO2 nanotubes for water splitting

2016 ◽  
Vol 109 (15) ◽  
pp. 153903 ◽  
Author(s):  
P. A. Gross ◽  
N. Javahiraly ◽  
N. Geraldini Sabat ◽  
T. Cottineau ◽  
E. R. Savinova ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Surface Plasmon ◽  
Light Absorption ◽  
Tio2 Nanotubes ◽  
Electrochemical Studies ◽  
Visible Light Absorption

CdS-Based Photocatalysts for Solar Water Splitting

2021 ◽  
Vol 02 ◽  
Author(s):  
Yimeng Cao ◽  
Chuhong Zhu ◽  
Taotao Wang ◽  
Daochuan Jiang ◽  
Sheng Ye
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Narrow Band ◽  
Heteroatom Doping ◽  
Visible Light Absorption ◽  
Solar Water Splitting ◽  
Band Position

: Photocatalytic water splitting for hydrogen production is a promising pathway for solar energy convention into chemicals. Among various semiconductor-based photocatalysts, cadmium sulfide (CdS) attracted extensive attentions due to the narrow band gap nature (2.4 eV) for efficient visible light absorption, suitable band position for water splitting, and outstanding photocatalytic activity. In this review, we summarize the recent advances for the synthesis of CdS, and modification strategies including heteroatom doping, loading cocatalysts, and hetero/homo-junction fabrication are also presented. Moreover, a brief perspective and challenges on CdS-based photocatalyst are also discussed.

Effect of Hydrogen Peroxide on the Photocatalytic Decomposition of 4-Nitrophenol over TiO2/Cr-Ti- MCM-41 Catalysts in Visible Light

2005 ◽  
Vol 486-487 ◽  
pp. 13-16
Author(s):  
Gun Dae Lee ◽  
Y.J. Do ◽  
Seong Soo Park ◽  
Seong Soo Hong
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Light Absorption ◽  
Photocatalytic Decomposition ◽  
Electron Hole ◽  
Visible Light Absorption ◽  
Photocatalytic Activities ◽  
Hole Recombination ◽  
Mcm 41 ◽  
Uv Range

Cr, Ti-substituted TiO2-loaded MCM-41 (TiO2/Cr-Ti-MCM-41) catalysts were prepared, and their photocatalytic activities for decomposition of 4-nitrophenol (4-NP) in visible light were studied. The effect of H2O2 on the photocatalytic decomposition of 4-NP was investigated. Tisubstituted MCM-41 exhibited an absorption in UV range, and the incorporation of both Ti and Cr in the MCM-41 framework created visible light absorption. The visible light absorption capability of TiO2/Cr-Ti-MCM-41 increased with increasing TiO2 loading. The photocatalytic activity of Cr- Ti-MCM-41 for degradation of 4-NP in visible light increased with increasing TiO2 loading up to 33 wt%. The addition of H2O2 enhanced the photocatalytic activity of 33 wt% TiO2/Cr-Ti-MCM-41 for decomposition of 4-NP in visible light. H2O2 was found to promote the adsorption of 4-NP on the Cr-Ti-MCM-41 surface, leading to increased reaction rate. In addition, H2O2 may act as an electron acceptor during photocatalytic reaction, thereby lowering the electron-hole recombination and increasing the efficiency of hole utilization.

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