Oxygen vacancy regulation on tungsten oxides with specific exposed facets for enhanced visible-light-driven photocatalytic oxidation

Nanoscale ◽  
2018 ◽  
Vol 10 (6) ◽  
pp. 2908-2915 ◽  
Author(s):  
Jie Meng ◽  
Qingyun Lin ◽  
Tao Chen ◽  
Xiao Wei ◽  
Jixue Li ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Visible Light ◽  
Photocatalytic Oxidation ◽  
Tungsten Oxides ◽  
Visible Light Driven ◽  
Cooling Methods ◽  
Exposed Facets

The density of oxygen vacancy on WO3 with specific exposed facets can be regulated through different cooling methods.

Photocatalytic oxidation of gas-phase Hg0 by carbon spheres supported visible-light-driven CuO–TiO2

2017 ◽  
Vol 46 ◽  
pp. 416-425 ◽  
Author(s):  
Jiang Wu ◽  
Chaoen Li ◽  
Xiantuo Chen ◽  
Jing Zhang ◽  
Lili Zhao ◽  
...  
Keyword(s):  
Visible Light ◽  
Gas Phase ◽  
Photocatalytic Oxidation ◽  
Carbon Spheres ◽  
Visible Light Driven

Conduction-Band Tailing of Ce-Doped TiO2 Visible-Light-Driven Photocatalyst: The Essential Role of Oxygen Vacancy

2011 ◽  
Vol 80 (11) ◽  
pp. 114706 ◽  
Author(s):  
Shi Wei Chen ◽  
Jenn Min Lee ◽  
Sunny Chiang ◽  
Shu Chih Haw ◽  
Yu Chia Liang ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Visible Light ◽  
Conduction Band ◽  
Essential Role ◽  
Doped Tio2 ◽  
Visible Light Driven ◽  
Band Tailing

Z-scheme BCN-TiO2 nanocomposites with oxygen vacancy for high efficiency visible light driven hydrogen production

2017 ◽  
Vol 42 (47) ◽  
pp. 28434-28444 ◽  
Author(s):  
Xiaolei Xing ◽  
Min Zhang ◽  
Lili Hou ◽  
Limin Xiao ◽  
Qiuye Li ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Oxygen Vacancy ◽  
Visible Light ◽  
High Efficiency ◽  
Visible Light Driven

scholarly journals Photocatalytic Oxidation of Gaseous Isopropanol Using Visible-Light Active Silver Vanadates/SBA-15 Composite

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Ting-Chung Pan ◽  
Hung-Chang Chen ◽  
Guan-Ting Pan ◽  
Chao-Ming Huang
Keyword(s):  
Visible Light ◽  
Adsorption Capacity ◽  
Lewis Acids ◽  
Photocatalytic Oxidation ◽  
Hydrothermal Condition ◽  
Incipient Wetness Impregnation ◽  
Visible Light Active ◽  
Visible Light Driven ◽  
Enhanced Adsorption ◽  
Diffuse Reflectance Infrared

An environmentally friendly visible-light-driven photocatalyst, silver vanadates/SBA-15, was prepared through an incipient wetness impregnation procedure with silver vanadates (SVO) synthesized under a hydrothermal condition without a high-temperature calcination. The addition of mesoporous SBA-15 improves the formation of nanocrystalline silver vanadates. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) confirms the presence of Brønsted and Lewis acids on the SVO/SBA-15 composites. The results of photoluminescence spectra indicated that the electron-hole recombination rate have been effectively inhibited when SVO was loaded with mesoporous SBA-15. All the composites loaded with various amount of SVO inherit the higher adsorption capacity and larger mineralization yield than those of P-25 (commercial TiO2) and pure SVO. The sample loaded with 51% of SVO (51SVO/SBA-15) with mixed phases of Ag4V2O7and α-Ag3VO4exhibits the best photocatalytic activity. A favorable crystalline phase combined with high intensities of Brønsted and Lewis acids is considered the main cause of the enhanced adsorption capacity and outstanding photoactivity of the SVO/SBA-15 composites.

Visible-light-driven BiOBr nanosheets for highly facet-dependent photocatalytic inactivation of Escherichia coli

2015 ◽  
Vol 3 (29) ◽  
pp. 15148-15155 ◽  
Author(s):  
Dan Wu ◽  
Bo Wang ◽  
Wei Wang ◽  
Taicheng An ◽  
Guiying Li ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Visible Light ◽  
Photocatalytic Inactivation ◽  
Visible Light Driven ◽  
K 12 ◽  
Exposed Facets

The efficiency of photocatalytic inactivation towards Escherichia coli K-12 is highly dependent on the dominantly exposed facets of BiOBr.

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