scholarly journals Visible light active photocatalytic C-doped titanium dioxide films deposited via reactive pulsed DC magnetron co-sputtering: Properties and photocatalytic activity

Vacuum ◽  
2018 ◽  
Vol 149 ◽  
pp. 214-224 ◽  
Author(s):  
Marina Ratova ◽  
Rachan Klaysri ◽  
Piyasan Praserthdam ◽  
Peter J. Kelly
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Titanium Dioxide Films ◽  
Pulsed Dc ◽  
Visible Light Active ◽  
Doped Titanium Dioxide

Preparation of WOx-TiO2 and the Photocatalytic Activity under Visible Irradiation

2007 ◽  
Vol 336-338 ◽  
pp. 1979-1982 ◽  
Author(s):  
Hai Yan Song ◽  
Hong Fu Jiang ◽  
Xing Qin Liu ◽  
Yin Zhu Jiang ◽  
Guang Yao Meng
Keyword(s):  
Aqueous Solution ◽  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Tungsten Oxide ◽  
Tungsten Oxides ◽  
Tio2 Particles ◽  
Visible Light Range ◽  
Visible Irradiation ◽  
Doped Titanium Dioxide

Nanocrystalline tungsten oxide doped titanium dioxide (WOx-TiO2) powders were prepared by TiCl4 hydrolysis and characterized by XRD, XPS, UV–Vis absorption spectra and TEM. Results showed that WOx not only hindered the growth of TiO2 particles but also greatly increased the transformation temperature (>800 oC) from anatase to rutile during sintering; the dominant fraction of tungsten oxides was non-stoichiometric tungsten oxide (WxOy) with Wn+ (4<n<6), which could easily substitute Ti4+ in the lattice of TiO2. The light absorption band of TiO2 changed from the near UV to the visible light range (2.68 eV in 1.0 %WOx-TiO2) because of the tungsten impurity energy level induced by WxTi1-xO2. The photocatalysis experiments demonstrated that the MB in aqueous solution was successfully degraded within 1h using WOx-TiO2 with an optimal WOx dosage of 1% under visible light irradiation.

scholarly journals MODIFICATION OF TITANIUM DIOXIDE NANOMATERIALS BY SULFUR FOR PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE EVEN UNDER VISIBLE LIGHT

2018 ◽  
Vol 54 (2A) ◽  
pp. 164
Author(s):  
Nguyen Tan Lam
Keyword(s):  
Methylene Blue ◽  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Sodium Sulfate ◽  
High Photocatalytic Activity ◽  
Doped Titanium Dioxide ◽  
Modification Of Titanium ◽  
Very High

This paper presents a study on preparation of sulfur doped titanium dioxide using potassium fluorotitanate and sodium sulfate as precursors. The obtained results indicated that the doped TiO2 exhibited very high photocatalytic activity for degradation of methylene blue even under visible light. The increasing in the added sulfur amounts led to significantly increase in the degradation of methylene blue. When the S/TiO2 mole ratios increased from 10 to 25%, the degradation of methylene blue under compact light increased from 30.87% to 67.06%, respectively.

scholarly journals Porous nickel doped titanium dioxide nanoparticles with improved visible light photocatalytic activity

2020 ◽  
Vol 2 (3) ◽  
pp. 1352-1357 ◽  
Author(s):  
Bingbing Guan ◽  
Jie Yu ◽  
Siyao Guo ◽  
Shen Yu ◽  
Song Han
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Hydrothermal Synthesis ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Titanium Dioxide Nanoparticles ◽  
Porous Nickel ◽  
Ni Doping ◽  
Doped Titanium Dioxide ◽  
Visible Light Photocatalytic

A green hydrothermal synthesis route to prepare a porous Ni doped TiO2 nanostructured photocatalyst has been developed in this research. Ni doping can increase the visible light photocatalytic performance of TiO2 with cycle capability of 5 times.

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