Improved visible light photocatalytic activity of WO3 through CuWO4 for phenol degradation

2016 ◽  
Vol 389 ◽  
pp. 491-495 ◽  
Author(s):  
Haihang Chen ◽  
Xianqiang Xiong ◽  
Linlin Hao ◽  
Xiao Zhang ◽  
Yiming Xu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Phenol Degradation ◽  
Visible Light Photocatalytic Activity ◽  
Visible Light Photocatalytic

Preparation of CdS and Bi2S3 quantum dots co-decorated perovskite-type KNbO3 ternary heterostructure with improved visible light photocatalytic activity and stability for phenol degradation

2018 ◽  
Vol 47 (42) ◽  
pp. 15232-15245 ◽  
Author(s):  
Beata Bajorowicz ◽  
Ewa Kowalska ◽  
Joanna Nadolna ◽  
Zhishun Wei ◽  
Maya Endo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Quantum Dot ◽  
Visible Light ◽  
Phenol Degradation ◽  
Hydrothermal Route ◽  
Visible Light Photocatalytic Activity ◽  
Perovskite Type ◽  
Visible Light Photocatalytic

A combination of the hydrothermal route with a linker assisted attachment method was used to obtain efficient CdS/Bi2S3 quantum dot-decorated perovskite type KNbO3.

scholarly journals Combinatorial doping of TiO2 with platinum (Pt), chromium (Cr), vanadium (V), and nickel (Ni) to achieve enhanced photocatalytic activity with visible light irradiation

2010 ◽  
Vol 25 (1) ◽  
pp. 149-158 ◽  
Author(s):  
Jina Choi ◽  
Hyunwoong Park ◽  
Michael R. Hoffmann
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Diffuse Reflectance Spectroscopy ◽  
Sol Gel ◽  
Phenol Degradation ◽  
Area Measurement ◽  
Bet Surface Area ◽  
X Ray Diffraction ◽  
Visible Light Photocatalytic Activity ◽  
Visible Light Photocatalytic

Titanium dioxide (TiO2) was doped with the combination of several metal ions including platinum (Pt), chromium (Cr), vanadium (V), and nickel (Ni). The doped TiO2 materials were synthesized by standard sol-gel methods with doping levels of 0.1 to 0.5 at.%. The resulting materials were characterized by x-ray diffraction (XRD), BET surface-area measurement, scanning electron microscopy (SEM), and UV-vis diffuse reflectance spectroscopy (DRS). The visible light photocatalytic activity of the codoped samples was quantified by measuring the rate of the oxidation of iodide, the rate of degradation of methylene blue (MB), and the rate of oxidation of phenol in aqueous solutions at λ > 400 nm. 0.3 at.% Pt-Cr-TiO2 and 0.3 at.% Cr-V-TiO2 showed the highest visible light photocatalytic activity with respect to MB degradation and iodide oxidation, respectively. However, none of the codoped TiO2 samples were found to have enhanced photocatalytic activity for phenol degradation when compared to their single-doped TiO2 counterparts.

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