Photodegradation of Dye Pollutants on Nanocrystalline Co Doped Li 0.5 Fe 2.5 O 4 under UV‐Visible Light Irradiation

2021 ◽  
Vol 400 (1) ◽  
pp. 2100201
Author(s):  
Arjun S. Chavan ◽  
Bhagvan V. Jadhav ◽  
Mohan R. Kadam ◽  
Akush V. Mali ◽  
C. B. Mane ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Dye Pollutants ◽  
Uv Visible ◽  
Co Doped

scholarly journals Synthesis of Ag and AgCl co-doped ZIF-8 hybrid photocatalysts with enhanced photocatalytic activity through a synergistic effect

RSC Advances ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 698-704 ◽  
Author(s):  
Yanqiu Jing ◽  
Qiang Lei ◽  
Chun Xia ◽  
Yu Guan ◽  
Yide Yang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Synergistic Effect ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Separation Efficiency ◽  
Light Irradiation ◽  
Electron Hole ◽  
Dye Pollutants ◽  
High Separation ◽  
Co Doped

Recently, Ag/AgCl composites with different structures have been widely studied and used as photocatalysts to degrade dye pollutants, due to their high separation efficiency of electron–hole pairs under visible light irradiation.

Photocatalytic Activity of CuO/ZnO Heterostructure Nanocrystals under UV-Visible Light Irradiation

2014 ◽  
Vol 787 ◽  
pp. 35-40 ◽  
Author(s):  
Xiao Yan Zhou ◽  
Peng Wei Zhou ◽  
Hao Guo ◽  
Bo Yang ◽  
Ru Fei Ren
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Cuo Nanoparticles ◽  
Light Irradiation ◽  
Molar Ratio ◽  
X Ray Diffraction ◽  
X Ray ◽  
Vis Spectroscopy ◽  
Uv Visible

The p-n junction photocatalysts, p-CuO (at. 0-25%)/n-ZnO nanocomposite were prepared through hydrothermal method without using any organic solvent or surfactant. The as-prepared samples were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-Ray spectroscopy, and UV-vis spectroscopy. The results demonstrated that the CuO/ZnO nanocomposite presented a two-dimensional morphology composed of sheet-like ZnO nanostructures adorned with CuO nanoparticles. The photocatalytic activity of CuO/ZnO with different Cu/Zn molar rations and pure ZnO synthesized by the identical synthetic route were evaluated by degrading methylene blue (MB) dye under UV-visible light irradiation. The CuO/ZnO with Cu/Zn molar ratio of 4% exhibits the highest photocatalytic activity compared that of the other photocatalysts under the identical conditions. It is mainly attributed to the increased charge separation rate in the nanocomposite and the extended photo-responding range.

scholarly journals Enhanced Photocatalytic Properties of PET Filaments Coated with Ag-N Co-Doped TiO2 Nanoparticles Sensitized with Disperse Blue Dyes

Nanomaterials ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 987 ◽  
Author(s):  
Hui Zhang ◽  
Qi Tang ◽  
Qingshan Li ◽  
Qingwen Song ◽  
Hailiang Wu ◽  
...  
Keyword(s):  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Visible Light Irradiation ◽  
Reaction Rate Constant ◽  
Light Irradiation ◽  
Photocatalytic Properties ◽  
Blue Dye ◽  
Dye Sensitization ◽  
Doped Tio2 ◽  
Co Doped

In this study, the effects of disperse blue dye-sensitization on the photocatalytic properties of the Ag-N co-doped TiO2 nanoparticles loaded on polyethylene terephthalate (PET) filaments are investigated under visible light irradiation. The microstructure and photocatalytic properties of the as-synthesized TiO2 nanocomposites, as well as the as-prepared PET filaments, are systematically characterized. The photocatalytic performance of the PET filaments coated with the Ag-N co-doped TiO2 nanoparticles sensitized with disperse blue dyes is evaluated via its capacity of photo-degrading methyl orange (MO) dyes under visible light irradiation. It is found that the holes are the predominant reactive radical species and the hydroxyl and superoxide radicals play a subordinate role in the photocatalytic reaction process. The reaction rate constant of the photocatalytic composite filaments is nearly 4.0 times higher than that of the PET filaments loaded solely with TiO2 nanoparticles. The resultant photocatalytic composite filaments are evident to be capable of repeatedly photo-degrading MO dyes without losing its photocatalytic activity significantly.

Novel Tm3+/Yb3+–co-doped Bi2MoO6: Synthesis, characterization, and enhanced photocatalytic activity under visible-light irradiation

2020 ◽  
Vol 35 (3) ◽  
pp. 312-320
Author(s):  
Zuowei Zhang ◽  
Hongshun Hao ◽  
Shanshan Jin ◽  
Yunxia Hou ◽  
Hongman Hou ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Image Position ◽  
Co Doped

Abstract

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