scholarly journals Hydrothermal fabrication of natural sun light active Dy2WO6 doped ZnO and its enhanced photo-electrocatalytic activity and self-cleaning properties

RSC Advances ◽  
2017 ◽  
Vol 7 (13) ◽  
pp. 7509-7518 ◽  
Author(s):  
Kuppulingam Thirumalai ◽  
Manohar Shanthi ◽  
Meenakshisundaram Swaminathan
Keyword(s):  
Photocatalytic Degradation ◽  
Azo Dyes ◽  
Electrocatalytic Activity ◽  
Electrocatalytic Oxidation ◽  
Hydrothermal Process ◽  
Oxidation Of Methanol ◽  
Template Free ◽  
Doped Zno ◽  
Self Cleaning ◽  
Sun Light

Dy2WO6 doped ZnO, fabricated by template free hydrothermal process, reveals enhanced efficiency in solar photocatalytic degradation of azo dyes, electrocatalytic oxidation of methanol and hydrophobicity.

Photocatalytic Activities of Cobalt-Doped ZnO Nanoparticles by Hydrothermal Method

2021 ◽  
Vol 32 ◽  
pp. 33-43
Author(s):  
S. Sathiya ◽  
J. Vijayapriya ◽  
K. Parasuraman ◽  
Durairaj Benny Anburaj ◽  
S. Joshua Gnanamuthu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Process ◽  
Charge Carriers ◽  
Electronic Interaction ◽  
X Ray Diffraction ◽  
X Ray ◽  
Vis Spectroscopy ◽  
Photocatalytic Activities ◽  
Doped Zno ◽  
Sun Light

Photocatalytically active cobalt-doped ZnO (Co: ZnO) hexagonal nanoparticles have been prepared by hydrothermal process. X-ray diffraction, SEM, FTIR and UV–vis spectroscopy confirmed that the dopant ions substitute for some of the lattice zinc ions, and furthermore, that Co2+ ion exists. The as-prepared Co: ZnO samples have an extended light absorption range compared with pure ZnO and showed highly efficient photocatalytic activity, only requiring 120 min to decompose ~90% of MB dye under sun light irradiation. The results indicated that a strong electronic interaction between the Co and ZnO was present, and that the incorporation of Co promoted the charge separation and enhanced the charge transfer ability and, at the same time, effectively inhibited the recombination of photogenerated charge carriers in ZnO, resulting in high visible light photocatalytic activity.

Improved electrocatalytic activity of Pt catalyst supported on core-shell CMs@NiO for methanol oxidation

2021 ◽  
Author(s):  
Yongping Luo ◽  
Wei Zhong ◽  
Ping Huang ◽  
Hui Ou ◽  
Haiyan Fu ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Electrocatalytic Oxidation ◽  
Pt Catalyst ◽  
Core Shell ◽  
Support Material ◽  
Carbon Microspheres ◽  
Oxidation Of Methanol ◽  
Glass Carbon

The enhancement for electrocatalytic oxidation of methanol was achieved by utilizing core-shell carbon microspheres@NiO (CMs@NiO) deposited on glass carbon (GC) as the support material of Pt catalyst. The resultant CMs@NiO/Pt...

scholarly journals Magnetic Field-Assisted Photocatalytic Degradation of Organic Pollutants over Bi1−xRxFeO3 (R = Ce, Tb; x = 0.00, 0.05, 0.10 and 0.15) Nanostructures

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4079
Author(s):  
Radhalayam Dhanalakshmi ◽  
Nambi Venkatesan Giridharan ◽  
Juliano C. Denardin
Keyword(s):  
Magnetic Field ◽  
Rare Earth ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Visible Light Irradiation ◽  
Organic Pollutant ◽  
Hydrothermal Process ◽  
Phenol Red ◽  
Magnetic Features

Magnetic-field-accelerated photocatalytic degradation of the phenol red (PR) as a model organic pollutant was studied using rare-earth elements modified BiFeO3 (Bi1−xRxFeO3 (R = Ce, Tb; x = 0.0, 0.05, 0.10 and 0.15); BFO: RE) nanostructures. The nanostructures were prepared via the hydrothermal process and their morphological, structural, functional, optical and magnetic features were investigated in detail. The effect of magnetic fields (MFs) on photocatalysis were examined by applying the different MFs under visible light irradiation. The enhanced photodegradation efficiencies were achieved by increasing the MF up to 0.5T and reduced at 0.7T for the compositions x = 0.10 in both Ce and Tb substituted BFO. Further, mineralization efficiencies of PR, reproducibility of MF-assisted photocatalysis, stability and recyclability of BFO: RE nanostructures were also tested.

Photocatalytic degradation of organic dyes by Er3+: YAlO3/Co- and Fe-doped ZnO coated composites under solar irradiation

2016 ◽  
Vol 90 (13) ◽  
pp. 2654-2664 ◽  
Author(s):  
Yang Chen ◽  
Chunxiao Lu ◽  
Liang Tang ◽  
Yahui Song ◽  
Shengnan Wei ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Organic Dyes ◽  
Solar Irradiation ◽  
Doped Zno

Synthesis of N-doped ZnO/ZnCo2O4 composites for stable photocatalytic degradation of organic dyes

2021 ◽  
Vol 217 ◽  
pp. 411-421
Author(s):  
Lukai Liu ◽  
Guoqing Zhao ◽  
Caifeng Li ◽  
Shu Zhou ◽  
Yinke Wang ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Organic Dyes ◽  
Doped Zno
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