Study on photocatalytic and impedance spectroscopy investigations of composite CuO/ZnO nanoparticles

This paper reports the preparation of composite CuO/ZnO nanoparticles by facile precipitation route and their photocatalytic activity against organic dyes. The red shift caused in the UV–Vis absorption spectrum suggests the enhancement of visible light photocatalytic activity of the material. The co...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2019-07, Vol.30 (14), p.13708-13718
Main Authors: AlSalhi, Mohamad S., Sakthisabarimoorthi, A., Devanesan, Sandhanasamy, Martin Britto Dhas, S. A., Jose, M.
Format: Article
Language:English
Subjects:
Absorption spectra
Catalytic activity
Characterization and Evaluation of Materials
Chemistry and Materials Science
Dielectric properties
Doppler effect
Dyes
Light irradiation
Mapping
Materials Science
Methylene blue
Nanoparticles
Optical and Electronic Materials
Organic chemistry
Photocatalysis
Red shift
Rhodamine
Spectrum analysis
Thermal analysis
X ray photoelectron spectroscopy
Zinc oxide
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Summary:This paper reports the preparation of composite CuO/ZnO nanoparticles by facile precipitation route and their photocatalytic activity against organic dyes. The red shift caused in the UV–Vis absorption spectrum suggests the enhancement of visible light photocatalytic activity of the material. The collective vibrations of Cu–O and Zn–O in FTIR spectrum clearly illustrate the formation of composite CuO/ZnO nanoparticles. Powder XRD profile suggests the formation of highly crystalline material and the chemical states of the elements is investigated by XPS analysis. A slightly agglomerated cluster-like structure of the particles is visualized by SEM analysis and EDS mapping illustrates the homogeneous distribution of the sample, which is most favorable for the photocatalysis analysis. The photocatalytic activity of material is studied against degradation of Rhodamine B and Methylene blue dyes using simulated solar light irradiation. The dielectric analysis of the composite CuO/ZnO nanoparticles demonstrates the enhanced dielectric permittivity and low loss factor in comparison with pure CuO and ZnO nanoparticles.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-019-01752-9