X-ray peak profiling, optical parameters and catalytic properties of pure and CdS doped ZnO–NiO nanocomposites

X-ray peak profiling, optical parameters and catalytic properties of pure and CdS doped ZnO–NiO... In the current study, XRD peak profile analysis, optical and catalytic properties of pure ZnO–NiO and CdS doped ZnO-NiO nanocomposites were investigated. Average crystallite size, strain, dislocation density and bond length were determined with X-ray peak profile analysis. Optical properties such as band gap, extinction coefficient, refractive index, optical conductivity, and dielectric constants were studied by solid phase spectroscopy (SPS). The blue shift was observed in ZnO–NiO as compare to bulk ZnO due to the quantum confinement while red shift was found in CdS/ZnO–NiO nanocomposites as compare to ZnO–NiO nanocomposites is due to bulk defects inducing delocalization and pressure induced effect. The optical conductivity of ZnO–NiO nanocomposites was observed increased with doping of CdS on ZnO–NiO from 4.57 × 1018 to 6.71 × 1018 S–1, respectively. It was observed that catalytic efficiency depends on the particle size and band gap of the nanocomposites. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

X-ray peak profiling, optical parameters and catalytic properties of pure and CdS doped ZnO–NiO nanocomposites

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Publisher
Springer Journals
Copyright
Copyright © 2017 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427217010220
Publisher site
See Article on Publisher Site

Abstract

In the current study, XRD peak profile analysis, optical and catalytic properties of pure ZnO–NiO and CdS doped ZnO-NiO nanocomposites were investigated. Average crystallite size, strain, dislocation density and bond length were determined with X-ray peak profile analysis. Optical properties such as band gap, extinction coefficient, refractive index, optical conductivity, and dielectric constants were studied by solid phase spectroscopy (SPS). The blue shift was observed in ZnO–NiO as compare to bulk ZnO due to the quantum confinement while red shift was found in CdS/ZnO–NiO nanocomposites as compare to ZnO–NiO nanocomposites is due to bulk defects inducing delocalization and pressure induced effect. The optical conductivity of ZnO–NiO nanocomposites was observed increased with doping of CdS on ZnO–NiO from 4.57 × 1018 to 6.71 × 1018 S–1, respectively. It was observed that catalytic efficiency depends on the particle size and band gap of the nanocomposites.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Apr 25, 2017

References

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