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


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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.

Sobre autores

Maryam Ditta

Nano-Chemistry Lab.

Email: akhyar@gcu.edu.pk
Paquistão, Lahore, 54000

Muhammad Farrukh

Nano-Chemistry Lab.

Autor responsável pela correspondência
Email: akhyar@gcu.edu.pk
Paquistão, Lahore, 54000

Shaista Ali

Nano-Chemistry Lab.

Email: akhyar@gcu.edu.pk
Paquistão, Lahore, 54000

Naeem Younas

Nano-Chemistry Lab.

Email: akhyar@gcu.edu.pk
Paquistão, Lahore, 54000

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