Abstract
Doped ZnO with Zr has been obtained by sol-gel method and characterized by powder X-ray diffraction, energy dispersive X-ray spectrum, Scanning electron micrographs, and UV–visible diffuse reflectance and photoluminescence spectroscopy. Powder XRD shows that synthesized Zr doped ZnO has hexagonal wurtzite structure and high crystallinity, DRS reveals that wavelength are shifted from UV region to visible region when Zr doping. PL spectra clearly reveal that the recombinations of electron-hole pair in ZnO are suppressed by Zr doping. Zr-doping enhances the photocatalytic degradation of methylene blue dye than ZnO under visible light.
Highlights
In recent years, many researchers are discovered the new and modified semiconductor materials and application of these materials is cleaning the toxic effluents
The energy dispersive X-ray (EDX) spectrum was obtained using the Oxford instruments attached to scanning electron microscope (SEM)
The ≈ 2% Zr doped ZnO was prepared by sol-gel method
Summary
Many researchers are discovered the new and modified semiconductor materials and application of these materials is cleaning the toxic effluents. ZnO has been used as a photocatalyst, owing to its high activity, low cost and friendly environment. The problem of ZnO is the high recombination rate of electron-hole pair, resulting in low degradation efficiencies of the organic pollutants. To overcome these limitations, a number of strategies have been adopted to improve the charge separation efficiency and enhance the photocatalytic activity of the catalyst such as the Semiconductors doping or hybridizing. Utilized sol-gel method to study the influences of Zr-doping on ZnO photoelectric properties. Kim et al to study the photoelectric property of Zr-doped ZnO system by using pulse laser deposition method [9]. International Journal of Bioorganic Chemistry 2019; 4(1): 14-18 under visible light for the degradation of MB dye
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