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Experimental Study of the Photocatalytic Behaviour of Zinc Oxide Nanostructure for Cationic Dye (Malachite Green)

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Title Experimental Study of the Photocatalytic Behaviour of Zinc Oxide Nanostructure for Cationic Dye (Malachite Green)
 
Creator Anju
Jha, Ranjana
Singh, Sukhvir
 
Subject ZnO
Cationic dye
Degradation
Nanoparticles
 
Description 724-728
In the present study, ZnO nanostructures formed by co-precipitation have been investigated for their photocatalytic
behaviour against the cationic dye (Malachite Green). X-ray diffraction (XRD) technique has been used to identify the
structure, crystallite size, and phase of the as-synthesized material. Surface morphology and elemental compositional
analysis of the ZnO have been carried out using a scanning electron microscope (SEM) attached with an energy-dispersive
spectrometer (EDS). The SEM study has revealed the formation of round-shaped pebble-like particles having sizes between
50 to 150 nm and found to be uniformly distributed. XRD analysis has shown well-resolved peaks of ZnO, indicating a
polycrystalline nature with a hexagonal structure. The crystallite size has been calculated and found to be about 18 nm.
Absorbance spectra have been recorded using a UV-Vis spectrometer and the optical band gap energy has been found to be
3.29 eV. Band-gap excitonic emission displays emission peaks in the photoluminescence spectrum at 390 nm. The results
have shown the degradation of Malachite Green dye using ZnO nanoparticles in 3 hours, with 95% efficiency. The
decomposition of the dye with ZnO nanoparticles can be utilized in industrial wastewater treatment for the benefit of
mankind and the aquatic ecosystem, including their habitats.
 
Date 2023-12-22T11:00:12Z
2023-12-22T11:00:12Z
2023-12
 
Type Article
 
Identifier 0975-1017 (Online); 0971-4588 (Print)
http://nopr.niscpr.res.in/handle/123456789/63068
https://doi.org/10.56042/ijems.v30i5.6877
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJEMS Vol.30(5) [October]