Facile Synthesis of CdO–ZnO Nanocomposites for Photocatalytic Application in Visible Light

This research work reveals the CdO–ZnO nanocomposites as photocatalysts for the degradation of MB (Methylene blue), RhB (Rhodamine B), and MO (Methyl orange) dyes. The composites have been prepared through a hydrothermal route with different cadmium oxide contents (0–30%). The nanocomposites were ch...

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Bibliographic Details
Published in:Arabian journal for science and engineering (2011) 2024, Vol.49 (1), p.273-284
Main Authors: Sirohi, Kapil, Kumar, Suresh, Singh, Virender, Chauhan, Nikhil, Vohra, Anil
Format: Article
Language:English
Subjects:
Cadmium
Crystallites
Current carriers
Dyes
Engineering
Field emission microscopy
Field emission spectroscopy
Fourier transforms
Functional groups
Humanities and Social Sciences
Infrared spectroscopy
Methylene blue
Microscopy
multidisciplinary
Nanocomposites
Optical properties
Photocatalysis
Photoluminescence
Research Article-Chemistry
Rhodamine
Science
Spectrum analysis
Transmission electron microscopy
Wurtzite
X-ray diffraction
Zinc oxide
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Summary:This research work reveals the CdO–ZnO nanocomposites as photocatalysts for the degradation of MB (Methylene blue), RhB (Rhodamine B), and MO (Methyl orange) dyes. The composites have been prepared through a hydrothermal route with different cadmium oxide contents (0–30%). The nanocomposites were characterized and inspected via X-ray diffraction (XRD), UV–visible spectroscopy, photoluminescence spectroscopy (PL), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). The XRD illustrates the occurrence of highly crystalline hexagonal wurtzite and cubic phase for ZnO and CdO, respectively, and also demonstrates the crystallite size in the range of 15.14–22.01 nm. FESEM and TEM analysis was employed to confirm the morphology of nanocomposites. FTIR is accomplished to ensure the subsistence of diverse functional groups in the prepared material. The optical properties of a sample are characterized through UV–vis and PL spectroscopy and show the incidence of redshirt and decrease charge carriers recombination rate with increasing the weight percentage of CdO in a composite. The result found enhanced dye degrading efficiency with cadmium oxide contents in composites as compared to bare ZnO nanostructure.
ISSN:2193-567X
1319-8025
2191-4281
DOI:10.1007/s13369-023-08072-5