Govindan Suresh Kumar (2025) Microwave-Assisted Synthesis of Tunable CuO Nanostructures for Photocatalytic Detoxification of Eosin Yellow Dye. Microwave-Assisted Synthesis of Tunable CuO Nanostructures for Photocatalytic Detoxification of Eosin Yellow Dye. pp. 1-12.

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Abstract

In this study, we report the microwave-assisted synthesis of morphology-controlled cupric oxide (CuO) nanostructures using
ethylenediaminetetraacetic acid (EDTA) and polyethylene glycol (PEG) as morphology-controlling agents. The structural,
morphological, and optical properties of the prepared CuO nanostructures are thoroughly investigated using XRD, FTIR, FESEM,
EDX, PL, and UV–visspectroscopy. XRD analysisrevealed the development of monoclinic CuO with different crystallinity. FESEM
analysis showed that the CuO synthesized in the absence of an organic modifier exhibited a flake-like nanostructure, whereas the
use of PEG and EDTA as morphology controllers resulted in the formation of spherical and rod-like nanostructures, respectively.
The photocatalytic test was conducted on eosin yellow dye degradation using the synthesized CuO nanostructures under visible
light for 120 min. The shape-dependent photocatalytic degradation of eosin yellow dye by the synthesized CuO nanostructures
was observed with the respective degradation efficiencies of 81.70%, 95.50%, and 98.13% for flake-like, spherical, and rod-like
nanostructures. Hence, morphology-controlled synthesis plays a key role in optimizing the photocatalytic performance of CuO
nanostructures, making them more effective for environmental remediation

Item Type: Article
Uncontrolled Keywords: CuO nanostructures | microwave-assisted synthesis | morphology | photocatalysis | wastewater treatment
Divisions: PSG College of Arts and Science > Department of Physics
Depositing User: Dr. B Sivakumar
Date Deposited: 28 Mar 2026 06:26
Last Modified: 28 Mar 2026 06:26
URI: https://ir.psgcas.ac.in/id/eprint/2755

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