ABSTRACT: Our study presents a facile and eco-friendly sol-gel technique for synthesizing pure copper oxide (CuO), cerium oxide (CeO2), and CuO@CeO2 core-shell nanoparticles (CS-NPs), utilizing aloe vera gel (AVG) as a natural capping agent. The photocatalysts' structural, morphological, and optical properties were thoroughly characterized using a suite of analytical techniques, including X-ray photoelectron spectroscopy (XPS), powder-X-ray diffraction (p-XRD), FESEM-EDX, FT-IR, and Raman spectral studies. P-XRD analysis confirmed the successful formation of the core-shell nanostructures.
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