Khyrun, S. M. Fathima and Christy, A. Jegatha and Mayandi, Jeyanthinath and Sagadevan, Suresh (2023) Photo-triggered antibacterial and catalytic activities of solution combustion synthesized CeO2/NiO binary nanocomposite. Inorganic Chemistry Communications, 153. ISSN 1387-7003, DOI https://doi.org/10.1016/j.inoche.2023.110860.
Full text not available from this repository.Abstract
CeO2-based nanocomposites are the promising photocatalytic materials for various applications. In this study, CeO2/NiO nanocomposite was synthesized from pristine CeO2 and NiO nanoparticles by a solution combustion method using urea as fuel. The structural, optical, and morphological details of the nanomaterials are analyzed using various characterization techniques. The X-ray diffraction (XRD) pattern of CeO2 and NiO corresponds to a single-phase cubic structure with Fm3 ?m space group. The XRD peaks and SAED ring patterns of CeO2, NiO, and the CeO2/NiO nanocomposite matched the standard diffraction patterns accurately. The metal-oxygen bonds are identified using IR and Raman analyses. The enhanced surface resonance peak at 367 nm confirms the formation of the CeO2/NiO nanocomposite. The band gap of the CeO2/NiO nanocomposite narrowed to 1.85 eV contributed to enhance photoabsorption. The various peaks in the photoluminescence spectrum indicated the emission behavior of the nanomaterials. FESEM and HRTEM micrographs validated the perfect integration of pristine nanoparticles into the nanocomposite material. Antibacterial assays are performed against Gram-positive and Gram-negative bacteria, which showed good antibacterial activity. The photocatalytic activity of the CeO2/NiO nanocomposite for Methylene Blue (MB) dye degradation was investigated, and the data fit well with the pseudo-first-order reaction. Combustion-synthesized CeO2/NiO nanocomposites offer an efficient and straightforward approach for antibacterial and dye-degradation applications.
| Item Type: | Article |
|---|---|
| Funders: | JAC Funded Research Project (JACFRP), Jayaraj Annapackiam College for Women, Periyakulam, Tamil Nadu, India |
| Uncontrolled Keywords: | CeO2; NiO nanocomposite; Solution combustion synthesis; Dye degradation; Photocatalytic activity |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 01 Oct 2025 03:57 |
| Last Modified: | 01 Oct 2025 03:57 |
| URI: | http://eprints.um.edu.my/id/eprint/50281 |
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