Christy, A. Jegatha and Sagadevan, Suresh and Abdul Wahab, Yasmin and Nehru, L.C. and Hussin, Hanim and Alias, Nurul Ezaila and Maulat Osman, Rozana Aina (2021) Evaluation of physicochemical characteristics and antimicrobial activities of copper oxide nanoparticles formed by the solution combustion method. In: 13th IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2021, 2 - 4 August 2021, Virtual, Kuala Lumpur.
Full text not available from this repository.Abstract
In this paper, copper oxide (CuO) nanoparticles (NPs) was prepared by solution combustion technique. We used copper nitrate as an oxidizer and malic acid as a fuel to make three different CuO NPs by using different fuel ratios: low (M1), stoichiometric (M2), and high (M3). The XRD patterns show that the CuO NPs have the monoclinic structure with an average grain size of 17, 20, and 18 nm corresponding to M1, M2, and M3 respectively. The SEM images revealed that the CuO NPs prepared display bush as morphology consisting of a wheat-like structure for M1, rod-like structure for M2, and sheet-like structure for M3 sample. The FTIR spectrum shows that CuO NPs is successfully formed in all of the samples. A bandgap of around 3.26 eV can be seen in the UV-Vis spectrum. Also, the three samples are possessing antibacterial activity and are influenced by the crystalline size, shape, purity, and uniformity of the crystals. Among the three samples with a difference of morphology, the most influencing factor of antibacterial activity being the shape that of other larger-sized particles. © 2021 IEEE.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Funders: | SERO, University Grants Committee, Universiti Malaya [Grant No: ST030-2019] |
| Uncontrolled Keywords: | Antimicrobial activity; CuO nanoparticles; Malic acid fuel; Solution combustion method |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 30 Oct 2023 08:25 |
| Last Modified: | 30 Oct 2023 08:25 |
| URI: | http://eprints.um.edu.my/id/eprint/35647 |
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