Photodegradation of oxytetracycline using fluorescent light driven ZnO quantum dots synthesised via microwave method

Jasni, Normawati and Iqbal, Anwar and Abu Bakar, Noor Hana Hanif and Wan Ahmad Kamil, Wan Maryam and Danial, Wan Hazman and Ismail, Mohamad Wafiuddin and Rajappan, Kalaivizhi (2023) Photodegradation of oxytetracycline using fluorescent light driven ZnO quantum dots synthesised via microwave method. Journal of Physical Science, 34 (1). pp. 27-41. ISSN 1675-3402 E-ISSN 2180-4230

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Abstract

In this study, Li+ ions capped zinc oxide quantum dots (ZnO QDs) was synthesised using the microwave method. The X-ray diffraction (XRD), transmission electron microscopy (TEM), high-transmission electron microscopy (HR-TEM), scanning electron microscopy (SEM), UV–Visible diffuse reflectance spectroscopy (UV-DRS), and photoluminescence (PL) techniques were used to characterise the structural, morphological, optical properties of the ZnO QDs. The XRD analysis reveals that ZnO QDs have a hexagonal wurtzite structure with an average crystallite size of 9.9 nm. The morphology of ZnO QDs was observed to be quasi-spherically shaped with an average particle size of 10 nm. The PL analysis detected the presence of various defects. All these factors enhanced the photodegradation of oxytetracycline (OTC) under fluorescent light irradiation. Within 40 min, 88.3% of OTC was removed, which was higher compared to the bulk ZnO reported in the literature. This technology is aimed at small animal husbandries due to the photocatalyst synthesis method’s simplicity and the photocatalysis process’s requirements.

Item Type:	Article (Journal)
Uncontrolled Keywords:	ZnO QDs, quantum dots, photocatalysis, oxytetracycline, microwave method
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Chemistry
Depositing User:	Dr Mohamad Wafiuddin Ismail
Date Deposited:	01 Jun 2023 08:54
Last Modified:	24 Jan 2024 17:35
URI:	http://irep.iium.edu.my/id/eprint/104726

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