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Hydrothermal ZnO Photocatalysis for Efficient Removal of Tetracycline from Wastewater

Lookup NU author(s): Professor Chun Yang Yin

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).

Abstract

© 2025, Gadjah Mada University. All rights reserved.Tetracycline (TC), a widely used antibiotic, is increasingly detected in wastewater, posing a significant environmental and health risk. Zinc oxide nanoparticles are emerging as a promising photocatalyst for TC photodegradation due to their low cost and superior light absorption capabilities at room temperature compared to the widely used titanium dioxide (TiO2). This study explores the efficacy of hydrothermally synthesized ZnO nanoparticles in degrading TC. The photocatalytic degradation efficiency of ZnO was examined under controlled batch conditions by varying parameters like ZnO dosage (0.5-2.5 g/L), TC concentration (5-25 ppm), and light source (solar, visible, and UV). The result showed that the highest TC removal efficiency (70.17%) was achieved under UV light with 1 g/L ZnO for a 5 ppm TC solution. The synthesized ZnO nanoparticles showed excellent reusability, highlighting their potential as a cost-effective and sustainable approach for TC degradation in wastewater treatment applications.

Publication metadata

Author(s): Wan Ishak WN, Tan HL, Abu Bakar NF, Lim YP, Yong NL, Yin CY

Publication type: Article

Publication status: Published

Journal: ASEAN Journal of Chemical Engineering

Year: 2025

Volume: 25

Issue: 1

Pages: 184-197

Online publication date: 29/04/2024

Acceptance date: 10/04/2025

Date deposited: 28/05/2025

ISSN (print): 1655-4418

ISSN (electronic): 2655-5409

Publisher: Gadjah Mada University

URL: https://doi.org/10.22146/ajche.16598

DOI: 10.22146/ajche.16598

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