Enhanced Photocatalytic Degradation of Maxillon Blue Dye (GRL) by Using ZnO NPs in Aqueous Solutions

Article type: Research Article

Authors: Said, Esraa Ahmed^{; *} | Hadi, Mohammed | Abdullah, Hasan Mohammed | Rasen, Fadhil A. | Ramadan, Montather F.

Affiliations: Department of Dentistry, Al-Noor University College, Nineveh, Iraq | College of Medical Technology/Medical Lab Techniques, Al-Farahidi University, Baghdad, Iraq | Department of Optical Techniques, Al-Zahrawi University College, Karbala, Iraq | Department of Medical Engineering, Al-Esraa University College, Baghdad, Iraq | College of Dentistry, Al-Ayen University, Thi-Qar, Iraq

Correspondence: [*] Corresponding Author. esraa.ahmed@alnoor.edu.iq

Abstract: The ZnO nanoparticles (ZnO NPs) catalyst was prepared using the hydrothermal method. Properties of nanoparticles were investigated by utilising some techniques (FE-SEM, TEM, and EDX). The photocatalytic degradation of Maxillon Blue (GRL) under UV irradiation has been studied. The use of zinc oxide as a catalyst in the photo catalysis process under different experimental conditions. The influence of several factors includes the effect of mass catalyst and the concentration of Maxillon blue (GRL) dye. Through the results, the photocatalytic efficiency increases by increasing the weight of the ZnO NPs catalyst starting from 0.1 to 0.4 g per 200 mL, also when the amount of ZnO NPs increased, the rate of degradation goes up first and then keeps unalterable on a certain scale, but when the quantity reaches to 0.4 g per 200 mL, the rate of degradation shows slight change. The highest photodegradation efficiency reaches 87% indicating a good surface activity.

Keywords: Photocatalytic, ZnO nanoparticles, Maxillon Blue (GRL), advanced oxidation processes

DOI: 10.3233/AJW230048

Journal: Asian Journal of Water, Environment and Pollution, vol. 20, no. 4, pp. 27-32, 2023