Saudi Journal of Engineering and Technology (SJEAT)
Volume-7 | Issue-03 | 132-136
Original Research Article
Photocatalytic Activity of Aluminium Oxide Nanoparticles on Degradation of Ciprofloxacin
Ezeibe Anderson U, Nleonu Emmanuel C, Onyemenonu Christopher C, Arrousse Nadia, Nzebunachi Christain C
Published : March 12, 2022
Abstract
In this research, Al2O3 nanoparticles were successfully synthesized using facile chemical precipitation method as a photocatalyst. The synthesized photo catalyst was characterized using scanning electron microscopy. The photocatalytic activity of the synthesized Al2O3was studied on the degradation of ciprofloxacin as a model pollutant in UV light irradiation by conductometry method. The experiments were carried out by varying contact time from 1- 5 hours and catalyst load from 0.5 – 2.5g. The optimum catalyst dose and contact time were found to be 1g and 1 hour respectively for the drug degradation. The result exhibited photocatalysis activity. The photocatalytic activity can be attributed to higher absorption of Ultra-Violet light by the synthesized Al2O3 that led to formation of a large number of reactive species. The Kinetics study of the photodegradation process was explained in terms of the modified Langmuir Hinshelwood model. The values of the kinetic rate constant (k) of the photodegradation were 8.0x10-3min-1 and 5.0x10-2min-1in the absence and presence of the synthesized photocatalyst respectively.