عنوان المقالة: Photocatalytic degradation of malachite green dye under UV light irradiation using calcium-doped ceria nanoparticles Photocatalytic degradation of malachite green dye under UV light irradiation using calcium-doped ceria nanoparticles
Ibrahim A. Amar, Hebatallah M. Harara, Qamrah A. Baqul, Mabroukah A. AbdulQadir, Fatima A. Altohami, Mohammed M. Ahwidi, Ihssin A. Abdalsamed, Fatema A. Saleh
English Authors
Ibrahim A. Amar, Hebatallah M. Harara, Qamrah A. Baqul, Mabroukah A. AbdulQadir, Fatima A. Altohami, Mohammed M. Ahwidi, Ihssin A. Abdalsamed, Fatema A. Saleh
Abstract
In this study, photocatalytic activity of Ca-doped ceria (CDC) for malachite green (MG) degradation was investigated. CDC was successfully synthesized via co-precipitation method using ammonium oxalate as a precipitating agent. CDC was characterized using Fourier transform infrared spectroscopy (FTIR), powder X-ray diffraction (XRD), UV-Vis spectroscopy, and scanning electron microscopy (SEM). The band gap energy (Eg) of CDC was found to be 3.96 eV. In addition, the factors affecting the photodegradation of MG including; irradiation time, photocatalyst dosage, initial dye concentration, and solution temperature were studied. The results revealed that CDC could degrade approximately 93% of MG dye at the concentration of 6 mg/L, irradiation time of 90 min, photocatalyst dosage of 0.1 g, and solution temperature of 35 °C. The obtained results indicate that CDC is a promising material for the photocatalytic applications and can be used to eliminate very toxic dyes such as MG.
إبراهيم علي أحمد عمار | Ibrahim Ali Ahmed Amar | 15021