Title of article :
Photocatalytic degradation of malachite green dye under UV light irradiation using calcium-doped ceria nanoparticles
Author/Authors :
Amar ، Ibrahim A. Central Laboratory, Department of Chemistry - Faculty of Science - Sebha University , Harara ، Hebatallah M. Department of Chemistry - Faculty of Science - Sebha University , Baqul ، Qamrah A. Department of Chemistry - Faculty of Science - Sebha University , Abdul Qadir ، Mabroukah A. Department of Chemistry - Faculty of Science - Sebha University , Altohami ، Fatima A. Department of Chemistry - Faculty of Science - Sebha University , Ahwidi ، Mohammed M. Department of Chemistry - Faculty of Science - Sebha University , Abdalsamed ، Ihssin A. Department of Chemistry - Faculty of Science - Sebha University , Saleh ، Fatema A. Department of Chemistry - Faculty of Science - Sebha University
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.
Keywords :
dye photodegradation , Nanostructured materials , doped ceria catalyst , Semiconductor , Optical properties
Journal title :
Asian Journal of Nanoscience and Materials
Journal title :
Asian Journal of Nanoscience and Materials
