The goal of this research is to create ceria nanoparticles using a sol-gel method and aqueous Allium sativum (garlic) extract, as well as to investigate the use of the synthesised samples in Congo Red dye removal from water via adsorption and photo Fenton degradation. X-ray diffraction, Fourier Transform infrared spectroscopy, diffuse reflectance spectroscopy, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and N2 adsorption-desorption isotherm methods were used to characterise the structural, optical, and electronic properties of ceria samples prepared with different amounts of garlic extract. The results revealed that the cubic fluorite ceria nanoparticles generated are spherical, with particle sizes ranging from 10 to 40 nanometers. N2 adsorption investigations revealed that the ceria samples are mesoporous, with narrow slit-like pores. In the removal of a model pollutant Congo red, the synthesised compounds had both adsorption and photo Fenton activity. In all cases, the effect of varied reaction parameters such as duration, ceria dosage, dye solution volume, and dye concentration on % elimination was investigated. Using the best CeO2 sample, a maximum of 96 percent Congo red was removed by adsorption, and 100 percent dye was eliminated by photo Fenton degradation.
Author (S) Details
K. C. Remani
Department of Chemistry, Sree Neelakanta Government Sanskrit College Pattambi, Palakkad-679306, Kerala, India.
Zahira Yaakob
Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi 43600, Selangor, Malaysia.
N. N. Binitha
Department of Chemistry, Sree Neelakanta Government Sanskrit College Pattambi, Palakkad-679306, Kerala, India.
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