Advertisement
01-12-2022 | Research paper
Sono-assisted synthesis of AgFeO2 nanoparticles for efficient removal of Basic Green-4 dye from aqueous solution
Published in: Journal of Nanoparticle Research | Issue 12/2022
Login to get accessAbstract
The present study is focused on the potential of delafossite-structured silver ferrite nanoparticles for the removal of the cationic dye, Basic Green-4 (BG-4) from the aqueous solution. The nanoadsorbent, AgFeO2, was synthesized by sono-assisted co-precipitation method and characterized by x-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), field emission scanning electron microscope (FESEM), fourier transform infrared spectroscopy (FTIR), electron dispersive spectroscopy (EDS), BET surface area, etc. Dye adsorption was observed 92.46% in 20 min and in 30 min, almost all dye (99%) was adsorbed at pH 8 using 20 mg of nanoparticles. The Langmuir isotherm model has given better conformity than the Freundlich model with 185.19 mg g−1 as maximum adsorption capacity at room temperature. The data was well described by a pseudo-second-order kinetic model indicating monolayer chemisorption. The calculated thermodynamic parameters indicated that the adsorption of BG-4 on nanoadsorbent was spontaneous and endothermic.