Efficient adsorption of Rhodamine B using a composite of Fe3O4@zif-8: Synthesis, characterization, modeling analysis, statistical physics and mechanism of interaction

ABSTRACT. The utilization of a metal organic framework (ZIF-8) modified by Fe3O4 nanoparticles was used to accomplish adsorption Rhodamine B (RB) from aqueous solutions. SEM, XRD, IR, and BET analyses were all characterize the composite (Fe3O4@ZIF-8). surface area this adsorbent 478.4 m2/g. X-Ray diffraction spectroscopy detect modification utilizing electron microscopy (SEM) scanning with 48 nm in diameter average particle size according statistical physics method. Fe3O4@ZIF-8 appears have dispersive interactions pore characteristics, quantum chemistry simulations. On RB, influences contact time, quantity, dye concentration, temperature studied. Langmuir Freundlich isotherm models study isotherms. Anticipated overall potential 647.5 mg/g, zero-charge point (pHPZC) 4.3. fitted using whereas pseudo second order match kinetics. Energy (Ea) is 28.7 kJ/mol, indicating chemisorption phase. process endothermic unpredictable, thermodynamic experiments. It also looked into ethanol as solvent desorption deposited cationic dye.
 
 KEY WORDS: Fe3O4@ZIF-8, B, Adsorption models, Thermodynamics
 Bull. Chem. Soc. Ethiop. 2023, 37(1), 211-229. DOI: https://dx.doi.org/10.4314/bcse.v37i1.17