Synthesis and Characterization of Zeolite NaY and its Glyphosate Adsorption Capacity with Varying Iron Content

In this study, Fe loaded zeolite NaY with varying iron contents was prepared and used as glyphosate adsorbents. A hydrothermal method to synthesize the from bagasse ash derived silica (Si-BA). Various (1.75 - 7.66 %w/w) were impregnated onto zeolite. Several techniques examine physicochemical properties of adsorbents, including X-ray diffraction (XRD), energy dispersive fluorescence (ED-XRF), N2 adsorption-desorption, field emission scanning electron microscopy (FE-SEM), pH drift method, zeta potential. a batch adsorption process an initial concentration 50 mg/L at 4, effect contact time investigated. The pseudo second order kinetic model fitted experimental data well, indicating that chemisorption controlled rate determining step for all outperformed bare in terms capacity. constant (K2) capacity equilibrium (qe) increased when adsorbents following order: 1.75 < 5.11 %Fe/NaY. Furthermore, intra-particle diffusion data, correlation coefficient R2 greater than 0.95. findings demonstrated both internal external contributed rate-determining step. Langmuir Freundlich isotherm models depict mechanism by best explained data. Glyphosate thus multilayer adsorbed on heterogeneous surfaced content, which is primarily due complexation between molecule. HIGHLIGHTS novel effectively improves compared faster kinetics, stronger adsorbate-adsorbent attraction higher have been obtained content main mechanisms are electrostatic interaction Fe-complexation GRAPHICAL ABSTRACT