Investigation of color removal with biomass supported MG/FE layered double hydroxide composite material

In this study, a novel composite material, Mg/Fe LDH@MO, was synthesized using Moringa oleifera via the co-precipitation method. The primary aim was to remove Remazol Yellow RR (RYRR) dye from aqueous solutions using the synthesized adsorbent. In the batch system, the effects of key parameters such as pH, adsorbent dosage, contact time, and initial dye concentration on the adsorption efficiency were investigated. In the continuous system, the influence of flow rate and adsorbent dosage on adsorption performance was evaluated. The adsorption kinetics followed the pseudo-second-order kinetic model, while the equilibrium data were best described by the Freundlich isotherm model. The structure of the synthesized adsorbent was characterized using SEM-EDX, BET, TG-DTA, XRD, and FTIR analyses. Experimental findings revealed that the dye removal efficiency of Mg/Fe LDH@MO for RYRR was approximately 90%. All results indicate that Mg/Fe LDH@MO is an effective, eco-friendly, and economically viable adsorbent for the removal of dyes from aqueous solutions.