Selective Adsorption of Direct Group Anionic Dyes on Layered Double Hydroxide-Chitosan Composites

In this research, the potential of M2+/Al intercalated chitosan has been evaluated and good ability to reduce dyes in an aqueous solution. was prepared by anion exchange method coprecipitation a nitrogen atmosphere. Selectivity adsorption studied maintain for particle size direct (direct green, red, yellow). To evaluate process, conducted with kinetic, isotherm, thermodynamic parameters. The kinetic data fitted well pseudo-second order isotherm Langmuir qmax obtained 294.11 322.58 mg/g Zn/Al-chitosan Mg/Al-chitosan, respectively. Copyright © 2023 Authors, Published BCREC Group. This is open access article under CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).