Synthesizing a Novel Zr/Fe/Al-Incorporated Cross-linked Chitosan as Absorbent for Effective Removal of Fluoride from Aqueous Solution

Zr/Fe/Al-modified chitosan beads were synthesized as a potential absorbent to remove fluoride on wastewater. In this study, the effects of solution pH, dosage, initial concentration, adsorption time, and coexisting ions evaluated through series experiments. It was found that an capacity 37.49 mg/g achieved in conditions with pH at 6.0, 1.6 g/L dose CS-ZFA, 60 mg/L 120 min time. The results indicated by CS-ZFA can be explained Langmuir isotherm. Moreover, kinetic studies process good compliance pseudo-second-order kinetics intra-particle diffusion model. newly absorbents characterized SEM, EDS, FTIR, TG analysis. Based characterization, high is due electrostatic attraction between amino metal formation complex for fluoride. These excellent properties revealed effective removing aqueous solutions environmental remediation.