A study on the synthesis of MIL-100(Fe) and its adsorption capacity for methylene blue
Abstract
In this work, mesoporous iron (III) carboxylate [MIL-100(Fe)] was synthesized via the reaction of ferrous sulfate, trimesic acid (H3BTC), and HF-free during hydrothermal reaction. The synthesized samples were characterized by XRD, TEM, BET, FT-IR and, TGA. MIL-100(Fe) is synthesized and applied as an adsorbent to remove dye from aqueous solution in view of assessing the adsorption isotherms, kinetics. The adsorption isotherms were adequately fitted with the Langmuir model and the kinetic data were followed by the pseudo-second-order model. The maximum adsorption capacity of MIL-100(Fe) for methylene blue (MB) reached 344,828 mg.g-1. The high adsorption capacity could be attributed to high surface area and suitable pore structure. These structures indicated that MIL-100(Fe) exhibited great potential to remove types of dyes in wastewater.
Keywords: MIL-100(Fe), adsorption, methylene blue
