Synthesis, Characterization, and Methyl Green Removal of Epichlorohydrin Crosslinked Schiff Base Chitosan/Fe۲O۳ Nanocomposite

Adsorption process has been widely used as one of the efficient methods in removing pollutants that are hardly biodegradable. In this study, new epichlohydrine crosslinked Schiff base chitosan/Fe۲O۳ nanocomposite was prepared and applied as adsorbent material. The synthesized adsorbent was characterized by FT-IR, XRD, TGA/DTA, DSC, EDS, BET, XRD and FE-SEM to explore morphology, structure and functional groups. The adsorbent was applied for removal of methyl green (MG) from aqueous solutions through batch experiments. Different parameters such as adsorbent dosage, pH and contact time were considered. The removal efficiency of ۹۴.۸ % was acquired at the optimum condition of pH = ۸, adsorbent dosage of ۰.۰۲ g and contact time of ۳۰ min. The adsorption capacity of the sorbent was found to be ۴۷.۴ mg/g. This nanocomposite could be a suitable candidate for the removal of other organic dyes.

Keywords:

Epichlohydrin , Crosslinked , Schiff base chitosan , Fe۲O۳ , Nanocomposite , Methyl green removal