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Document Type : Original Research Article


1 Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran

2 Department of Chemistry, Faculty of Science, Islamic Azad University, Shahremajlesi, Iran


 New modified chitosan Schiff base (3E-2H-BCs) was prepared via a condensation reaction between 3-ethoxy-2-hydroxybenzaldehyde and chitosan. The title compound 3E-2H-BCs was characterized by various techniques such as FT-IR, UV-Vis, XRD, SEM and TG-DTA. The results show that the title compound 3E-2H-BCs was successfully prepared. In addition, the title compound 3E-2H-BCs applied as an efficient adsorbent for methyl green (MG) removal from aqueous solution and the effect of contact time and adsorbent dosage has been studied. The equilibrium of dye adsorption by 3E-2H-BCs was reached at 1 min contact time at the presence of MG. The dye adsorption results show that the title compound 3E-2H-BCs is as an efficient adsorbent for other dye removal from wastewater.

Graphical Abstract

Fast removal of methyl green from aqueous solution by adsorption onto new modified chitosan Schiff base


Main Subjects

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