Synthesis and Characterization of Sodium Alginate-G-Poly (AAC-AAM)/BC Nanocomposite Hydrogel and its Application for Dyes Adsorption

Abstract

This study included the preparation of the SA_g_p (AAc_AAM)/BC hydrogel nanocomposite by using the free radical copolymerization of acrylic acid (AAC), acryl amide (AAm), sodium alginate (SA) and bentonite (BC) where N, N_Methlene diacrylamide (MBA) was used as crosslinking agent and potassium Persulfate (KPS) is a starter in the preparation of free radicals, as it studies the possibility of its use in the adsorption of crystal violet dye. The thermal, structural and surface properties of the prepared surface were diagnosed using several techniques such as FTIR spectroscopy. The adsorption isotherms according to the Giles classification were of class (L4) and that the adsorption isotherms of CV dye applied to the Lankmeier model. The results of the study of the adsorption kinetics of the dye on the surface of the adsorbent composite showed that the CV dye followed the false second order.