Removel of a Bsoprolol drug from Aqueous Solutions onto Graphene Oxide/Carboymethyl cellulose sodium / Acryl acid polymer Composite by Adsorption

Abstract

A polymer-based composite hydrogel was synthesized through chemical crosslinking by a free radical polymerization of acryl acid as a monomers and GO. GO/P (CMC -co-AA) was prepared. This composite hydrogel, were synthesized by using potassium persulfate as initiator and N, N -methylene bisacrylamide as cross-linker., X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field-emission scanning electron microscopy (FE-SEM), thermo gravimetric analysis (TGA) . Moreover, GO/P(CMC-co-AA) -structures were studied to show (BSP) adsorption from aqueous solution. The adsorption isotherms of Bisoprolol on the GO/P(CMC-co-AA) composite could be illustrated well by the Freundlich and Langmuir model. The thermodynamic factors (ΔG°, ΔH° and ΔS°) estimated, from the temperature-dependent isotherms revealed that the adsorption reaction of Bisoprolol on the GO/P(CMC-co-AA) composite was an exothermic and spontaneous process, obtaining an increase in the thermodynamic stability of the adsorption system . Finally, the results indicated that adsorption process followed two models and demonstrated that intraparticle diffusion plays a significant role in the adsorption mechanism.