A new adsorption material based GO/PVP/AAc composite hydrogel characterization, study kinetic and thermodynamic to removal Atenolol drug from wast water

Abstract

Increased contamination of pharmaceutical compounds and their presence have led to real health problems. In this study used Poly (Graphene oxide/polyvinylpyrrolidone/acrylic acid (GO/PVP/AAc) as the innovator composite/hydrogel, were tried out atenolol drug. It has been proven to be effective in laboratory elimination of solutions. The composite prepration via free radical polymerization by using Specific ratios between (PVP/AAc) hydrogel and graphene Oxide (GO). The innovator adsorbent was estimated characterized by FT.IR, and FE-SEM. A suite adsorption tests were studied using to performed the Optimal conditions Of which contact time, pH. Dosage of adsorbent, ionic strength, and temperature. The kinetic experimental data were carried out via two model first pseudo order and second pseudo order, the adsorption proocess followed Pseudo second -order kinetic model with correlation coefficients greater than 0.999. The adsorption isotherms of composite could be illustrated well by the Freundlich Langmuir and Timken equations, The process of Atenolol adsorption on composite was depended on Freundlich and Timken isotherms more than other. The study discusses the thermodynamic parameters including changes in enthalpy, entropy, and Gibbs free energy.