Synthesis and Swelling Behavior of Hydrogel Graphene oxide-poly (AA-co-AM) Composite for Removal of Toxic Rhodamine-B dye

Usama S. Altimari; Mohammed A. Jawad; Layth S. Jasim; Aseel M. Aljeboree

Usama S. Altimari Al-Nisour University College, Baghdad, Iraq
Mohammed A. Jawad Al-Nisour University College, Baghdad, Iraq
Layth S. Jasim Department of Chemistry, College of Education, University of Al-Qadisiyah, Diwaniya, Iraq
Aseel M. Aljeboree Department of Chemistry, College of Sciences for Girls, University of Babylon, Hillah, Iraq

Keywords: Adsorption, B dye, Hydrogel, Pollution, Removal, Rhodamine Thermodynamic.

Abstract

This study aims to identify the most important properties of adsorption using a cheap, inexpensive (GO/P(AA-co-MA) hydrogel surface that can be prepared with ease and have high efficiency in removing dyes from water. The important physical and chemical properties of hydrogel surface were studied, including field emission scanning electron microscope (FE-SEM) and transmission electron microscopy (TEM). Also, several crucial factors in adsorption were studied, including the equilibrium time, effect of the pH, effect of the surface weight of the hydrogel, effect of salt concentration, and temperature. The results showed that the best adsorption efficiency for Rhodamine B dye removal was (36.8 mg/g), the best adsorption time was about one hour, and the best weight for dye removal was 0.05 g. The free Gibbs energy, enthalpy, and entropy were found the reaction is spontaneous.