The facile synthesis of poly(acrylate/acrylamide) titanium dioxide nanocomposite for groundwater ammonia removal

Abstract

Recent researches are moving to the removal of the chemical contaminants from groundwater. The present work is to remove ammonia from groundwater based on acrylate/acrylamide hydrogel. This hydrogel was synthesized by the redox free radical addition polymerization technique. A nanocomposite of acrylate/acrylamide hydrogel with TiO2 was fabricated. The synthesized hydrogel and composite were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Fourier-transform infrared spectroscopy analysis. The influence of contact time, adsorbent dose, and temperature on the efficiency of the fabricated polymeric materials on the removal of ammonia from groundwater were investigated. The sorption data were analyzed and fitted to linearized adsorption isotherm of the Langmuir, Freundlich, and Temkin equations. The efficacy was equal to 100% through 50 min. The obtained data show both chemical and physical adsorption of ammonia.