RETRACTED: Application of Super-Amphiphilic Silica-Nanogel Composites for Fast Removal of Water Pollutants

Abstract

This work first reports the preparation of super-Amphiphilic silica-nanogel composites t reduce the contact angle of water to increase the diffusion of pollutant into adsorbents. In this respect the silica nanoparticles were encapsulated into nanogels based on ionic and nonionic polyacrylamide by dispersion polymerization technique. The morphologies and the dispersion stability of nanoge composites were investigated to clarify the ability of silica-nanogel composites to adsorb at differen interfaces. The feasibility of silica polyacrylamide nanogel composites to act as a high-performanc adsorbent for removal of methylene blue (MB) dye and heavy metals (Co2+ and Ni2+) from aqueou solution was investigated. The surface tension, contact angle, average pore size, and zeta potentia of the silica-nanogel composites have been evaluated. The MB dye and heavy metal adsorptio capacity achieved Qmax = 438-387 mg/g which is considerably high. The adsorption capacity result are explained from the changes in the morphology of the silica surfaces as recorded from scannin electron microscopy (SEM)