Preparation of cationic poly(ionic liquids) functionalization of silica nanoparticles via multicomponent condensation reaction with significant enhancement of adsorption capacity

In this work, we present for the first time for surface functionalization of SiO2 nanoparticles with cationic poly(ionic liquids) through the Debus–Radziszewski condensation reaction. The resultant SiO2@PIL composites were further utilized for removal of Congo red (CR). Characterization results demonstrated that the cationic poly(ionic liquids) were successfully introduced on SiO2 nanoparticles. So as to assess the maximum adsorption capacity...