Synthesis of hydrophilic surface ion-imprinted polymer based on graphene oxide for removal of strontium from aqueous solution

Abstract

Scheme depicting the ion-imprinting process on GO surface by RAFT polymerization.

Synthesis and characterization of surface ion-imprinted polymer based on SiO2-coated graphene oxide for selective adsorption of uranium(vi)

“…Traditional IIP has encountered with various limitations such as incomplete template removal, slow mass transfer and inaccessible binding sites situated deep inside the bulk of the polymer matrix. 10 However, to the best of our knowledge, a surface IIP composite based on graphene oxide for selective adsorption of uranium(VI) has not been reported. 31 GO, with good hydrophilicity, high specific surface area and excellent mechanical properties, should be an excellent candidate as a supporting material for preparing surface IIP composites to obtain rapid adsorption and increase the accessibility of the binding sites.…”

“…9 Moreover, the thermal stability and electrical properties of polymers could be greatly improved by the incorporation of GO sheets into the composite materials. 10,11 Uranium is widespread in the environment. The inhalation of uranium or its compounds results in progressive or irreversible renal injury and in acute cases may lead to kidney failure and death due to its weak radioactivity and chemical toxicity.…”

Monodisperse magnetic ion imprinted polymeric microparticles prepared by RAFT polymerization based on γ-Fe2O3@meso-SiO2nanospheres for selective solid-phase extraction of Cu(ii) in water samples

“…The adsorption performance of different polymers was carried out at room temperature under the saturated adsorption condition, and the saturated adsorption capacities of IIP-RAFT, IIP-TP and NIP were shown in Fig. 48 Above all, IIP-RAFT was appropriate to the removal of Cu(II) from aqueous solution. Both the IIPs prepared by RAFT and traditional free-radical polymerization proved to bind much more template Cu(II) than NIP, suggesting the presence of specic binding sites in these IIPs.…”

Recent advances in the synthesis and applications of graphene–polymer nanocomposites

“…30 The well-defined morphologies were probed by atomic force microscope (AFM), scanning electron microscope (SEM), and TEM, and the fraction of the grafted polymer was 44 wt% as determined by thermo gravimetric analysis (TGA). 54 In their study, methylacrylic acid (MAA) was used as the hydrophilic functional monomer. 6.…”