Thermosensitive Microgels-Decorated Magnetic Graphene Oxides for Specific Recognition and Adsorption of Pb(II) from Aqueous Solution.

ABSTRACT: Herein, we report a novel type of smart graphene oxide nanocomposites (MGO@PNB) with excellent magnetism and high thermosensitive ion-recognition selectivity of lead ions (Pb²⁺). The MGO@PNB are fabricated by immobilizing superparamagnetic Fe₃O₄ nanoparticles (NPs) and poly(N-isopropylacrylamide-co-benzo-18-crown-6 acrylamide) thermosensitive microgels (PNB) onto graphene oxide (GO) nanosheets using a simple one-step solvothermal method and mussel-inspired polydopamine chemistry. The PNB are composed of cross-linked poly(N-isopropylacrylamide) (PNIPAM) chains with numerous appended 18-crown-6 units. The 18-crown-6 units serve as hosts that can selectively recognize and capture Pb²⁺ from aqueous solution, and the PNIPAM chains

SUBMITTER: Pan L 

PROVIDER: S-EPMC6648301 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature