Assembly of Smart Microgels and Hybrid Microgels on Graphene Sheets for Catalytic Reduction of Nitroarenes

Poly (N-isopropylacrylamide-acrylic acid) [p(NIPAM-AAc)] microgel was successfully fabricated using the precipitation polymerization method. Silver (Ag) nanoparticles and graphene oxide (G) were used to fabricate following hybrid microgels: Ag-p(NIPAM-AAc) (Ag-HMG), Ag-G-p(NIPAM-AAc) (Ag-G-HMG), G-p(NIPAM-AAc) (G-HMG). Ag-HMG, Ag-G-HMG, G-HMG characterized a Zetasizer UV-Vis spectroscopy. The reduction of series different compounds with comparable distinct chemical structures catalyzed by synthesized microgels. average size Ag found be ~50 nm. within microgels attached G sheets. Ag-p(NIPAM-AAc), Ag-G-p(NIPAM-AAc), for catalytic nitroarenes dyes. By comparing their apparent rate constant (kapp), duration, percentage reduction, activity HMG (hybrid microgel) as catalyst towards substrates investigated. Graphene sheets play role in electron relay among