Engineering of responsive polymer based nano-reactors for facile mass transport and enhanced catalytic degradation of 4-nitrophenol

Inorganic nanoparticles for reduction of hexavalent chromium: Physicochemical aspects

“…The value of apparent rate constant of the reaction is a function of Catalyst concentration and has been widely reported for various catalytic reactions ( Naseem et al, 2018 ; Begum et al, 2018b , c ) including reduction of Cr(VI) to Cr(III) ( Zhu et al, 2019 ; Bhowmik et al, 2014 ). Catalyst provides active sites to the reactant molecules for adsorption.…”

Ag–Au bimetallic nanocomposites stabilized with organic–inorganic hybrid microgels: synthesis and their regulated optical and catalytic properties

“…It was showed that these polymer microgels do not only stabilize Ag NPs in polymer network but also enhance the mass transport of hydrophilic reactant 4-NP from outside to inside the polymer network. [37][38][39] Compared to pure PNIPAM network chains, the swelling and shrinkage of poly(N-isopropylacrylamide-co-3-methacryloxypropyltrimethoxysilane) (P(NIPAM-co-MAPTMS)) organicinorganic hybrid microgels with temperature was partly limited because the thermosensitive PNIPAM chains were separated by rigid MAPTMS segments. 40,41 Furthermore, the rigid MAPTMS segments could enhance the three-dimensional porous inexibility of P(NIPAM-co-MAPTMS), which is favor for the diffusion and mass transfer.…”

Silver nanoparticle-loaded microgel-based etalons for H2O2sensing

“…AgNPs were generated in the etalons by loading the microgels with Ag + followed by their in situ reduction with NaBH 4 . [34][35][36][37] Briey, a 10 mm 2 etalon was cut from the as-prepared larger etalon (25 Â 25 mm) and was subsequently immersed in 20 mL of DI water. The solution pH was then adjusted to 8.5 with 10 mM NaOH and the etalon was allowed to incubate overnight.…”