Silver nanoparticle-immobilized porous POM/PLLA nanofibrous membranes: efficient catalysts for reduction of 4-nitroaniline

摘要: In this study, porous polyoxymethylene/poly(L-lactide) (POM/PLLA) nanofibrous membranes (NFMs) immobilized with silver nanoparticles (Ag NPs) are obtained via the technique of electrospinning followed by method seed-mediated electroless depositing. POM/PLLA NFMs a high surface area were functionalized amino groups acting as anchors so that Ag NPs an average diameter about 7.6 nm well-dispersed on fibers NFMs. The loading content 20.7 wt% exhibit catalytic rate constant 21.25 × 10−3 s−1. Furthermore, excellent recoverable and cyclic feature give more than 99% conversion 4-nitroaniline (4-NA) after 4 reaction cycles. continuous 4-NA can remain higher 90% even hours running time at flow 0.4 mL min−1. Therefore, abovementioned approach based provides useful platform for fabrication noble metal nanocatalysts, which could be used efficient catalysts in various applications.