Polymer inclusion membranes as substrates for controlled in-situ gold nanoparticle synthesis

摘要: Abstract Poly(vinyl chloride) (PVC)-based polymer inclusion membranes (PIMs) containing the commercial anionic extractant Aliquat 336 and in some cases also 1-dodecanol as plasticizer were used for fabrication of PIM surface-confined Au nanoparticles (NPs) by reduction Au(III), extracted into [AuCl4]− complex. The experimental conditions controlling NP size distribution studied using scanning electron microscopy (SEM) X-ray diffraction (XRD). former technique showed unique distributions dependent on reducing agent while XRD data found to be consistent with those obtained wide-angle scattering (WAXS) revealed that crystallite decreased when temperature, time, or strength increased. Conditions producing supported NPs could appropriate chemical sensing catalytic applications an acceptable thermal stability, based thermogravimetric analysis (TGA) measurements, established. Loaded saturation Au(III) PVC-based PIMs 20 wt% 10 wt% suitable dense layers which applications. Partially loaded without a 30 wt% allowed discrete disperse membrane surface expected This study demonstrates are attractive low-cost substrates synthesis immobilization controlled size, density shape can potentially