Advanced Oxidation Processes Coupled to Nanofiltration Membranes with Catalytic Fe⁰ Nanoparticles in Symmetric and Asymmetric Polyelectrolyte Multilayers.

ABSTRACT: The in situ synthesis of Fe⁰ particles using poly-(acrylic acid) (PAA) is an effective tool for fabricating catalytic membranes relevant to advanced oxidation processes (AOPs). Through their synthesis in polyelectrolyte multilayer-based nanofiltration membranes, it becomes possible to reject and degrade organic micropollutants simultaneously. In this work, we compare two approaches, where Fe⁰ nanoparticles are synthesized in or on symmetric multilayers and asymmetric multilayers. For the membrane with symmetric multilayers (4.0 bilayers of poly (diallyldimethylammonium chloride) (PDADMAC)/PAA), the in situ synthesized Fe⁰ increased its permeability from 1.77 L/m²/h/bar to 17.67 L/m²/h/bar when three Fe²⁺ binding/reducing cyc

SUBMITTER: Wang T 

PROVIDER: S-EPMC10141899 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature