Amine‐Terminated PAN Membranes as Anion‐Adsorber Materials
Sarah Glaß, Tomi Mantel, Michael Appold, Sitashree Sen, Muhammad Usman, Mathias Ernst, Volkan Filiz
Abstract
Abstract Anion‐adsorbing membranes provide an interesting possibility to remove toxic arsenate and chromate from drinking water. A promising way to prepare anion‐exchange materials is to introduce positively charged amine groups on polymers. In this study, polyacrylonitrile (PAN) ultrafiltration membranes were modified with amine functionalities on the membranes. The success of the modifications was demonstrated using infrared spectroscopy and zeta potential measurements. Additionally, the arsenate adsorption was analyzed. The modified membrane showed arsenate adsorption 5 times higher than the pristine PAN membrane.
Topics & Concepts
MembraneArsenatePolyacrylonitrileAmine gas treatingAdsorptionChemistryUltrafiltration (renal)Chromate conversion coatingZeta potentialIon exchangeInorganic chemistryChemical engineeringPolymerPolymer chemistryOrganic chemistryChromatographyIonArsenicChromiumNanoparticleBiochemistryEngineeringAdsorption and biosorption for pollutant removalChemical Synthesis and CharacterizationChromium effects and bioremediation