Adsorption of Metal Ions by Amidoxime-based Polyacrylic Fibers

Abstract

Event Abstract Back to Event Adsorption of Metal Ions by Amidoxime-based Polyacrylic Fibers Anup Tuladhar1, Horng-Bin Pan1 and Chien M. Wai1* 1 University of Idaho, United States A new amidoxime-based polyacrylic fiber is synthesized from the acrylic yarn – cheap and commercially available raw material – by reacting with hydroxylamine followed by alkaline hydrolysis to prepare amidoxime [C(NH2) = NOH] and carboxylic (COOH) groups on the polymer strands. The adsorbent was characterized by infrared spectroscopy. FTIR study of the fiber after the lead adsorption experiment showed that the stretch of the N-O peak is distorted slightly and the COO¯ peak is red-shifted compared to the free adsorbent. The adsorption capacities of the fiber for different heavy metals were evaluated using a fixed volume of known concentration of the heavy metal salt solution with various amounts of the fiber at different temperatures. The adsorption capacity of lead (II) at room temperature is about 169.9 mg of lead per gram of the fiber. The rate of adsorption of lead ions in aqueous solution by the fiber adsorbent is rapid. The results also showed the pseudo-second-order model fits the experimental data very well with the correlation coefficient greater than 0.999. Keywords: Adsorption, acrylic fiber, Amidoxime-based Poly acrylic fiber, adsorbent, Lead, sorption Conference: National Organization for the Professional Advancement of Black Chemists and Chemical Engineers (NOBCChE) 45th Annual Conference , Orlando, Florida, United States, 17 Sep - 20 Sep, 2018. Presentation Type: Poster Presentation Topic: Analytical Chemsitry Citation: Tuladhar A, Pan H and Wai CM (2019). Adsorption of Metal Ions by Amidoxime-based Polyacrylic Fibers. Front. Chem. Conference Abstract: National Organization for the Professional Advancement of Black Chemists and Chemical Engineers (NOBCChE) 45th Annual Conference . doi: 10.3389/conf.fchem.2018.01.00057 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 19 Oct 2018; Published Online: 17 Jan 2019. * Correspondence: Prof. Chien M Wai, University of Idaho, Moscow, United States, cwai@uidaho.edu Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Anup Tuladhar Horng-Bin Pan Chien M Wai Google Anup Tuladhar Horng-Bin Pan Chien M Wai Google Scholar Anup Tuladhar Horng-Bin Pan Chien M Wai PubMed Anup Tuladhar Horng-Bin Pan Chien M Wai Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.