title: An investigation of carbon dioxide capture by chitin acetate/DMSO binary system.
abstract: Chitin is considered to be the second most abundant naturally-occurring polysaccharide. Also, dimethyl sulfoxide (DMSO) is the second highest dielectric constant polar solvent after water. Despite the low solubility of chitin in common organic solvents, and due to its high nitrogen content, it may serve as a potential scrubbing agent "wet scrubbing" for carbon dioxide (CO2) capturing as an alternative to monoethanolamine "renewables for renewables approach". Briefly, a detailed investigation for the utilization of low molecular weight, chitin-acetate (CA) in DMSO for the capturing of CO2 is reported. As carbonation process takes place, the formation of ionic alkylcarbonate was confirmed throughout spectroscopic and computational studies. Supramolecular chemisorption was proven throughout (1)H Nuclear Magnetic Resonance ((1)H NMR) together with the absence of sorption of CO2 by the monomeric repeating unit, glucosamine hydrochloride. Further, Density Functional Theory (DFT) calculations supported the formation of the CA/CO2 adduct through a newly formed supramolecular ionic interaction and hydrogen bonding along the oligosaccharide backbone between the neighboring ammonium ion and hydroxyl functional groups. The sorption capacity was measured volumetrically within an in situ Attenuated Total Reflectance-Fourier Transform Infrared coupled (in situ ATR-FTIR) autoclave at 25.0°C, and 4.0bar CO2, with a maximum sorption capacity of 3.63 [Formula: see text] /gsorbent at 10.0% (w/v).
authors: Department of Chemistry, The Hashemite University, P.O. Box 150459, Zarqa 13115, Jordan.
authors: Ala'a F
authors: AF
authors: Eftaiha
authors: Department of Chemistry, The Hashemite University, P.O. Box 150459, Zarqa 13115, Jordan.
authors: Fatima
authors: F
authors: Alsoubani
authors: Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany.
authors: Khaleel I
authors: KI
authors: Assaf
authors: WACKER-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstraße 4, 85747 Garching bei München, Germany.
authors: Carsten
authors: C
authors: Troll
authors: WACKER-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstraße 4, 85747 Garching bei München, Germany.
authors: Bernhard
authors: B
authors: Rieger
authors: The Jordanian Pharmaceutical Manufacturing Company (JPM), P.O. Box 94, Naour 11710, Jordan.
authors: Aseel H
authors: AH
authors: Khaled
authors: WACKER-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstraße 4, 85747 Garching bei München, Germany; The Jordanian Pharmaceutical Manufacturing Company (JPM), P.O. Box 94, Naour 11710, Jordan; Pharmaceutical and Chemical Engineering Department, German Jordanian University, 35247 Amman 11180, Jordan. Electronic address: abdussalam.qaroush@tum.de.
authors: Abdussalam K
authors: AK
authors: Qaroush
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry*; D002686:Chitin / Q000737:chemistry*; D004121:Dimethyl Sulfoxide / Q000737:chemistry*
chemical_list: D002686:Chitin; D002245:Carbon Dioxide; D004121:Dimethyl Sulfoxide
keywords: Carbon dioxide capturing; Chitin acetate; Green sorbent; Supramolecular chemisorption; Sustainability; Wet scrubbing