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Quaternized Diaminobutane/Poly(vinyl alcohol) Cross-Linked Membranes for Acid Recovery via Diffusion Dialysis.
Ashraf, Muhammad Adnan; Islam, Atif; Butt, Muhammad Arif; Mannan, Hafiz Abdul; Khan, Rafi Ullah; Kamran, Kashif; Bashir, Shahid; Iqbal, Javed; Al-Ghamdi, Ahmed A; Al-Sehemi, Abdullah G.
Afiliación
  • Ashraf MA; Institute of Polymer and Textile Engineering, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan.
  • Islam A; Institute of Polymer and Textile Engineering, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan.
  • Butt MA; Institute of Chemical Engineering and Technology, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan.
  • Mannan HA; Institute of Polymer and Textile Engineering, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan.
  • Khan RU; Institute of Polymer and Textile Engineering, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan.
  • Kamran K; Department of Physics, University of Agriculture, Faisalabad 38040, Pakistan.
  • Bashir S; Centre for Ionics University of Malaya, Department of Physics, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
  • Iqbal J; Center of Nanotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
  • Al-Ghamdi AA; Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
  • Al-Sehemi AG; Department of Chemistry, Faculty of Science, Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia.
Membranes (Basel) ; 11(10)2021 Oct 14.
Article en En | MEDLINE | ID: mdl-34677552
Diffusion dialysis (DD) using anion exchange membranes (AEM) is an effective process for acid recovery and requires the preparation of suitable materials for AEMs, characterized by unique ions transport properties. In this work, novel AEMs composed of quaternized diaminobutane (QDAB) and poly(vinyl alcohol) (PVA) were cross-linked by tetraethoxysilane (TEOS) via the sol-gel process. The prepared AEMs were systematically characterized by Fourier-transform infrared (FTIR) spectroscopy, ion-exchange capacity (IEC) analysis, thermo gravimetric analysis (TGA), water uptake, linear expansion ratio (LER), and mechanical strength determination, scanning electron microscopy (SEM), and DD performance analysis for acid recovery using a hydrochloric acid/iron chloride (HCl/FeCl2) aqueous mixture and varying the QDAB content. The prepared AEMs exhibited IEC values between 0.86 and 1.46 mmol/g, water uptake values within 71.3 and 47.8%, moderate thermal stability, tensile strength values in the range of 26.1 to 41.7 MPa, and elongation from 68.2 to 204.6%. The dialysis coefficient values were between 0.0186 and 0.0295 m/h, whereas the separation factors range was 24.7-44.1 at 25 °C. The prepared membranes have great potential for acid recovery via diffusion dialysis.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Membranes (Basel) Año: 2021 Tipo del documento: Article País de afiliación: Pakistán Pais de publicación: Suiza
Texto completo
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XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Membranes (Basel) Año: 2021 Tipo del documento: Article País de afiliación: Pakistán Pais de publicación: Suiza