Fabrication of novel Zn (II)-imidazole based mixed matrix membranes for heavy metal removals from drinking water
Author:
Ali Zahid12, Naz Aneeza2, Haq Nouman Ul3, Nazir Arif2, Munawar Aisha4, Khan Asim Laeeq3, Elqahtani Zainab Mufarreh5, Alwadai Norah5, Younas Umer2, Iqbal Munawar26
Affiliation:
1. State key Laboratory of Organic-Inorganic Composites , Beijing University of Chemical and Technology , Beijing 100029 , China 2. Department of Chemistry , The University of Lahore , Lahore , Pakistan 3. Department of Chemical Engineering , COMSATS University Islamabad , Lahore campus (53700) , Lahore , Pakistan 4. Department of Chemistry , University of Engineering and Technology , Lahore , Pakistan 5. Department of Physics, College of Sciences , Princess Nourah bint Abdulrahman University , P.O. Box 84428 , Riyadh 11671 , Saudi Arabia 6. Department of Chemistry, Division of Science and Technology , University of Education , Lahore , Pakistan
Abstract
Abstract
Heavy metals presence in the potable water is a terrible dilemma notably for emergent countries and could be carcinogenic. Currently, interfacial polymerization (IP) was applied for the production of thin film nanocomposite forward osmosis (TFN-FO) membrane using polyacrylonitrile support. For this purpose, Zn (II)-imidazole metal Organic framework (MOF) was employed as a nanofiller into polymeric membranes this modification was found useful for the removal of heavy metals. Different characterization techniques like scanning electron microscopy (SEM), Energy dispersive X-ray spectroscopy (EDS), Fourier transform infra-red spectroscopy (FTIR) and X-ray diffraction (XRD) analyses were used for the assessment of morphology, elemental arrangement, functional groups and crystalline nature of the prepared FO membrane. It was observed that synthesized Zn-MOF based FO membrane displays high water flux by increasing the number of pores in the membrane. Additionally, this particular FO membrane was custom-made for lower reverse solute flux and concentration polarization. This ensures minimum withdrawal of salt from the draw solution (DS) to the feed solution (FS). So, the prepared Zn-MOF based FO membrane produce synergistic outcomes for the removal of metals and this strategy could possibly be used as novel way for removal of toxic pollutants.
Publisher
Walter de Gruyter GmbH
Subject
Physical and Theoretical Chemistry
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