Novel infinite coordination polymer (ICP) modified thin-film polyamide nanocomposite membranes for simultaneous enhancement of antifouling and chlorine-resistance performance

Vahid Vatanpour*, Negin Iranpour Boroujeni, Mehmet Emin Pasaoglu, Ghader Mahmodi, Maryam Mohammadikish, Faeze Kazemi-Andalib, Ismail Koyuncu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

In this study, a hydrophilic and photocatalytic Infinite Coordination Polymer (ICP) nanoparticle was synthesized and used to fabricate reverse osmosis (RO) membrane to reduce antifouling and improve desalination performance. Co-BDC ICP (BDC = benzene-1,4-dicarboxylic acid) was synthesized and incorporated with different contents into an m-phenylene diamine aqueous solution to create a polyamide mixed matrix layer on polysulfone support with the interfacial polymerization (IP) technique. Due to the presence of –C[dbnd]O and end –COOH groups in the Co-ICP, the hydrophilicity of the fabricated membranes improved, caused to improving permeability and antifouling properties. By blending 0.02 wt% Co-ICP, NaCl solution flux increased from 37.4 (for unfilled) to 59.1 L/m2. h and the FRR improved from 84.0% to 95.5%. The salt rejection was also improved from 97.1% to 98.8% due to increased surface negative charge. In addition, due to the photocatalytic activity of the synthesized Co-ICP, when UV irradiation was applied during the membrane washing, the FRR of the membranes was improved. The addition of Co-ICP improved the chlorine resistance of the membranes probably because of acted as a trap for the chlorine radicals. This study confirmed that the low amounts of the applied Co-ICP could be an effective additive to improve the desalination performance of RO membranes.

Original languageEnglish
Article number120305
JournalJournal of Membrane Science
Volume647
DOIs
Publication statusPublished - 5 Apr 2022

Bibliographical note

Publisher Copyright:
© 2022 Elsevier B.V.

Funding

The authors acknowledge the Istanbul Technical University (ITU, Turkey) and Kharazmi University (KHU, Iran) for all the support provided. The Kharazmi University financially supported from Kharazmi membrane research core (Grant number: H/4/360 ). The authors acknowledge the Istanbul Technical University (ITU, Turkey) and Kharazmi University (KHU, Iran) for all the support provided. The Kharazmi University financially supported from Kharazmi membrane research core (Grant number: H/4/360).

FundersFunder number
Kharazmi UniversityH/4/360
Istanbul Teknik Üniversitesi

    Keywords

    • Antifouling
    • Chlorine resistance
    • Desalination
    • Infinite coordination polymer (ICP)
    • Membranes

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