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 language | English |
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Article number | 120305 |
Journal | Journal of Membrane Science |
Volume | 647 |
DOIs | |
Publication status | Published - 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).
Funders | Funder number |
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Kharazmi University | H/4/360 |
Istanbul Teknik Üniversitesi |
Keywords
- Antifouling
- Chlorine resistance
- Desalination
- Infinite coordination polymer (ICP)
- Membranes