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Novel Mixed Matrix Membranes Based on Polymer of Intrinsic Microporosity PIM-1 Modified with Metal-Organic Frameworks for Removal of Heavy Metal Ions and Food Dyes by Nanofiltration

Authors :
Anna Kuzminova
Mariia Dmitrenko
Andrey Zolotarev
Aleksandra Korniak
Daria Poloneeva
Artem Selyutin
Alexei Emeline
Alexey Yushkin
Andrew Foster
Peter Budd
Sergey Ermakov
Source :
Membranes, Vol 12, Iss 1, p 14 (2021)
Publication Year :
2021
Publisher :
MDPI AG, 2021.

Abstract

Nowadays, nanofiltration is widely used for water treatment due to its advantages, such as energy-saving, sustainability, high efficiency, and compact equipment. In the present work, novel nanofiltration membranes based on the polymer of intrinsic microporosity PIM-1 modified by metal-organic frameworks (MOFs)—MIL-140A and MIL-125—were developed to increase nanofiltration efficiency for the removal of heavy metal ions and dyes. The structural and physicochemical properties of the developed PIM-1 and PIM-1/MOFs membranes were studied by the spectroscopic technique (FTIR), microscopic methods (SEM and AFM), and contact angle measurement. Transport properties of the developed PIM-1 and PIM-1/MOFs membranes were evaluated in the nanofiltration of the model and real mixtures containing food dyes and heavy metal ions. It was found that the introduction of MOFs (MIL-140A and MIL-125) led to an increase in membrane permeability. It was demonstrated that the membranes could be used to remove and concentrate the food dyes and heavy metal ions from model and real mixtures.

Details

Language :
English
ISSN :
12010014 and 20770375
Volume :
12
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Membranes
Publication Type :
Academic Journal
Accession number :
edsdoj.3698b7181589406bbeebaaa27a66f73d
Document Type :
article
Full Text :
https://doi.org/10.3390/membranes12010014