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Anti-Fouling Polyethersulfone Nanofiltration Membranes Aided by Amine-Functionalized Boron Nitride Nanosheets With Improved Separation Performance Publisher



Vatanpour V1 ; Karimi H2, 3 ; Imanian Ghazanlou S3 ; Mansourpanah Y4 ; Ganjali MR5, 6, 7 ; Badiei A8 ; Pourbashir E9 ; Saeb MR6
Authors
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Authors Affiliations
  1. 1. Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, Tehran, Iran
  2. 2. Central Chemistry Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
  3. 3. Nano Material Laboratory, School of Advanced Technologies, Iran University of Science and Technology, Tehran, 16846-13114, Iran
  4. 4. Membrane Research Laboratory, Lorestan University, Khorramabad, 68137-17133, Iran
  5. 5. School of Resources and Environment, University of Electronic Science and Technology of China, P.O. Box 611731, Xiyuan Ave, Chengdu, China
  6. 6. Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
  7. 7. Biosensor Research Center, Tehran University of Medical Sciences, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran, Iran
  8. 8. School of Chemistry, College of Science, University of Tehran, Tehran, Iran
  9. 9. Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran

Source: Journal of Environmental Chemical Engineering Published:2020


Abstract

Nowadays, the implementation of a desirable membrane with high permeation and rejection properties in liquid and gas separation processes has become a competitive necessity in water purification and desalination. In this field, nanostructured membranes have enticed many researchers and industrialists to use them. Herein, an amine-functionalized boron nitride (BN) embedded microporous polyethersulfone (AFBN-PES) membrane was fabricated to examine the anti-fouling properties and separation performance of mixed matrix membranes (MMMs). Also, fouling parameters such as intrinsic resistance (Rm), pore resistance (Rp), cake resistance (Rc), and total resistance (Rt) were investigated, and a significant improvement in the anti-fouling characteristics of the fabricated MMMs was detected. Surprisingly, water permeation across AFBN-PES membrane increased two-fold compared to the bare PES, while its BSA and Reactive Blue 19 dye rejection capability remained over 99 %. Faster solvent-nonsolvent exchange during the preparation of polymeric membrane owing to the presence of AFBN nanosheets enhanced the hydrophilicity, changed the mean pore size, and decreased the surface roughness beyond the creation of larger microvoids in the sub-layer of MMMs. © 2020 Elsevier Ltd.
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