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Open AccessArticle

Electrospun Nylon 6,6/ZIF-8 Nanofiber Membrane for Produced Water Filtration

1
Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia
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Faculty of Science, Universiti Teknologi Malaysia, Skudai 81310, Malaysia
3
National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Pathum Thani 12120, Thailand
*
Author to whom correspondence should be addressed.
Water 2019, 11(10), 2111; https://doi.org/10.3390/w11102111
Received: 1 August 2019 / Revised: 24 August 2019 / Accepted: 28 August 2019 / Published: 11 October 2019
(This article belongs to the Special Issue Advances in Water and Wastewater Monitoring and Treatment Technology)
This study develops electrospun nylon 6,6 nanofiber membrane (NFM), incorporating zeolitic imidazolate framework-8 (ZIF-8) as the additive for produced water (PW) filtration. Electrospun NFM is suitable to be used as a filter, especially for water treatment, since it has a huge surface area to volume ratio, high porosity, and great permeability compared to the conventional membranes. These properties also enhance its competitiveness to be used as reverse osmosis pre-treatment, as the final stage of PW treatment water reuse purpose. However, the fouling issue and low mechanical strength of NFM reduces hydraulic performance over time. Therefore, this study employs ZIF-8 as an additive to improve nylon 6,6 NFM properties to reduce fouling and increase membrane tensile strength. Results show that the optimum loading of ZIF-8 was at 0.2%. This loading gives the highest oil rejection (89%), highest steady-state pure water permeability (1967 L/(m2·h·bar)), 2× higher than untreated nylon 6,6 NFM with tensile strength 5× greater (3743 MPa), and a steady-state permeability of 1667 L/(m2·h·bar) for filtration of real produced water. View Full-Text
Keywords: electrospun nanofiber membrane; zeolitic-imidazolate-8; surface modification; desalination electrospun nanofiber membrane; zeolitic-imidazolate-8; surface modification; desalination
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Abd Halim, N.S.; Wirzal, M.D.H.; Bilad, M.R.; Md Nordin, N.A.H.; Adi Putra, Z.; Mohd Yusoff, A.R.; Narkkun, T.; Faungnawakij, K. Electrospun Nylon 6,6/ZIF-8 Nanofiber Membrane for Produced Water Filtration. Water 2019, 11, 2111.

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