Thin-film composite membrane for desalination containing a sulfonated UiO-66 material
Journal of Materials Science, ISSN: 1573-4803, Vol: 58, Issue: 7, Page: 3134-3146
2023
- 3Citations
- 6Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Article Description
Desalination through reverse osmosis (RO) membrane is one of the most popular ways. However, conventional RO membranes meet a trade-off between salt rejection and water flux which limit their comprehensive performance. In this work, sulfonated zirconium (IV)-carboxylate metal–organic framework (MOF) material UiO-66-SOH was successfully synthesized, and thin-film nanocomposite (TFN) with UiO-66-SOH-incorporated polyamide (PA) layer was fabricated. Angstrom-sized UiO-66-X ion transport channels with different functional groups in TFN membranes change the membrane morphology and chemistry and accelerate the penetration of water molecules while maintaining the high ion screening effect. As a result, compared to the pristine TFC membrane, the optimized TFN-UiO-66-SOH membrane exhibited an increase in water molecules permeability to 347% and still maintained a salt rejection with ~ 94.7% under 2000 ppm NaCl solution with reverse osmosis (RO) mode, leading to a great improvement of intrinsic separation properties. The improved performance was owing to the size exclusion effect and hydrophilic nature of UiO-66-SOH particles. What is more, the additional water migration channels through the incorporated UiO-66-SOH nanoparticles lead to a boosting water permeation and show optimized performance for desalination. Graphical abstract: [Figure not available: see fulltext.]
Bibliographic Details
Springer Science and Business Media LLC
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