期刊
RSC ADVANCES
卷 10, 期 7, 页码 4045-4057出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ra09672h
关键词
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资金
- National Natural Science Foundation of China [21908040, 21878068]
- Natural Science Foundation of Hebei Province [B2017202056]
- Program for Top 100 Innovative Talents in Colleges and Universities of Hebei Province [SLRC2017029]
- Hebei High Level Personnel of Support Program [A2016002027]
The nanosized UiO-66-NH2 metal-organic framework (MOF) material was synthesized and modified by palmitoyl chloride to enhance the dispersibility and restrain the aggregation of MOF particles in the organic phase. Then the above nanomaterial was introduced into interfacial polymerization to prepare thin film nanocomposite (TFN) nanofiltration membranes. The prepared membranes displayed ridge-valley shaped Turing structure surface morphology with membrane thickness around 380 nm. The FE-SEM, ATR-FTIR and XPS characterization showed the polyamide layer was fabricated on the substrate surface. The TFN membranes showed higher hydrophobicity, zeta potential and roughness than TFC membranes. Due to the introduction of MOF and the formation of MOF/polyamide interfacial passageways, the TFN membranes showed higher water permeability but slightly lower rejection properties than TFC membranes. Compared with the TFN membranes prepared from pristine UiO-66 and UiO-66-NH2, the TFN membrane prepared from modified UiO-66-NH2 showed better rejection properties because of its superior dispersibility in the organic phase.
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