Calcium-alginate/HKUST-1 interlayer-assisted interfacial polymerization reaction enhances performance of solvent-resistant nanofiltration membranes

Li, Haike; Huang, Lijinhong; Li, Xindong; Huang, Wanfu; Li, Lang; Li, Wenhao; Cai, Meng; Zhong, Zhaohuang

doi:10.1016/j.seppur.2022.123031

Cited by 21 publications

(3 citation statements)

References 66 publications

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“…In an investigation by Li et al, the solvent stability and flux of OSN membranes was enhanced. 84 Based on hexane diamine cross-linked polyetherimide membranes, in situ calcium alginate hydrogel doped with MOF (HKUST-1) was constructed as an interlayer, after that, the OSN membrane with an integral covalent bond construction was made from interfacial polymerization reaction and activation of DMF. The This journal is © The Royal Society of Chemistry 2024 alginate/MOF interlayer limited the piperazine diffusion rate by H bonding in addition to covalent attachment.…”

Section: Polymer/biopolymer-based Mof Membranes For Osn Applicationmentioning

confidence: 99%

Recent advances in the fabrication of organic solvent nanofiltration membranes using covalent/metal organic frameworks

Azadi,

Singh,

Dinari

et al. 2024

Chem. Commun.

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Section: Polymer/biopolymer-based Mof Membranes For Osn Applicationmentioning

confidence: 99%

Recent advances in the fabrication of organic solvent nanofiltration membranes using covalent/metal organic frameworks

Azadi,

Singh,

Dinari

et al. 2024

Chem. Commun.

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“…Compared with traditional interfacial polymerization, the addition of an interlayer helps increase the interfacial concentrations of amine monomers and control their diffusion rate, thereby regulating the interfacial polymerization speed, which is advantageous for the formation of ultra‐thin, defect‐free, and structurally stable separation layers 11 . Li et al fabricated a TFN membrane with a CaAlg hydrogel incorporating HKUST‐1 as the interlayer 12 . The CaAlg‐HKUST‐1 interlayer restricted the pyrimidine diffusion rate through hydrogen bonding and covalent bonding, resulting in the thinning of the polyamide layer.…”

Section: Introductionmentioning

confidence: 99%

“…11 Li et al fabricated a TFN membrane with a CaAlg hydrogel incorporating HKUST-1 as the interlayer. 12 The CaAlg-HKUST-1 interlayer restricted the pyrimidine diffusion rate through hydrogen bonding and covalent bonding, resulting in the thinning of the polyamide layer. Additionally, the structural stability of the membrane was significantly enhanced by connecting the base membrane and the polyamide layer through internal cohesive covalent bonds.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the enhancement of solvent‐resistant nanofiltration membrane performance utilizing PDA‐UiO‐66@CNT as an interlayer

Zhong,

Li,

et al. 2024

J of Applied Polymer Sci

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With the growing complexity of separation systems, the application of thin film composite nanofiltration (TFN) membranes in organic solvent separation faces numerous challenges. To augment its solvent stability, an in‐situ constructed dopamine hydrogel doped with UiO‐66@CNT was developed as an intermediate layer on a polyetherimide (PEI) ultrafiltration membrane. Subsequent interfacial polymerization on this interlayer led to the formation of a solvent‐resistant nanofiltration membrane with a vast covalent bond structure, large specific surface area, and enhanced hydrophilicity. Our findings revealed that when the CNT loading in the UiO‐66@CNT composite nanoparticles was 2 wt%, the TFN‐U2C2 membrane exhibited a maximum pure water flux of 126.32 L/(m2·h) and a methanol flux of 45.45 L/(m2·h). The rejection rates for Congo red aqueous and methanol solutions were 96.88% and 92.14%, respectively. The membrane also demonstrated commendable anti‐fouling properties. Remarkably, even after 48 h of immersion in various organic solvents, the membrane retained its morphology and separation efficiency. Compared to the TFN‐U2 membrane without CNT addition, the enhancement in separation performance was considerably significant. Hence, this membrane has significant potential for application in treatment of wastewater containing organic solvents and is promising in related fields.

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Controllable preparation of novel PPTA/UiO-66-NH2 nanofiltration membrane with nanoscale striped structure for dye wastewater separation

Wang

Lai

et al. 2023

Iran Polym J

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Calcium-alginate/HKUST-1 interlayer-assisted interfacial polymerization reaction enhances performance of solvent-resistant nanofiltration membranes

Cited by 21 publications

References 66 publications

Recent advances in the fabrication of organic solvent nanofiltration membranes using covalent/metal organic frameworks

Recent advances in the fabrication of organic solvent nanofiltration membranes using covalent/metal organic frameworks

Investigation on the enhancement of solvent‐resistant nanofiltration membrane performance utilizing PDA‐UiO‐66@CNT as an interlayer

Controllable preparation of novel PPTA/UiO-66-NH2 nanofiltration membrane with nanoscale striped structure for dye wastewater separation

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