Desalination characteristics of TFN-RO membrane incorporated with ZIF-8 nanoparticles

Aljundi, Isam H.

doi:10.1016/j.desal.2017.06.020

Cited by 113 publications

(32 citation statements)

References 50 publications

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“…The decrease of rejection properties in TFN membranes is a general phenomenon that was reported in other literature. [38][39][40] It should be noted that all the prepared membranes exhibited the rejection property order of MgSO 4 > Na 2 SO 4 > NaCl, which could be explained by the rejection mechanism of nanoltration membranes. It was known that the membrane rejection property was based on both size sieving effect and Donnan effect.…”

Section: Nanoltration Performance Of the Prepared Membranesmentioning

confidence: 87%

Enhanced dispersibility of metal–organic frameworks (MOFs) in the organic phaseviasurface modification for TFN nanofiltration membrane preparation

et al. 2020

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Section: Nanoltration Performance Of the Prepared Membranesmentioning

confidence: 87%

Enhanced dispersibility of metal–organic frameworks (MOFs) in the organic phaseviasurface modification for TFN nanofiltration membrane preparation

et al. 2020

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“…The introduction of P-PAL gives rise to higher hydrophilicity which results to a reduction in the interfacial energy between the surface of the modified membrane and water, hence facilitating the water uptake. 64 The observed increase in the water uptake of PSF/P-PAL compared to that of PSF substrate is due to the hydrophilic nature of the functional groups contained in the introduced P-PAL particles. Palani et al revealed that the introduction wileyonlinelibrary.com/jctb of montmorillonite in the polymer mixture could improve the water uptake of membranes.…”

Section: Wileyonlinelibrarycom/jctbmentioning

confidence: 95%

Facile purification of palygorskite and its effect on the performance of reverse osmosis thin film nanocomposite membrane

Mamah

Goh

Ismail

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND: Palygorskite (PAL) is a naturally occurring nanoclay characterized by a distinctive tubular structure and fibrous morphology, exhibiting chemical and thermal stability as well as large specific surface area. The tubular structure of PAL promotes the selective transportation of water molecules, hence can serve as an interesting candidate for liquid separation. In this work, a membrane substrate was fabricated using the purified PAL to enhance the flux of the thin film composite reverse osmosis. Purification of PAL enhances its interaction with polymer chain to further promote nanofiller dispersion and improves the hydrophilic properties. The water flux as well as salt rejection of the developed membranes was examined using a dead end filtration system. The membrane performance with respect to pure water flux and salt rejection was evaluated using reverse osmosis water and 2000 ppm sodium chloride solution at 15 bar operation pressure. RESULTS:The physico-chemical characterization evidenced the role of purified PAL (P-PAL) in increasing the number of pores and promoting the formation of finger like structure in the substrate layer. The water flux of thin film nanocomposite (TFN) containing P-PAL exhibited 114.6% and 43.1% improvement compared to that of neat and TFN membrane incorporated with pristine PAL respectively without compromising the salt rejection performance.CONCLUSIONS: This study highlights the purification of palygorskite and its effects on membrane water permeability in the field of water desalination.

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“…Zhang et al reported that the lower BSA adsorption of AgNPs-modified membranes is due to the smaller electrostatic interaction [53]. Moreover, previous researches demonstrated that ZIFs-modified membranes (PES/ZIF-L membranes and PA/ZIF-8 membranes) improved the fouling resistance, which was due to the combined effect of the electrostatic repulsion, hydrophilicity, and surface roughness [54,55]. In this study, in the case where the hydrophilicity of the AgNPs@ZIF-8 hybrid crystal modified membranes was lower than that of the AgNPsand ZIF-8 hybrid crystal-modified membranes, the former adsorbed less BSA than the latter two, which might be the result of electrostatic interaction and hydrophilicity.…”

Section: Static Protein Adhesionmentioning

confidence: 99%

AgNPs@ZIF‐8 Hybrid Material‐Modified Polyethersulfone Microfiltration Membranes for Antibiofouling Property and Permeability Improvement

et al. 2020

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Membrane fouling is a major hindrance to the effective application of polyethersulfone (PES) membranes. Synthetic silver nanoparticles @ zeolitic imidazolate framework‐8 (AgNPs@ZIF‐8) hybrid crystals were used to modify the PES microfiltration membranes for mitigating membrane fouling and better water permeability. The surface modification of AgNPs@ZIF‐8 hybrid crystals improved the antifouling property of the membranes. The number of live bacteria in the bacteria suspension was over 90 % less than that of control membranes. Furthermore, after surface modification, the membrane permeability was enhanced, which was due to increased surface hydrophilization of the membranes which could partly explain the improved antifouling property. The results demonstrate that the use of AgNPs@ZIF‐8 hybrid crystals is a feasible and attractive approach for the development of antifouling membranes.

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Desalination characteristics of TFN-RO membrane incorporated with ZIF-8 nanoparticles

Cited by 113 publications

References 50 publications

Enhanced dispersibility of metal–organic frameworks (MOFs) in the organic phaseviasurface modification for TFN nanofiltration membrane preparation

Enhanced dispersibility of metal–organic frameworks (MOFs) in the organic phaseviasurface modification for TFN nanofiltration membrane preparation

Facile purification of palygorskite and its effect on the performance of reverse osmosis thin film nanocomposite membrane

AgNPs@ZIF‐8 Hybrid Material‐Modified Polyethersulfone Microfiltration Membranes for Antibiofouling Property and Permeability Improvement

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