Performance and antifouling behavior of thin-film nanocomposite nanofiltration membranes with embedded silica spheres

Ang, Micah Belle Marie Yap; Pereira, John Marseline; Trilles, Calvin A.; Aquino, Ruth R.; Huang, Shu-Hsien; Lee, Kueir‐Rarn; Lai, Juin‐Yih

doi:10.1016/j.seppur.2018.08.037

Cited by 72 publications

(24 citation statements)

References 44 publications

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“…Many nano species have been used in the preparation of membranes or processes involving membranes and their various applications, as follows: nano species derived from carbon (carbon nanotubes, fullerenes, graphene) [ 2 , 3 ]; metallic nanoparticles (silver, gold, copper) [ 4 , 5 ]; oxide nanoparticles (silica, titanium dioxide, iron oxides, copper oxide, zinc oxide, aluminum oxide) [ 6 , 7 , 8 , 9 ]; polymeric nanoparticles (ion exchangers, reactive and complexed polymers) [ 10 , 11 ]; proteins, and enzymes [ 12 ]. Most of the time, the effect of nano species used in membranes and membrane processes was defined, and their preparation or cost did not condition any application.…”

Section: Introductionmentioning

confidence: 99%

Accessible Silver-Iron Oxide Nanoparticles as a Nanomaterial for Supported Liquid Membranes

et al. 2021

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The present study introduces the process performances of nitrophenols pertraction using new liquid supported membranes under the action of a magnetic field. The membrane system is based on the dispersion of silver–iron oxide nanoparticles in n-alcohols supported on hollow microporous polypropylene fibers. The iron oxide–silver nanoparticles are obtained directly through cyclic voltammetry electrolysis run in the presence of soluble silver complexes ([AgCl2]−; [Ag(S2O3)2]3−; [Ag(NH3)2]+) and using pure iron electrodes. The nanostructured particles are characterized morphologically and structurally by scanning electron microscopy (SEM and HFSEM), EDAX, XRD, and thermal analysis (TG, DSC). The performances of the nitrophenols permeation process are investigated in a variable magnetic field. These studies show that the flux and extraction efficiency have the highest values for the membrane system embedding iron oxide–silver nanoparticles obtained electrochemically in the presence of [Ag(NH3)2]+ electrolyte. It is demonstrated that the total flow of nitrophenols through the new membrane system depends on diffusion, convection, and silver-assisted transport.

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Section: Introductionmentioning

confidence: 99%

Accessible Silver-Iron Oxide Nanoparticles as a Nanomaterial for Supported Liquid Membranes

et al. 2021

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“…All of these advances in membrane technology have allowed the approach of more and more specific applications, either in terms of the separate chemical species or in terms of the matrix from which these chemical species are separated [31][32][33][34]. Lately, even the domestic applications of membranes have multiplied, some examples worth mentioning are the recycling of water in washing machines and car washes, the recycling of food and car manufacturing industry oils, air filtration and/or its concentrations of oxygen or nitrogen, the recovery of vapors from gas stations, or at correction of the unpleasant smell of the premises [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improving the Performance of Composite Hollow Fiber Membranes with Magnetic Field Generated Convection Application on pH Correction

et al. 2021

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The membranes and membrane processes have succeeded in the transition from major technological and biomedical applications to domestic applications: water recycling in washing machines, recycling of used cooking oil, recovery of gasoline vapors in the pumping stations or enrichment of air with oxygen. In this paper, the neutralization of condensation water and the retention of aluminum from thermal power plants is studied using ethylene propylene diene monomer sulfonated (EPDM-S) membranes containing magnetic particles impregnated in a microporous propylene hollow fiber (I-PPM) matrix. The obtained membranes were characterized from the morphological and structural points of view, using scanning electron microscopy (SEM), high resolution SEM (HR-SEM), energy dispersive spectroscopy analysis (EDAX) and thermal gravimetric analyzer. The process performances (flow, selectivity) were studied using a variable magnetic field generated by electric coils. The results show the possibility of correcting the pH and removing aluminum ions from the condensation water of heating plants, during a winter period, without the intervention of any operator for the maintenance of the process. The pH was raised from an acidic one (2–4), to a slightly basic one (8–8.5), and the concentration of aluminum ions was lowered to the level allowed for discharge. Magnetic convection of the permeation module improves the pH correction process, but especially prevents the deposition of aluminum hydroxide on hollow fibers membranes.

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“…Larger nanofillers might not be beneficial in the modification of membranes, because the oversized nanofillers are likely to cause interfacial defects and leaching risk under the dynamic filtration process [ 28 ]. In addition, it has been proven that the internal cavity of nanofillers is conducive to supplying more free volumes to the PA layer, which can reduce the transport resistance of the water molecules and enhance membrane permeability [ 29 , 30 , 31 ]. For these reasons, organic nanofillers with good compatibility, suitable effective size and internal cavity are highly desired for the development of TFN membranes.…”

Section: Introductionmentioning

confidence: 99%

Organic Nanobowls Modified Thin Film Composite Membrane for Enhanced Purification Performance toward Different Water Resources

Wang

et al. 2021

Membranes

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The structure and composition of nanofillers have a significant influence on polyamide nanofiltration (NF) membranes. In this work, an asymmetric organic nanobowl containing a concave cavity was synthesized and incorporated into a polyamide layer to prepare thin film nanocomposite (TFN) membranes via an interfacial polymerization process. Benefiting from the hydrophilicity, hollow cavity and charge property of the compatible organic nanobowls, the separation performance of the developed TFN membrane was significantly improved. The corresponding water fluxes increased to 119.44 ± 5.56, 141.82 ± 3.24 and 130.27 ± 2.05 L/(m2·h) toward Na2SO4, MgCl2 and NaCl solutions, respectively, with higher rejections, compared with the control thin film composite (TFC) and commercial (CM) membranes. Besides this, the modified TFN membrane presented a satisfying purification performance toward tap water, municipal effluent and heavy metal wastewater. More importantly, a better antifouling property of the TFN membrane than TFC and CM membranes was achieved with the assistance of organic nanobowls. These results indicate that the separation performance of the TFN membrane can be elevated by the incorporation of organic nanobowls.

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Performance and antifouling behavior of thin-film nanocomposite nanofiltration membranes with embedded silica spheres

Cited by 72 publications

References 44 publications

Accessible Silver-Iron Oxide Nanoparticles as a Nanomaterial for Supported Liquid Membranes

Accessible Silver-Iron Oxide Nanoparticles as a Nanomaterial for Supported Liquid Membranes

Improving the Performance of Composite Hollow Fiber Membranes with Magnetic Field Generated Convection Application on pH Correction

Organic Nanobowls Modified Thin Film Composite Membrane for Enhanced Purification Performance toward Different Water Resources

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