Effects of ZnO Nanoparticle on the Gas Separation Performance of Polyurethane Mixed Matrix Membrane

Soltani, Banafsheh; Asghari, Morteza

doi:10.3390/membranes7030043

Cited by 42 publications

(24 citation statements)

References 54 publications

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“…It was found that when ZnO nanomaterials were added into BMIMBF4, the selectivity of CO 2 /N 2 and CO 2 permeability were significantly enhanced. Our group has worked on PEBA composite membranes and also membranes with ZnO nanomaterials as filler in the last two years using both experimental test and simulation software.…”

Section: Introductionmentioning

confidence: 99%

Comparison of ZnO nanofillers of different shapes on physical, thermal and gas transport properties of PEBA membrane: experimental testing and molecular simulation

Asghari

Sheikh

Dehghani

2018

J of Chemical Tech & Biotech

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BACKGROUND PEBA and nano‐ZnO have been discussed for membrane modification and for gas separation in different studies and in mixed matrix membranes (i.e. PEBA/TiO2, PE/ZnO); however, no report has been published on the gas transport properties of ZnO/PEBA hybrid membranes. RESULTS Molecular simulation and experimental approaches were done using PEBA 1657 mixed matrix membranes (MMMs) loaded with ZnO nanorod‐ and nanosphere shaped nanomaterials at 0.5 wt% and 1 wt% loading to investigate the gas separation properties of these MMMs. Structural characterizationwas carried out by FESEM, AFM, BET and FTIR on synthesized membranes, and FFV and WAXD on the simulated membrane cells to study their structural properties. Thermal analysis was carried out by TGA, DMTA and calculation of the glass transition temperature to investigate the thermal properties of the MMMs. The results showed that the addition of ZnO filler significantly improved both the physical and thermal properties of the MMMs based on the characterization tests. The transport properties of the MMMs for three single light gas molecules (CO2, CH4 and N2) were investigated using experimental set‐up testing (permeability and selectivity), and also by molecular dynamic and Monte Carlo approaches in molecular simulation (diffusivity and solubility). The addition of ZnO nanomaterials in both shapes to the polymeric membrane significantly increased the transport properties; for example, CO2 permeability increased from 120 for membrane without nanomaterial to 135 barrer for membrane with 0.5 wt% of nanosphere ZnO and 157 barrer for membrane with 0.5 wt% nanorod ZnO. CONCLUSION The permeability of CH4 and N2 gases into all samples showed no significant change with an increase in pressure or ZnO loading which is likely due to the penetration paths in the membranes. The membrane with 1 wt% ZnO nanorods had the best performance in the Robeson upper bound 2008 diagram. This sample is thus suggested for industrial development. The simulation results showed a similar trend for the membranes and gas molecules, with an error of 25% to 65% from experimental results. We conclude that the PEBA/1 wt% ZnO nanorods membrane could be an ideal solid polymer membrane for gas separation applications. © 2018 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Comparison of ZnO nanofillers of different shapes on physical, thermal and gas transport properties of PEBA membrane: experimental testing and molecular simulation

Asghari

Sheikh

Dehghani

2018

J of Chemical Tech & Biotech

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“…The decrease in selectivity was also reported for UiO66‐PU and MIL‐101‐PU MMMs, which can be ascribed to the low compatibility of the fillers with PU chains . However, in several other publications, it was reported that the addition of inorganic fillers (e.g., metal oxides such as ZnO, silica, alumina, and TiO 2 ) to the PU matrix led to higher selectivities but lower permeabilities . Interestingly, the incorporation of functionalized‐MOFs in PU membranes was found to increase the CO 2 /N 2 selectivity but not to change the CO 2 permeability appreciably .…”

Section: Introductionmentioning

confidence: 77%

“…58 However, in several other publications, it was reported that the addition of inorganic fillers (e.g., metal oxides such as ZnO, silica, alumina, and TiO 2 ) to the PU matrix led to higher selectivities but lower permeabilities. [59][60][61][62] Interestingly, the incorporation of functionalized-MOFs in PU membranes was found to increase the CO 2 /N 2 selectivity but not to change the CO 2 permeability appreciably. 46,63 Incorporation of 20 wt % SAPO-34 into the PU increased the CO 2 /N 2 selectivity by 37% but decreased the CO 2 permeability by about 4%.…”

Section: Introductionmentioning

confidence: 99%

Improved gas transport properties of polyurethane–urea membranes through incorporating a cadmium‐based metal organic framework

Sadeghi

Isfahani

Shamsabadi

et al. 2019

J of Applied Polymer Sci

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The increasing need for more efficient separation processes has motivated the development of polymer membranes that can provide fast and selective transport. In this work, cadmium‐based metal–organic framework (MOF) nanoparticles and a polyurethane–urea (PUU) elastomer were synthesized. New mixed‐matrix membranes (MMMs) were then fabricated from the nanoparticles and the PUU. SEM images verified that embedding the nanoparticles changes the morphology of the PUU and the nanoparticles disperse well in the PUU due to satisfactory compatibility of the polymer and nanoparticles. Fourier transform infrared spectroscopy and X‐ray diffraction analysis confirmed the dispersion of the nanoparticles in the soft segment of the PUU. With increased temperature, gas permeabilities of the MMMs improved but their sieving ability deteriorated. An MMM incorporating 2.5 wt % of the MOF showed a CO2 permeability of ~140 barrer and a CO2/N2 selectivity of ~30, which are 89 and 38% higher than those of the pristine membrane. Gas permeation tests showed that the higher CO2/N2 selectivity of the MMMs was due to improved solubility selectivity and the higher CO2 permeability was a result of improved CO2 diffusivity and solubility coefficients. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 137, 48704.

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“…In the last two decades, a significant property improvement has been found by using the above metal oxides nanoparticles in the PU matrix. In particular, ZnO nanoparticle enhances the material properties and is being used in many different areas [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 ].…”

Section: Introductionmentioning

confidence: 99%

Polyurethane/Zinc Oxide (PU/ZnO) Composite—Synthesis, Protective Property and Application

Rahman

2020

Polymers

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A polyurethane (PU) is a multifunctional polymer prepared by using more than two types of monomers. The unique properties of PU come from monomers, thus broadening the applicability of PU in many different sectors. The properties can be further improved by using many nanoparticles. Different metal oxides as nanoparticles are also widely used in PU materials. ZnO is a widely used inorganic metal oxide nanoparticle for improving polymer properties. In this review article, the techniques to prepare a PU/ZnO composite are reviewed; the key protective properties, such as adhesive strength and self-healing, and applications of PU/ZnO composites are also highlighted. This review also highlights the PU/ZnO composite’s current challenges and future prospects, which will help to broaden the composite practical application by preparing environmentally friendly composites.

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Effects of ZnO Nanoparticle on the Gas Separation Performance of Polyurethane Mixed Matrix Membrane

Cited by 42 publications

References 54 publications

Comparison of ZnO nanofillers of different shapes on physical, thermal and gas transport properties of PEBA membrane: experimental testing and molecular simulation

Comparison of ZnO nanofillers of different shapes on physical, thermal and gas transport properties of PEBA membrane: experimental testing and molecular simulation

Improved gas transport properties of polyurethane–urea membranes through incorporating a cadmium‐based metal organic framework

Polyurethane/Zinc Oxide (PU/ZnO) Composite—Synthesis, Protective Property and Application

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