Sonication-enhanced in situ assembly of organic/inorganic hybrid membranes: Evolution of nanoparticle distribution and pervaporation performance

Yan, Hao; Li, Jie; Fan, Hongwei; Ji, Shulan; Zhang, Guojun; Zhang, Zhongguo

doi:10.1016/j.memsci.2015.01.047

Cited by 66 publications

(27 citation statements)

References 48 publications

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“…%) 6 40 15 720 [ 96 ] PDMS ZIF-8 (5 wt. %) 5 60 9.9 1229 [ 93 ] PDMS/modified MOFs PDMS/PVDF Dodecylamine-modified ZIF-90 (2.5 wt. %) 5 60 15.1 99.5 [ 252 ] PDMS/PSF TMDS-modified MCM-41@ZIF-8 (5 wt.…”

Section: Membrane Materials For Ethanol Recoveryunclassified

Membranes for bioethanol production by pervaporation

Peng

Lan

Liang

et al. 2021

Biotechnol Biofuels

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Background Bioethanol as a renewable energy resource plays an important role in alleviating energy crisis and environmental protection. Pervaporation has achieved increasing attention because of its potential to be a useful way to separate ethanol from the biomass fermentation process. Results This overview of ethanol separation via pervaporation primarily concentrates on transport mechanisms, fabrication methods, and membrane materials. The research and development of polymeric, inorganic, and mixed matrix membranes are reviewed from the perspective of membrane materials as well as modification methods. The recovery performance of the existing pervaporation membranes for ethanol solutions is compared, and the approaches to further improve the pervaporation performance are also discussed. Conclusions Overall, exploring the possibility and limitation of the separation performance of PV membranes for ethanol extraction is a long-standing topic. Collectively, the quest is to break the trade-off between membrane permeability and selectivity. Based on the facilitated transport mechanism, further exploration of ethanol-selective membranes may focus on constructing a well-designed microstructure, providing active sites for facilitating the fast transport of ethanol molecules, hence achieving both high selectivity and permeability simultaneously. Finally, it is expected that more and more successful research could be realized into commercial products and this separation process will be deployed in industrial practices in the near future. Graphical abstract

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Section: Membrane Materials For Ethanol Recoveryunclassified

Membranes for bioethanol production by pervaporation

Peng

Lan

Liang

et al. 2021

Biotechnol Biofuels

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“…Recently, embedment of hydrophobic particle fillers such as silicalite, zeolite, silica, carbonaceous frameworks and metal–organic frameworks in polymer matrices has been shown to be an economical method for improving the quality of pervaporation membranes in water–ethanol separation. In this case, mixed‐matrix membranes (MMMs), the incorporation of mineral fillers in the polymer matrix, showed increased flux and selectivity and also improved mechanical stability .…”

Section: Introductionmentioning

confidence: 99%

“…However, due to weak intermolecular forces between the polymer chains, PDMS has relatively poor mechanical properties, particularly low tensile strength, which can be basically improved by incorporation of mineral fillers. 23 Recently, embedment of hydrophobic particle fillers such as silicalite, 24 zeolite, 25 silica, 26 carbonaceous frameworks 27 and metal-organic frameworks 28 in polymer matrices has been shown to be an economical method for improving the quality of pervaporation membranes in water-ethanol separation. In this case, mixed-matrix membranes (MMMs), the incorporation of mineral fillers in the polymer matrix, showed increased flux and selectivity and also improved mechanical stability.…”

Section: Introductionmentioning

confidence: 99%

Highly selective carbon nanotube‐coupled graphene oxide‐incorporated polydimethylsiloxane membrane for pervaporative membrane bioreactor ethanol production

Amrei

Asghari

Esfahanian

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND In this work, a pervaporation membrane bioreactor (PVMBR) with the novel ethanol permselective membrane was used to achieve ethanol production with high yield. For this purpose, ethanol produced by Saccharomyces cerevisiae from glucose and pervaporation was performed via dense hydrophobic polydimethylsiloxane (PDMS) having carbon nanotube‐graphene oxide (CNT‐GO) mixed matrix membrane. Different percentages of CNT‐GO (0, 0.25, 0.5, 0.75, and 1) were loaded in polymer matrix. Synthesized membranes were analyzed using FESEM, AFM, FTIR and XRD. RESULTS The bonding of groups in CNT‐GO, that was synthesized in this work, and membranes was characterized and confirmed using FTIR test. Considering the existence of 0.75 wt% of CNT‐GO in PDMS showed the highest ethanol selectivity of 22.5 in synthetic ethanol‐water solution, this incorporation was selected to use in PVMBR. The high ethanol selectivity was proved using XRD patterns. Also, FESEM indicated the optimum dispersion of nanoparticles at 0.75% of loading and AFM proofed the optimum surface roughness at this percentage. CONCLUSIONS The results showed that maximum ethanol production in PVMBR was achieved after 44 h with productivity of 0.5g.l−1.h−1 in feed side and 9.89 g.l−1.h−1 in permeate side. In fact, PVMBR enhanced the ethanol concentration up to 26 times. © 2020 Society of Chemical Industry

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“…But the poor strength and insatiability of hybrid membrane after long time operation that limited its practical application . Yan et al have successfully grafted the ZIF‐8 (Zeolitic imidazolate framework‐8) onto PDMS membrane by sonication, but the separation factor for the pervaporation of 5% ethanol/water mixture was only low (12.5).…”

Section: Introductionmentioning

confidence: 99%

Three‐component mixed matrix organic/inorganic hybrid membranes for pervaporation separation of ethanol–water mixture

Zhu

Liu

et al. 2017

J of Applied Polymer Sci

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Mixed matrix membranes (MMMs) were made by incorporating vinyltrimethoxysilane (VTMS)‐modified Silicalite‐1 zeolite nanoparticles (V‐Silicalite‐1 NPs) into fluorinated polybenzoxazine (F‐PBZ) modified polydimethylsiloxane (PDMS) polymer through in situ polymerization method. The membrane morphology, surface wettability, and pervaporation performance were systematically investigated. The addition of F‐PBZ into PDMS membranes resulted in substantially improved flux and marginal increase of separation factor, which is the result of higher free volume and higher hydrophobicity caused by the addition of F‐PBZ. The modification of Silicalite‐1 NPs improved the interfacial contact between zeolite crystals and polymer phase. The incorporation of hydrophobic V‐Silicalite‐1 zeolite NPs into the PDMS membranes led to much higher separation factor but reduced flux, which is the result of increased hydrophobicity and reduced free volume. The three‐component MMMs with V‐Silicalite‐1 zeolite NPs in the F‐PBZ fluorinated PDMS exhibited separation factor of 28.7 and flux of 0.207 kg m−2 h−1 for 5 wt % ethanol aqueous solution at 50 °C, while the pure PDMS membranes only had separation factor of 4.8 and flux of 0.088 kg m−2 h−1. The substantial increase of both flux and separation factor were attributed to the higher hydrophobicity and free volume caused by the incorporation of both hydrophobic zeolite crystals and F‐PBZ polymer into the PDMS membranes. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44753.

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Sonication-enhanced in situ assembly of organic/inorganic hybrid membranes: Evolution of nanoparticle distribution and pervaporation performance

Cited by 66 publications

References 48 publications

Membranes for bioethanol production by pervaporation

Membranes for bioethanol production by pervaporation

Highly selective carbon nanotube‐coupled graphene oxide‐incorporated polydimethylsiloxane membrane for pervaporative membrane bioreactor ethanol production

Three‐component mixed matrix organic/inorganic hybrid membranes for pervaporation separation of ethanol–water mixture

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