Development and Study of PVA–SiO2/poly(AN-co-MA) Dynamic Nanocomposite Membranes for Ethanol Dehydration via Pervaporation

Burts, Katsiaryna S.; Plisko, Tatiana; Prozorovich, Vladimir; Melnikova, G. B.; Иванец, А. И.; Bildyukevich, A. V.

doi:10.1134/s2517751622020044

Cited by 8 publications

(7 citation statements)

References 29 publications

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“…It was found that the addition of 30-40 wt.% Fe-BTC/ChS weight into the ChS solution resulted in the increase in the thickness of the selective layer of thin film nanocomposite membrane by more than ten times compared to the reference ChS/PAN membrane D0 (Figure 4, Table 2). Increase in the selective layer thickness with addition of filler of dynamic TFN and TFC membranes was observed in previous studies [47,57].…”

Section: Sem Of the Dynamic Composite Membranessupporting

confidence: 72%

“…The pressure from permeate side was lower than 0.01 mmHg. The scheme of the pervaporation set-up is described in [ 47 ]. The feed and permeate compositions were analyzed by Chromatec Crystal 5000.2 gas chromatograph (Chromatec, Republic of Mari El, Yoshkar-Ola, Russia).…”

Section: Methodsmentioning

confidence: 99%

“…One of the other effective methods to improve membrane performance is the modification of polymer matrix with nanoparticles [ 39 ] such as fullerene derivatives [ 40 ], carbon nanotubes (CNTs) [ 41 ], graphene oxides [ 42 ], metals and their oxides [ 43 , 44 ], metal-organic frameworks (MOFs) [ 45 , 46 ], silica [ 47 ], etc. Membranes with MOF as a nano-filler have great prospects due to the design simplicity and the possibility of modifying MOFs, as well as the compatibility between MOF and the polymer matrix [ 48 ].…”

Section: Introductionmentioning

confidence: 99%

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Novel Thin Film Nanocomposite Membranes Based on Chitosan Succinate Modified with Fe-BTC for Enhanced Pervaporation Dehydration of Isopropanol

et al. 2022

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The application of environmentally friendly and energy-efficient membrane processes allows improvement the ecological safety and sustainability of industrial production. However, the effective application of membrane processes requires novel high-performance thin film composite (TFC) membranes based on biopolymers to solve environmental problems. In this work for the first time novel thin film nanocomposite (TFN) membranes based on biopolymer chitosan succinate (ChS) modified with the metal organic framework iron 1,3,5-benzenetricarboxylate (Fe-BTC) were developed for enhanced pervaporation dehydration. The formation of a selective layer of TFN membranes on the porous membrane-support was carried out by two methods—dynamic technique and physical adsorption. The effect of the membrane formation method and Fe-BTC content in ChS layer on the structure and physicochemical properties of TFN membranes was investigated. The developed TFN ChS-based membranes were evaluated in the pervaporation dehydration of isopropanol (12–30 wt.% water). It was found that TFN ChS-Fe-BTC membranes prepared by two methods demonstrated improved permeation flux compared to the reference TFC ChS membrane. The best transport properties in pervaporation dehydration of isopropanol (12–30 wt.% water) were possessed by TFN membranes with 40 wt.% Fe-BTC prepared by dynamic technique (permeation flux 99–499 g m−2 h−1 and 99.99% water in permeate) and TFN membranes with 5 wt.% Fe-BTC developed by physical adsorption (permeation flux 180–701 g m−2 h−1 and 99.99% water in permeate).

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Section: Sem Of the Dynamic Composite Membranessupporting

confidence: 72%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel Thin Film Nanocomposite Membranes Based on Chitosan Succinate Modified with Fe-BTC for Enhanced Pervaporation Dehydration of Isopropanol

et al. 2022

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“…GA and HCl concentrations were 0.06 and 0.5 wt.% respectively. The conditions for membrane preparation were selected in accordance with the previous studies [20,21].…”

Section: Preparation Of Pva-almentioning

confidence: 99%

“…A selective layer of TFC membranes obtained in dynamic mode is formed via filtration of polymer or colloid solution through the porous membranesubstrate due to concentration polarization. Membrane material that is used for selective layer formation affects the selective layer thickness, separation performance as well as membrane mechanical properties [20]. A variety of membrane materials were reported for the formation of the selective layer of TFC dynamic membranes, such as activated carbon, metal-containing compounds, nanoparticles and polymers [21].…”

Section: Introductionmentioning

confidence: 99%

Modification of Thin Film Composite PVA/PAN Membranes for Pervaporation Using Aluminosilicate Nanoparticles

Burts

Plisko

Prozorovich

et al. 2022

IJMS

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The effect of the modification of the polyvinyl alcohol (PVA) selective layer of thin film composite (TFC) membranes by aluminosilicate (Al2O3·SiO2) nanoparticles on the structure and pervaporation performance was studied. For the first time, PVA-Al2O3·SiO2/polyacrylonitrile (PAN) thin film nanocomposite (TFN) membranes for pervaporation separation of ethanol/water mixture were developed via the formation of the selective layer in dynamic mode. Selective layers of PVA/PAN and PVA-Al2O3·SiO2/PAN membranes were formed via filtration of PVA aqueous solutions or PVA-Al2O3·SiO2 aqueous dispersions through the ultrafiltration PAN membrane for 10 min at 0.3 MPa in dead-end mode. Average particle size and zeta potential of aluminosilicate nanoparticles in PVA aqueous solution were analyzed using the dynamic light scattering technique. Structure and surface properties of membranes were studied using scanning electron microscopy (SEM), atomic force microscopy (AFM) and water contact angle measurements. Membrane performance was investigated in pervaporation dehydration of ethanol/water mixtures in the broad concentration range. It was found that flux of TFN membranes decreased with addition of Al2O3·SiO2 nanoparticles into the selective layer due to the increase in selective layer thickness. However, ethanol/water separation factor of TFN membranes was found to be significantly higher compared to the reference TFC membrane in the whole range of studied ethanol/water feed mixtures with different concentrations, which is attributed to the increase in membrane hydrophilicity. It was found that developed PVA-Al2O3·SiO2/PAN TFN membranes were more stable in the dehydration of ethanol in the whole range of investigated concentrations as well as at different temperatures of the feed mixtures (25 °C, 35 °C, 50 °C) compared to the reference membrane which is due to the additional cross-linking of the selective layer by formation hydrogen and donor-acceptor bonds between aluminosilicate nanoparticles and PVA macromolecules.

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Inorganic nanofillers in mix matrix membranes for pervaporation process: A review

Abdali,

Eskandarabadi,

Mahmoudian

et al. 2024

Polymer

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Development and Study of PVA–SiO2/poly(AN-co-MA) Dynamic Nanocomposite Membranes for Ethanol Dehydration via Pervaporation

Cited by 8 publications

References 29 publications

Novel Thin Film Nanocomposite Membranes Based on Chitosan Succinate Modified with Fe-BTC for Enhanced Pervaporation Dehydration of Isopropanol

Novel Thin Film Nanocomposite Membranes Based on Chitosan Succinate Modified with Fe-BTC for Enhanced Pervaporation Dehydration of Isopropanol

Modification of Thin Film Composite PVA/PAN Membranes for Pervaporation Using Aluminosilicate Nanoparticles

Inorganic nanofillers in mix matrix membranes for pervaporation process: A review

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