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Development and Characterization of PVA Membranes Modified with In(BTC) Metal–Organic Framework for Sustainable Pervaporation Separation of Isopropanol/Water

Author

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  • Vladimir Polyakov

    (The Smart Materials Research Institute, Southern Federal University, 105/42 Bolshaya Sadovaya Str., Rostov-on-Don 344090, Russia)

  • Mariia Dmitrenko

    (St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia)

  • Meri Kalmakhelidze

    (The Smart Materials Research Institute, Southern Federal University, 105/42 Bolshaya Sadovaya Str., Rostov-on-Don 344090, Russia)

  • Anna Kuzminova

    (St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia)

  • Roman Dubovenko

    (St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia)

  • Elizaveta Mukhanova

    (The Smart Materials Research Institute, Southern Federal University, 105/42 Bolshaya Sadovaya Str., Rostov-on-Don 344090, Russia)

  • Alexander Soldatov

    (The Smart Materials Research Institute, Southern Federal University, 105/42 Bolshaya Sadovaya Str., Rostov-on-Don 344090, Russia)

  • Anastasia Penkova

    (The Smart Materials Research Institute, Southern Federal University, 105/42 Bolshaya Sadovaya Str., Rostov-on-Don 344090, Russia
    St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia)

Abstract

In this study, pervaporation membranes from synthetic biodegradable polyvinyl alcohol (PVA) with improved properties for isopropanol dehydration were developed through modification with a synthesized In(BTC) metal–organic framework. The improvement in the PVA membrane properties was achieved by varying the In(BTC) concentration (2.5–7 wt.%) in the PVA matrix to allow us to select the optimal concentration for the membrane, which was further chemically cross-linked with maleic acid to increase the resistance, and developing a cross-linked supported membrane from the optimal PVA/5%In(BTC) composite for promising industrial applications. The synthesized In(BTC) and membranes were characterized by using spectroscopic, microscopic, X-ray diffraction, and thermogravimetric analysis methods, as well as swelling degree, contact angle measurements, and the Brunauer–Emmett–Teller adsorption model. The obtained regularities were confirmed by quantum chemical calculations. The cross-linked supported membrane from PVA/5%In(BTC) had optimal transport properties for isopropanol dehydration (20–90 wt.% water), 99.9–89.0 wt.% water in the permeate, and 0.142–0.341 kg/(m 2 h) of permeation flux, the rate of which was four times higher compared to the PVA membrane in separating 20–30 wt.% water/isopropanol.

Suggested Citation

  • Vladimir Polyakov & Mariia Dmitrenko & Meri Kalmakhelidze & Anna Kuzminova & Roman Dubovenko & Elizaveta Mukhanova & Alexander Soldatov & Anastasia Penkova, 2024. "Development and Characterization of PVA Membranes Modified with In(BTC) Metal–Organic Framework for Sustainable Pervaporation Separation of Isopropanol/Water," Sustainability, MDPI, vol. 16(23), pages 1-21, November.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:23:p:10257-:d:1527627
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    References listed on IDEAS

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    1. Mariia Dmitrenko & Ramadan Atta & Andrey Zolotarev & Anna Kuzminova & Sergey Ermakov & Anastasia Penkova, 2022. "Development of Novel Membranes Based on Polyvinyl Alcohol Modified by Pluronic F127 for Pervaporation Dehydration of Isopropanol," Sustainability, MDPI, vol. 14(6), pages 1-23, March.
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