SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2019, Vol. 27 ›› Issue (7): 1595-1607.DOI: 10.1016/j.cjche.2018.11.002

• Separation Science and Engineering • 上一篇    下一篇

Effect of silver-nanoparticles generated in poly (vinyl alcohol) membranes on ethanol dehydration via pervaporation

Asmaa Selim1,2, Andras Jozsef Toth1, Daniel Fozer1, Eniko Haaz1, Nóra Valentínyi1, Tibor Nagy1, Orsolya Keri3, Lászlo Péter Bakos3, Imre Miklós Szilágyi3, Peter Mizsey1,4   

  1. 1 Department of Chemical and Environmental Process Engineering, Budapest University of Technology and Economics, 1111 Budapest, Hungary;
    2 Chemical Engineering Department, National Research Centre, 12611 Giza, Egypt;
    3 Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, 1111 Budapest, Hungary;
    4 Department of Fine Chemicals and Environmental Technology, University of Miskolc, 3515 Miskolc, Hungary
  • 收稿日期:2018-07-12 出版日期:2019-07-28 发布日期:2019-10-14
  • 通讯作者: Daniel Fozer, Eniko Haaz, Tibor Nagy, Peter Mizsey
  • 基金资助:
    This research was supported by the European Union and the Hungarian State, co-financed by the European Regional Development Fund in the framework of the GINOP-2.3.4-15-2016-00004 project, aimed to promote the cooperation between the higher education and the industry.

Effect of silver-nanoparticles generated in poly (vinyl alcohol) membranes on ethanol dehydration via pervaporation

Asmaa Selim1,2, Andras Jozsef Toth1, Daniel Fozer1, Eniko Haaz1, Nóra Valentínyi1, Tibor Nagy1, Orsolya Keri3, Lászlo Péter Bakos3, Imre Miklós Szilágyi3, Peter Mizsey1,4   

  1. 1 Department of Chemical and Environmental Process Engineering, Budapest University of Technology and Economics, 1111 Budapest, Hungary;
    2 Chemical Engineering Department, National Research Centre, 12611 Giza, Egypt;
    3 Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, 1111 Budapest, Hungary;
    4 Department of Fine Chemicals and Environmental Technology, University of Miskolc, 3515 Miskolc, Hungary
  • Received:2018-07-12 Online:2019-07-28 Published:2019-10-14
  • Contact: Daniel Fozer, Eniko Haaz, Tibor Nagy, Peter Mizsey
  • Supported by:
    This research was supported by the European Union and the Hungarian State, co-financed by the European Regional Development Fund in the framework of the GINOP-2.3.4-15-2016-00004 project, aimed to promote the cooperation between the higher education and the industry.

摘要: Pervaporation is an important membrane separation method of chemical engineering. In this work, silver-nanoparticles-poly (vinyl alcohol) nanocomposite membranes (AgNPs-PVA) are produced for the sake of improving its potentials for pervaporation of ethanol-water mixture so that the usual opposite trend between membrane selectivity and permeation can be reduced. The nanocomposite membranes are fabricated from an aqueous solution of poly (vinyl alcohol) with silver nanoparticles via the in-situ generation technique in the absence of any reducing agent. Successful generation of the nano size silver is measured by the UV-vis spectrum showing a single peak at 419 nm due to the plasmonic effect of silver nanoparticles. Our nanocomposite AgNPs-PVA membranes are characterized using scanning electron microscope (SEM), Fourier-transform infrared (FT-IR) spectroscopy, X-ray diffraction and thermogravimetric analysis (TGA). The pervaporation tests of our new AgNPs-PVA membranes show good results since at a higher temperature and higher ethanol concentration in the feed, the prepared membranes are highly permeable for the water having stable selectivity values and therefore our membranes show better performance compared to that of the other PVA-based nanocomposite membranes.

关键词: Silver nanoparticle, Poly (vinyl alcohol) nanocomposite, membrane, Hydrophilicity, Swelling degree, Pervaporation

Abstract: Pervaporation is an important membrane separation method of chemical engineering. In this work, silver-nanoparticles-poly (vinyl alcohol) nanocomposite membranes (AgNPs-PVA) are produced for the sake of improving its potentials for pervaporation of ethanol-water mixture so that the usual opposite trend between membrane selectivity and permeation can be reduced. The nanocomposite membranes are fabricated from an aqueous solution of poly (vinyl alcohol) with silver nanoparticles via the in-situ generation technique in the absence of any reducing agent. Successful generation of the nano size silver is measured by the UV-vis spectrum showing a single peak at 419 nm due to the plasmonic effect of silver nanoparticles. Our nanocomposite AgNPs-PVA membranes are characterized using scanning electron microscope (SEM), Fourier-transform infrared (FT-IR) spectroscopy, X-ray diffraction and thermogravimetric analysis (TGA). The pervaporation tests of our new AgNPs-PVA membranes show good results since at a higher temperature and higher ethanol concentration in the feed, the prepared membranes are highly permeable for the water having stable selectivity values and therefore our membranes show better performance compared to that of the other PVA-based nanocomposite membranes.

Key words: Silver nanoparticle, Poly (vinyl alcohol) nanocomposite, membrane, Hydrophilicity, Swelling degree, Pervaporation