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  • Kovtun, AlessandroIstituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR) (author)

Graphene oxide–polysulfone filters for tap water purification, obtained by fast microwave oven treatment

  • Article/chapterEnglish2019

Publisher, publication year, extent ...

  • 2019
  • Royal Society of Chemistry (RSC),2019
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:84ebbe43-9604-4189-8059-98a41ea6f0ba
  • https://research.chalmers.se/publication/513612URI
  • https://doi.org/10.1039/c9nr06897jDOI
  • https://research.chalmers.se/publication/514278URI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • The availability of clean, pure water is a major challenge for the future of our society. 2-Dimensional nanosheets of GO seem promising as nanoporous adsorbent or filters for water purification; however, their processing in macroscopic filters is challenging, and their cost vs. standard polymer filters is too high. Here, we describe a novel approach to combine graphene oxide (GO) sheets with commercial polysulfone (PSU) membranes for improved removal of organic contaminants from water. The adsorption physics of contaminants on the PSU-GO composite follows Langmuir and Brunauer–Emmett–Teller (BET) models, with partial swelling and intercalation of molecules in between the GO layers. Such a mechanism, well-known in layered clays, has not been reported previously for graphene or GO. Our approach requires minimal amounts of GO, deposited directly on the surface of the polymer, followed by stabilization using microwaves or heat. The purification efficiency of the PSU-GO composites is significantly improved vs. benchmark commercial PSU, as demonstrated by the removal of two model contaminants, rhodamine B and ofloxacin. The excellent stability of the composite is confirmed by extensive (100 hours) filtration tests in commercial water cartridges.

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  • Zambianchi, MassimoIstituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR) (author)
  • Bettini, CristianIstituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR) (author)
  • Liscio, A.Istituto per la Microelettronica e Microsistemi (IMM-CNR),Institute for Microelectronics and Microsystems (IMM-CNR) (author)
  • Gazzano, MassimoIstituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR) (author)
  • Corticelli, FrancoIstituto per la Microelettronica e Microsistemi (IMM-CNR),Institute for Microelectronics and Microsystems (IMM-CNR) (author)
  • Treossi, E.Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR) (author)
  • Navacchia, Maria LuisaIstituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR) (author)
  • Palermo, Vincenzo,1972Chalmers tekniska högskola,Chalmers University of Technology,Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR)(Swepub:cth)palermo (author)
  • Melucci, M.Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR) (author)
  • Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR)Istituto per la Microelettronica e Microsistemi (IMM-CNR) (creator_code:org_t)

Related titles

  • In:Nanoscale: Royal Society of Chemistry (RSC)11:11, s. 22780-227872040-33722040-3364

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