96
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Fabrication and characterization of a polysulfone-graphene oxide nanocomposite membrane for arsenate rejection from water

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Background

          Nowadays, study and application of modified membranes for water treatment have been considered significantly. The aim of this study was to prepare and characterize a polysulfone (PSF)/graphene oxide (GO) nanocomposite membrane and to evaluate for arsenate rejection from water.

          Materials and methods

          The nanocomposite PSF/GO membrane was fabricated using wet phase inversion method. The effect of GO on the synthesized membrane morphology and hydrophilicity was studied by using FE-SEM, AFM, contact angle, zeta potential, porosity and pore size tests. The membrane performance was also evaluated in terms of pure water flux and arsenate rejection.

          Results

          ATR-FTIR confirmed the presence of hydrophilic functional groups on the surface of the prepared GO. FE-SEM micrographs showed that with increasing GO content in the casting solution, the sub-layer structure was enhanced and the drop like voids in the pure PSF membrane changed to macrovoids in PSF/GO membrane along with increase in porosity. AFM images indicated lower roughness of modified membrane compared to pure PSF membrane. Furthermore, contact angle measurement and permeation experiment showed that by increasing GO up to 1 wt%, membrane hydrophilicity and pure water flux were increased. For PSF/GO-1, pure water flux was calculated about 50 L/m 2h at 4 bar. The maximum rejection was obtained by PSF/GO-2 about 83.65 % at 4 bar. Moreover, it was revealed that arsenate rejection depended on solution pH values. It was showed that with increasing pH, the rejection increased.

          Conclusions

          This study showed that application of GO as an additive to PSF casting solution could enhance the membrane hydrophilicity, porosity, flux and arsenate rejection.

          Related collections

          Most cited references42

          • Record: found
          • Abstract: found
          • Book: not found

          Standard Methods for the Examination of Water and Wastewater

          "The Twenty-First Edition has continued the trend to revise methods as issues are identified and contains further refined quality assurance requirements in a number of Parts [sic] and new data on precision and bias. New methods have been added in Parts 2000, 4000, 5000, 6000, 7000, 8000, and 9000, and numerous methods have been revised. Details of these changes appear on the reverse of the title page for each part."--Pref. p. iv.
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Graphene-polymer nanocomposites for structural and functional applications

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Polymer-matrix nanocomposite membranes for water treatment

                Bookmark

                Author and article information

                Contributors
                rezaee.eng@gmail.com
                naserise@tums.ac.ir
                ahmahvi@yahoo.com
                rnabizadeh@tums.ac.ir
                mousavisa@gmail.com
                rashidiam@ripi.ir
                Jafari_a99@yahoo.com
                snazmara@gmail.com
                Journal
                J Environ Health Sci Eng
                J Environ Health Sci Eng
                Journal of Environmental Health Science and Engineering
                BioMed Central (London )
                2052-336X
                22 August 2015
                22 August 2015
                2015
                : 13
                : 61
                Affiliations
                [ ]Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
                [ ]Center for Water Quality Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
                [ ]Center for Solid Waste Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
                [ ]National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran
                [ ]Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
                [ ]Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), Tehran, Iran
                [ ]Department of Environmental Health Engineering, School of Public Health, Lorestan University of Medical Sciences, Khorramabad, Iran
                Article
                217
                10.1186/s40201-015-0217-8
                4546354
                26301096
                195e513c-0460-4594-9bc2-70901691e17c
                © Rezaee et al. 2015

                Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver ( http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

                History
                : 8 February 2015
                : 9 August 2015
                Categories
                Research Article
                Custom metadata
                © The Author(s) 2015

                mixed matrix membrane,polysulfone,graphene oxide,hydrophilicity,arsenate

                Comments

                Comment on this article