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Synthesis and characterization of a new magnetic material join to graphene oxide as sorbent

Author

Listed:
  • Pablo Montoro Leal

    (University of Malaga)

  • Juan Carlos García Mesa

    (University of Malaga)

  • María Mar López Guerrero

    (University of Málaga)

  • Elisa Isabel Vereda Alonso

    (University of Malaga)

Abstract

The synthesis and characterization of new adsorbents is addressed in this work. This material is based on the coupling of magnetic nanoparticles and graphene oxide (MNPs@GO). Graphene oxide (GO) presents a high surface area to volume ratio, and high rate of diffusion in water. However it is tedious and difficult to separate GO from the aqueous solution. The coupling with magnetic nanoparticles provides an easy magnetic separation. Thus, MNPs@GO has demonstrated to be an excellent adsorbent material towards to organic compounds but not to ionic metals. For this reason, a chelating group is attached to the material surface: [1,5-bis(2-pyridyl)-3-methylene] thiocarbonohydrazide (DPTH) in order to increase the selectivity for metal ions. To establish which is the best route of synthesis, two different strategies were designed (method 1 and method 2). The two new materials obtained, called DPTH(1) and DPTH(2), were characterized and their properties as extractants were studied. Several analytical techniques were used to characterize them; TEM, XPS, CNHS elemental analysis and FT IR. To conclude, the DPTH(2) showed better properties as extractant, even at trace levels.

Suggested Citation

  • Pablo Montoro Leal & Juan Carlos García Mesa & María Mar López Guerrero & Elisa Isabel Vereda Alonso, 2019. "Synthesis and characterization of a new magnetic material join to graphene oxide as sorbent," Proceedings of International Academic Conferences 9811007, International Institute of Social and Economic Sciences.
    • Handle: RePEc:sek:iacpro:9811007
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    File URL: https://iises.net/proceedings/iises-international-academic-conference-dubrovnik/table-of-content/detail?cid=98&iid=031&rid=11007
    File Function: First version, 2019
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    More about this item

    Keywords

    Solid-phase extraction; magnetic nanoparticles; graphene oxide; chelating functional groups; TEM; XPS; IR;
    All these keywords.

    JEL classification:

    • Q53 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Air Pollution; Water Pollution; Noise; Hazardous Waste; Solid Waste; Recycling
    • L65 - Industrial Organization - - Industry Studies: Manufacturing - - - Chemicals; Rubber; Drugs; Biotechnology; Plastics
    • Q56 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environment and Development; Environment and Trade; Sustainability; Environmental Accounts and Accounting; Environmental Equity; Population Growth

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