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@ARTICLE{Tth:19343,
      author       = {Tòth, A. and Törcsik, A. and Tombàcz, E. and Olàh, E.
                      and Heggen, M. and Li, C.L. and Klummpp, E. and Geissler, E.
                      and Làszlò, K.},
      title        = {{I}nteraction of phenol and dopamine with commercial
                      {MWCNT}s},
      journal      = {Journal of colloid and interface science},
      volume       = {364},
      number       = {2},
      issn         = {0021-9797},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {PreJuSER-19343},
      pages        = {469–475},
      year         = {2011},
      note         = {The support of the FP7 Marie Curie IRSES program
                      COMPOSITUM-Hybrid Nanocomposites (PIRSES-GA-2008-230790) is
                      gratefully acknowledged. This work is related to the
                      scientific program "Development of quality-oriented and
                      harmonized R + D + I strategy and functional model at BME"
                      supported by the New Szechenyi Plan (Project ID:
                      TAMOP-4.2.1/B-09/1/KMR-2010-0002). We are grateful for
                      access to the small angle X-ray camera at the French CRC
                      beam line BM2 at the European Synchrotron Radiation
                      Facility, Grenoble. We express our gratitude to G. Bosznai
                      for his contribution to the gas adsorption measurements, to
                      J. Fekete, P. Jenei, and L. Bezur for their help in UPLC and
                      ICP analysis, respectively, and to M. Kallay for the
                      molecular calculations.},
      abstract     = {We report the adsorption of phenol and dopamine probe
                      molecules, from aqueous solution with NaCl, on commercial
                      multiwall carbon nanotubes (MWCNT) and on their carboxylated
                      derivative. The nanotubes were fully characterized by high
                      resolution transmission electron microscopy (HRTEM), small
                      angle X-ray scattering (SAXS), potentiometric titration,
                      electrophoretic mobility, and nitrogen adsorption (77K)
                      measurements. The experimental pollutant isotherms,
                      evaluated using the Langmuir model, showed that only
                      $8-12\%$ and $21-32\%$ of the BET surface area was available
                      for phenol and dopamine, respectively, which is far below
                      the performance of activated carbons. Influence of the pH
                      was more pronounced for the oxidized MWCNT, particularly
                      with dopamine. The strongest interaction and the highest
                      adsorption capacity occurred at pH 3 with both model
                      pollutants on both types of nanotubes. Although the surface
                      area available for adsorption is far lower in MWCNTs than in
                      activated carbons, it is nonetheless substantial. In
                      particular, delayed release of toxic molecules that are
                      either adsorbed on the surface or trapped in the inner bore
                      of such systems could constitute an environmental hazard.
                      The need for further adsorption studies with regard to their
                      environmental aspects is therefore pressing, particularly
                      for MWCNTs in their functionalized state.},
      keywords     = {Adsorption / Dopamine: chemistry / Electrophoretic Mobility
                      Shift Assay / Hydrogen-Ion Concentration / Microscopy,
                      Electron, Transmission / Nanotubes, Carbon / Phenol:
                      chemistry / Scattering, Radiation / Thermodynamics /
                      Nanotubes, Carbon (NLM Chemicals) / Phenol (NLM Chemicals) /
                      J (WoSType)},
      cin          = {PGI-5 / IBG-3},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-5-20110106 / I:(DE-Juel1)IBG-3-20101118},
      pnm          = {Grundlagen für zukünftige Informationstechnologien},
      pid          = {G:(DE-Juel1)FUEK412},
      shelfmark    = {Chemistry, Physical},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:21930280},
      UT           = {WOS:000296223500026},
      doi          = {10.1016/j.jcis.2011.08.044},
      url          = {https://juser.fz-juelich.de/record/19343},
}