1 Ocak 2012 Dergi makalesi Açık Erişim

Idrees, Muhammad; Silva, Marcelo; Silva, Alessandra F.; Zimmermann, Lizandra M.; Bruch, Jociane; Mendonca, Caio O.; Almerindo, Gizelle I.; Nome, Rene A.; Atvars, Teresa D. Z.; Fiedler, Haidi D.; Nome, Faruk

Dublin Core

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  <dc:creator>Idrees, Muhammad</dc:creator>
  <dc:creator>Silva, Marcelo</dc:creator>
  <dc:creator>Silva, Alessandra F.</dc:creator>
  <dc:creator>Zimmermann, Lizandra M.</dc:creator>
  <dc:creator>Bruch, Jociane</dc:creator>
  <dc:creator>Mendonca, Caio O.</dc:creator>
  <dc:creator>Almerindo, Gizelle I.</dc:creator>
  <dc:creator>Nome, Rene A.</dc:creator>
  <dc:creator>Atvars, Teresa D. Z.</dc:creator>
  <dc:creator>Fiedler, Haidi D.</dc:creator>
  <dc:creator>Nome, Faruk</dc:creator>
  <dc:date>2012-01-01</dc:date>
  <dc:description>Chemical composition and species distribution in clay surfaces are key factors which control sorption and desorption processes of Cr3+ between sediment and water. Adsorption of Cr3+ on silica gel has been studied by following the quenching of naphthalene fluorescence in aqueous sodium dodecyl sulfate (SDS) micelles, which concentrate naphthalene and Cr3+ in the micellar surface. Adsorption for pH &lt;= 5 follows a Langmuir model, and experimental data fitting is successfully described by a model based on discrete sites on the surface with variable charge as a function of pH. Probably the mechanism of Cr3+ adsorption at the silica gel surface is predominantly electrostatic, with outer-sphere complexation and ion exchange with adsorbed H+ ions. Confocal laser-scanning fluorescence microscopy measurements reveal the Cr3+ spatial distribution in three dimensions. Specifically, both images and spectra measured with confocal microscopy indicate that Cr3+ is distributed across the entire particle, not just adsorption at the surface.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/86721</dc:identifier>
  <dc:identifier>oai:zenodo.org:86721</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>JOURNAL OF PHYSICAL CHEMISTRY C 116(5) 3517-3523</dc:source>
  <dc:title>Interaction of Cr3+ with Silica Gel at the Aqueous Interface Using Fluorescence in Sodium Dodecyl Sulfate Micelles and Confocal Fluorescence Microscopy</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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