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

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/86721</identifier>
  <creators>
    <creator>
      <creatorName>Idrees, Muhammad</creatorName>
      <givenName>Muhammad</givenName>
      <familyName>Idrees</familyName>
      <affiliation>Univ Fed Santa Catarina, Dept Quim, Natl Inst Sci &amp; Technol Catalysis, BR-88040900 Florianopolis, SC, Brazil</affiliation>
    </creator>
    <creator>
      <creatorName>Silva, Marcelo</creatorName>
      <givenName>Marcelo</givenName>
      <familyName>Silva</familyName>
      <affiliation>Univ Fed Santa Catarina, Dept Quim, Natl Inst Sci &amp; Technol Catalysis, BR-88040900 Florianopolis, SC, Brazil</affiliation>
    </creator>
    <creator>
      <creatorName>Silva, Alessandra F.</creatorName>
      <givenName>Alessandra F.</givenName>
      <familyName>Silva</familyName>
      <affiliation>Univ Fed Santa Catarina, Dept Quim, Natl Inst Sci &amp; Technol Catalysis, BR-88040900 Florianopolis, SC, Brazil</affiliation>
    </creator>
    <creator>
      <creatorName>Zimmermann, Lizandra M.</creatorName>
      <givenName>Lizandra M.</givenName>
      <familyName>Zimmermann</familyName>
      <affiliation>Univ Fed Santa Catarina, Dept Quim, Natl Inst Sci &amp; Technol Catalysis, BR-88040900 Florianopolis, SC, Brazil</affiliation>
    </creator>
    <creator>
      <creatorName>Bruch, Jociane</creatorName>
      <givenName>Jociane</givenName>
      <familyName>Bruch</familyName>
      <affiliation>Univ Fed Santa Catarina, Dept Quim, Natl Inst Sci &amp; Technol Catalysis, BR-88040900 Florianopolis, SC, Brazil</affiliation>
    </creator>
    <creator>
      <creatorName>Mendonca, Caio O.</creatorName>
      <givenName>Caio O.</givenName>
      <familyName>Mendonca</familyName>
      <affiliation>Univ Fed Santa Catarina, Dept Quim, Natl Inst Sci &amp; Technol Catalysis, BR-88040900 Florianopolis, SC, Brazil</affiliation>
    </creator>
    <creator>
      <creatorName>Almerindo, Gizelle I.</creatorName>
      <givenName>Gizelle I.</givenName>
      <familyName>Almerindo</familyName>
      <affiliation>Univ Fed Santa Catarina, Dept Quim, Natl Inst Sci &amp; Technol Catalysis, BR-88040900 Florianopolis, SC, Brazil</affiliation>
    </creator>
    <creator>
      <creatorName>Nome, Rene A.</creatorName>
      <givenName>Rene A.</givenName>
      <familyName>Nome</familyName>
      <affiliation>Univ Estadual Campinas, Inst Chem, BR-13084824 Campinas, SP, Brazil</affiliation>
    </creator>
    <creator>
      <creatorName>Atvars, Teresa D. Z.</creatorName>
      <givenName>Teresa D. Z.</givenName>
      <familyName>Atvars</familyName>
      <affiliation>Univ Estadual Campinas, Inst Chem, BR-13084824 Campinas, SP, Brazil</affiliation>
    </creator>
    <creator>
      <creatorName>Fiedler, Haidi D.</creatorName>
      <givenName>Haidi D.</givenName>
      <familyName>Fiedler</familyName>
      <affiliation>Univ Fed Santa Catarina, Dept Quim, Natl Inst Sci &amp; Technol Catalysis, BR-88040900 Florianopolis, SC, Brazil</affiliation>
    </creator>
    <creator>
      <creatorName>Nome, Faruk</creatorName>
      <givenName>Faruk</givenName>
      <familyName>Nome</familyName>
      <affiliation>Univ Fed Santa Catarina, Dept Quim, Natl Inst Sci &amp; Technol Catalysis, BR-88040900 Florianopolis, SC, Brazil</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Interaction Of Cr3+ With Silica Gel At The Aqueous Interface Using Fluorescence In Sodium Dodecyl Sulfate Micelles And Confocal Fluorescence Microscopy</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2012</publicationYear>
  <dates>
    <date dateType="Issued">2012-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/86721</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1021/jp2089164</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">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 &amp;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.</description>
  </descriptions>
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