Surfactant Enhanced Chromium Removal Using a Silica Gel Column

A simple and rapid method is proposed for the removal of chromium based on its adsorption as anion pair with Cetyl Trimethyl Ammonium Bromide (CTABr) on a silica gel column. The surfactant (CTABr) is bonded to chromate by electrostatic force of attraction and the resulting ion-association complex is...

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Autores:
Tipo de recurso:
article
Fecha de publicación:
2013
Institución:
Pontificia Universidad Javeriana
Repositorio:
Repositorio Universidad Javeriana
Idioma:
eng
OAI Identifier:
oai:repository.javeriana.edu.co:10554/31813
Acceso en línea:
http://revistas.javeriana.edu.co/index.php/scientarium/article/view/4830
http://hdl.handle.net/10554/31813
Palabra clave:
null
Chromate; CTABr; Ion-association; Silica Gel column
null
Rights
openAccess
License
Atribución-NoComercial-SinDerivadas 4.0 Internacional
Description
Summary:A simple and rapid method is proposed for the removal of chromium based on its adsorption as anion pair with Cetyl Trimethyl Ammonium Bromide (CTABr) on a silica gel column. The surfactant (CTABr) is bonded to chromate by electrostatic force of attraction and the resulting ion-association complex is held on a silica gel column. The resulting solution from the column is analyzed for chromium by the standard diphenyl carbazide spectrophotometric procedure. The method has been applied successfully to study the recovery of chromium in various synthetic mixtures.