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Adsorption of emerging pollutants on functionalized multiwall carbon nanotubes.
Patiño, Yolanda; Díaz, Eva; Ordóñez, Salvador; Gallegos-Suarez, Esteban; Guerrero-Ruiz, Antonio; Rodríguez-Ramos, Inmaculada.
Affiliation
  • Patiño Y; Department of Chemical and Environmental Engineering, University of Oviedo, Faculty of Chemistry, Julián Clavería s/n, 33006 Oviedo, Spain.
  • Díaz E; Department of Chemical and Environmental Engineering, University of Oviedo, Faculty of Chemistry, Julián Clavería s/n, 33006 Oviedo, Spain.
  • Ordóñez S; Department of Chemical and Environmental Engineering, University of Oviedo, Faculty of Chemistry, Julián Clavería s/n, 33006 Oviedo, Spain. Electronic address: sordonez@uniovi.es.
  • Gallegos-Suarez E; Instituto de Catálisis y Petroleoquímica, CSIC, c/Marie Curie No. 2, Cantoblanco, 28049 Madrid, Spain; Dpto. Química Inorgánica y Técnica, Fac. de Ciencias, UNED, C/ Senda del Rey n° 9, 28040 Madrid, Spain.
  • Guerrero-Ruiz A; Dpto. Química Inorgánica y Técnica, Fac. de Ciencias, UNED, C/ Senda del Rey n° 9, 28040 Madrid, Spain.
  • Rodríguez-Ramos I; Instituto de Catálisis y Petroleoquímica, CSIC, c/Marie Curie No. 2, Cantoblanco, 28049 Madrid, Spain.
Chemosphere ; 136: 174-80, 2015 Oct.
Article in En | MEDLINE | ID: mdl-25989605
ABSTRACT
Adsorption of three representative emerging pollutants - 1,8-dichlorooctane, nalidixic acid and 2-(4-methylphenoxy)ethanol- on different carbon nanotubes was studied in order to determine the influence of the morphological and chemical properties of the materials on their adsorption properties. As adsorbents, multiwall carbon nanotubes (MWCNTs) without functionalization and with oxygen or nitrogen surface groups, as well as carbon nanotubes doped with nitrogen were used. The adsorption was studied in aqueous phase using batch adsorption experiments, results being fitted to both Langmuir and Freundlich models. The adsorption capacity is strongly dependent on both the hydrophobicity of the adsorbates and the morphology of the adsorbents. Thermodynamic parameters were determined observing strong interactions between the aromatic rings of the emerging pollutant and the nitrogen modified adsorbents.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Water Pollutants, Chemical / Nanotubes, Carbon Type of study: Prognostic_studies / Risk_factors_studies Language: En Journal: Chemosphere Year: 2015 Document type: Article Affiliation country: Spain
Fulltext
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Water Pollutants, Chemical / Nanotubes, Carbon Type of study: Prognostic_studies / Risk_factors_studies Language: En Journal: Chemosphere Year: 2015 Document type: Article Affiliation country: Spain