Ir al contenido (pulsa Retorno)

Universitat Politècnica de Catalunya

    • Català
    • Castellano
    • English
    • LoginRegisterLog in (no UPC users)
  • mailContact Us
  • world English 
    • Català
    • Castellano
    • English
  • userLogin   
      LoginRegisterLog in (no UPC users)

UPCommons. Global access to UPC knowledge

56.719 UPC E-Prints
You are here:
View Item 
  •   DSpace Home
  • E-prints
  • Grups de recerca
  • R2EM - Resource Recovery and Environmental Management
  • Articles de revista
  • View Item
  •   DSpace Home
  • E-prints
  • Grups de recerca
  • R2EM - Resource Recovery and Environmental Management
  • Articles de revista
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Removal of zinc from aqueous solutions using lamellar double hydroxide materials impregnated with Cyanex 272: Characterization and sorption studies

Thumbnail
View/Open
Article (2,533Mb)
Share:
 
 
10.3390/molecules25061263
 
  View Usage Statistics
Cita com:
hdl:2117/191342

Show full item record
Boudaoud, Nacera
Miloudi, Hafida
Bouazza, Djamila
Adjdir, Mehdi
Tayeb, Abdelkader
Fortuny Sanromá, AgustínMés informacióMés informacióMés informació
Demey Cedeño, Hary
Sastre Requena, Ana MaríaMés informacióMés informacióMés informació
Document typeArticle
Defense date2020-03-11
Rights accessOpen Access
Attribution 4.0 International
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution 4.0 International
ProjectESTRATEGIAS DE RECICLADO DE RESIDUOS QUE CONTIENEN TIERRAS RARAS: MEMBRANAS LIQUIDAS Y PROCESOS DE SORCION MEDIANTE NANOCOMPOSITES MAGNETICOS PARA SU SEPARACION Y RECUPERACION (AEI-CTM2017-83581-R)
Abstract
Removal of heavy metals from wastewater is mandatory in order to avoid water pollution of natural reservoirs. In the present study, layered double hydroxide (LDH) materials were evaluated for removal of zinc from aqueous solutions. Materials thus prepared were impregnated with cyanex 272 using the dry method. These materials were characterized through X-ray diffraction (XRD), Fourier transform infrared (FTIR), and thermal analysis. Batch shaking adsorption experiments were performed in order to examine contact time and extraction capacity in the removal process. Results showed that the equilibrium time of Zn (II) extraction is about 4 h for Mg2Al-CO3 and Mg2Al-CO3-cyanex 272, 6 h for Zn2Al-CO3, and 24 h for Zn2Al-CO3-cyanex 272. The experimental equilibrium data were tested for Langmuir, and Freundlich isotherm models. Correlation coefficients indicate that experimental results are in a good agreement with Langmuir’s model for zinc ions. Pseudo-first, second-order, Elovich, and intraparticular kinetic models were used to describe kinetic data. It was determined that removal of Zn2+ was well-fitted by a second-order reaction kinetic. A maximum capacity of 280 mg/g was obtained by Zn2Al-CO3-cyanex 272.
CitationBoudaoud, N. [et al.]. Removal of zinc from aqueous solutions using lamellar double hydroxide materials impregnated with Cyanex 272: Characterization and sorption studies. "Molecules", 11 Març 2020, vol. 25, núm. 6, p. 1263:1-1263:17. 
URIhttp://hdl.handle.net/2117/191342
DOI10.3390/molecules25061263
ISSN1420-3049
Publisher versionhttps://www.mdpi.com/1420-3049/25/6/1263
Other identifiershttps://europepmc.org/article/med/32168823
Collections
  • R2EM - Resource Recovery and Environmental Management - Articles de revista [135]
  • Departament d'Enginyeria Química - Articles de revista [1.908]
Share:
 
  View Usage Statistics

Show full item record

FilesDescriptionSizeFormatView
molecules-25-01263-v2.pdfArticle2,533MbPDFView/Open

Browse

This CollectionBy Issue DateAuthorsOther contributionsTitlesSubjectsThis repositoryCommunities & CollectionsBy Issue DateAuthorsOther contributionsTitlesSubjects

© UPC Obrir en finestra nova . Servei de Biblioteques, Publicacions i Arxius

info.biblioteques@upc.edu

  • About This Repository
  • Contact Us
  • Send Feedback
  • Inici de la pàgina