Experimental and theoretical study of Co sorption in clay montmorillonites

Montmorillonite (MMT) clays are 2:1 layered structures which in natural state may allocate different hydrated cations such as M-nH<sub>2</sub>O (M= Na, Ca, Fe, etc) in its interlayer space. Depending on the capability for ion sorption, these materials are interesting for environmental re...

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Autores principales: Gil Rebaza, Arles Víctor, Montes, María Luciana, Taylor, Marcela Andrea, Errico, Leonardo Antonio, Alonso, Roberto Emilio
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2018
Materias:
Ciencias Exactas
Física
Ingeniería
study of Co sorption
clay montmorillonites
hyperfine parameters
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/104633
http://hdl.handle.net/11336/95753
https://iopscience.iop.org/article/10.1088/2053-1591/aab4dd
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SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-104633
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Ingeniería
study of Co sorption
clay montmorillonites
hyperfine parameters
spellingShingle Ciencias Exactas
Física
Ingeniería
study of Co sorption
clay montmorillonites
hyperfine parameters
Gil Rebaza, Arles Víctor
Montes, María Luciana
Taylor, Marcela Andrea
Errico, Leonardo Antonio
Alonso, Roberto Emilio
Experimental and theoretical study of Co sorption in clay montmorillonites
topic_facet Ciencias Exactas
Física
Ingeniería
study of Co sorption
clay montmorillonites
hyperfine parameters
description Montmorillonite (MMT) clays are 2:1 layered structures which in natural state may allocate different hydrated cations such as M-nH<sub>2</sub>O (M= Na, Ca, Fe, etc) in its interlayer space. Depending on the capability for ion sorption, these materials are interesting for environmental remediation. In this work we experimentally study the Co sorption in a natural Na-MMT using UV-visible spectrometry and XRD on semi-oriented samples, and then analyze the sorption ability of this clay by means of <i>ab initio</i> calculation performed on pristine MMT. The structural properties of Na-MMT and Co-adsorbed MMT, and the hyperfine parameters at different atomic sites were analyzed and compared with the experimental ones for the first, and for the case of the hyperfine parameters, presented for the first time for the last. The theoretical predictions based on total energy considerations confirm that Co incorporation replacing Na is energetically favorable. Also, the basal spacing d<sub<001</sub> experimentally obtained is well reproduced.
format Articulo
Preprint
author Gil Rebaza, Arles Víctor
Montes, María Luciana
Taylor, Marcela Andrea
Errico, Leonardo Antonio
Alonso, Roberto Emilio
author_facet Gil Rebaza, Arles Víctor
Montes, María Luciana
Taylor, Marcela Andrea
Errico, Leonardo Antonio
Alonso, Roberto Emilio
author_sort Gil Rebaza, Arles Víctor
title Experimental and theoretical study of Co sorption in clay montmorillonites
title_short Experimental and theoretical study of Co sorption in clay montmorillonites
title_full Experimental and theoretical study of Co sorption in clay montmorillonites
title_fullStr Experimental and theoretical study of Co sorption in clay montmorillonites
title_full_unstemmed Experimental and theoretical study of Co sorption in clay montmorillonites
title_sort experimental and theoretical study of co sorption in clay montmorillonites
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/104633
http://hdl.handle.net/11336/95753
https://iopscience.iop.org/article/10.1088/2053-1591/aab4dd
work_keys_str_mv AT gilrebazaarlesvictor experimentalandtheoreticalstudyofcosorptioninclaymontmorillonites
AT montesmarialuciana experimentalandtheoreticalstudyofcosorptioninclaymontmorillonites
AT taylormarcelaandrea experimentalandtheoreticalstudyofcosorptioninclaymontmorillonites
AT erricoleonardoantonio experimentalandtheoreticalstudyofcosorptioninclaymontmorillonites
AT alonsorobertoemilio experimentalandtheoreticalstudyofcosorptioninclaymontmorillonites
bdutipo_str Repositorios
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