Zn-Ti-Al layered double hydroxides synthesized from aluminum saline slag wastes as efficient drug adsorbents

Santamaría Arana, Leticia; López Aizpún, María; García Padial, Marcos; Vicente, Miguel Ángel; Korili, Sophia A.; Gil Bravo, Antonio

Publication:
Zn-Ti-Al layered double hydroxides synthesized from aluminum saline slag wastes as efficient drug adsorbents

dc.contributor.author	Santamaría Arana, Leticia
dc.contributor.author	López Aizpún, María
dc.contributor.author	García Padial, Marcos
dc.contributor.author	Vicente, Miguel Ángel
dc.contributor.author	Korili, Sophia A.
dc.contributor.author	Gil Bravo, Antonio
dc.contributor.department	Zientziak	eu
dc.contributor.department	Institute for Advanced Materials and Mathematics - INAMAT2	en
dc.contributor.department	Ciencias	es_ES
dc.contributor.funder	Gobierno de Navarra / Nafarroako Gobernua, PI017-PI039 CORRAL	es
dc.contributor.funder	Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa	es
dc.date.accessioned	2020-05-29T07:13:39Z
dc.date.available	2022-03-15T00:00:14Z
dc.date.issued	2020
dc.description.abstract	This work reports the synthesis of Zinc-Titanium-Aluminum (ZnTiAl) layered double hydroxides (LDH) with various proportions of Al[sbnd]Ti and a Zn/(Al[sbnd]Ti) molar ratio of 3:1 by the co-precipitation method. Two series, made with commercial aluminum (Al) and aluminum extracted from saline slags (Al), have been considered. Structural characterization and comparison of the two series has been made using powder X-ray diffraction (PXRD), Nitrogen physisorption at 77 K, Scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and Thermogravimetry measurements. The adsorption capacity of diclofenac and salicylic acid, as examples of emergent pollutants, by the different LDH on batch and fixed-bed column experiments has been analyzed. The effect of various parameters, such as the pH, the initial concentration of pollutant, the mass of adsorbent and the contact time, on the sorption behavior were studied and compared. The contact time to attain equilibrium for maximum adsorption was found to be between 100 and 400 min. The kinetic and equilibrium results were correlated to several adsorption and isotherm equation models. The synthesized materials were more effective in removing diclofenac than salicylic acid, being Zn6Al2 the hydrotalcite that showed the highest adsorption capacity. The results showed a new application of a material obtained from the valorization of an industrial waste such as aluminum saline slags.	en
dc.description.sponsorship	This work was funded by the Spanish Ministry of Economy, Industry and Competitiveness (AEI/MINECO), and the European Regional Development Fund (ERDF) through project MAT2016-78863-C2-R and the Government of Navarra through projects PI017-PI039 CORRAL. LS thanks Universidad Pública de Navarra for a pre-doctoral grant. AG also thanks Santander Bank for funding through the Research Intensification Program.	en
dc.embargo.lift	2022-03-15
dc.embargo.terms	2022-03-15
dc.format.extent	43 p.
dc.format.mimetype	application/pdf	en
dc.identifier.doi	10.1016/j.clay.2020.105486
dc.identifier.issn	0169-1317
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/36991
dc.language.iso	eng	en
dc.publisher	Elsevier	en
dc.relation.ispartof	Applied Clay Science, 2020, 187, 105486	en
dc.relation.projectID	info:eu-repo/grantAgreement/ES/1PE/MAT2016-78863	en
dc.relation.publisherversion	https://doi.org/10.1016/j.clay.2020.105486
dc.rights	© 2020 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	Aluminum industrial wastes	en
dc.subject	Adsorption removal of diclofenac	en
dc.subject	Hydrotalcite from saline slags	en
dc.subject	Layered double hydroxides	en
dc.subject	Adsorption removal of salicylic acid	en
dc.title	Zn-Ti-Al layered double hydroxides synthesized from aluminum saline slag wastes as efficient drug adsorbents	en
dc.type	info:eu-repo/semantics/article
dc.type.version	info:eu-repo/semantics/acceptedVersion	en
dc.type.version	Versión aceptada / Onetsi den bertsioa	es
dspace.entity.type	Publication
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