Catalytic photodegradation of organic compounds using TiO2/pillared clays synthesized using a nonconventional aluminum source

Cardona Rodríguez, Yaneth; Wegrzyn, Agnieszka; Miskowiec, Pawel; Korili, Sophia A.; Gil Bravo, Antonio

Catalytic photodegradation of organic compounds using TiO2/pillared clays synthesized using a nonconventional aluminum source

dc.contributor.author	Cardona Rodríguez, Yaneth
dc.contributor.author	Wegrzyn, Agnieszka
dc.contributor.author	Miskowiec, Pawel
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	Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa	es
dc.date.accessioned	2022-09-02T11:30:18Z
dc.date.available	2022-09-02T11:30:18Z
dc.date.issued	2022-10-15
dc.date.updated	2022-09-02T11:27:18Z
dc.description.abstract	This study evaluates the photocatalytic degradation of 2,6-dichlorophenol (2,6-DCP), triclosan (TCS) and bisphenol A (BPA) by ultraviolet (UV) and visible (VIS) light in the presence of TiO2/catalysts synthesized by wet impregnation followed by calcination. The catalyst supports used were three alumina pillared clays (Al-PILC) synthesized using various aluminum sources and montmorillonite (Mt) as raw material. One of the Al-PILC was prepared following the conventional method (Al-PILCCM), using a commercial aluminum salt, and the other two were synthesized using a saline slag, with the aluminum used being extracted with the alkaline (Al-PILCBE) or the acid (Al-PILCAE) method. Mt was impregnated with various amounts of titanium (1, 5, 10, and 20 wt% Ti) and evaluated for the photodegradation of the aforementioned pollutants, comparing the results with those obtained using commercial anatase. Due to the higher conversion rates, 10 and 20 wt% Ti were chosen to impregnate the Al-PILC and to evaluate the photocatalytic performance. All materials were characterized by several techniques, which confirmed the successful formation of TiO2 in the anatase phase. In all cases, photodegradation was higher when using UV light and the most photodegraded pollutant was TCS (85.15 ± 0.49%), followed by 2,6-DCP (65.43 ± 0.79%) and, to a lesser degree, BPA (36.15 ± 0.65%). Al-PILC showed higher photodegradation percentages, with Al-PILCAE exhibiting the highest values for both types of light. An analysis of the photoproducts by HPLC-MS suggested that the preferred pathway for TCS and 2,6-DCP photodegradation depends on the type of light used.	en
dc.description.sponsorship	The authors are grateful for financial support from the Spanish Ministry of Science and Innovation (MCIN/AEI/10.13039/501100011033) through project PID2020-112656RB-C21. YC thanks the Universidad Pública de Navarra for a pre-doctoral grant. This project has received funding from the European Union`s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement Nº 801586. AG also thanks Santander Bank for funding via the Research Intensification Program.	en
dc.format.mimetype	application/pdf	en
dc.format.mimetype	application/msword	en
dc.identifier.citation	Cardona, Y.; Węgrzyn, A.; Miśkowiec, P.; Korili, S. A.; Gil, A. (2022). Catalytic photodegradation of organic compounds using TiO2/pillared clays synthesized using a nonconventional aluminum source. Chemical Engineering Journal. Vol. 446 (2)	en
dc.identifier.doi	10.1016/j.cej.2022.136908
dc.identifier.issn	1385-8947
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/43937
dc.language.iso	eng	en
dc.publisher	Elsevier	en
dc.relation.ispartof	Chemical Engineering Journal, 2022, 446 (2)	en
dc.relation.projectID	info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112656RB-C21/ES/
dc.relation.projectID	info:eu-repo/grantAgreement/European Commission/Horizon 2020 Framework Programme/801586/
dc.relation.publisherversion	https://doi.org/10.1016/j.cej.2022.136908
dc.rights	© 2022 Elsevier B.V. This is an open access article under the CC BY-NC-ND license.	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.rights.uri	https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	Alumina-pillared clay	en
dc.subject	Aluminum saline slag	en
dc.subject	Montmorillonite	en
dc.subject	Organic pollutant	en
dc.subject	Photodegradation	en
dc.subject	Titanium catalyst	en
dc.title	Catalytic photodegradation of organic compounds using TiO2/pillared clays synthesized using a nonconventional aluminum source	en
dc.type	info:eu-repo/semantics/article
dc.type.version	info:eu-repo/semantics/acceptedVersion
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