Photocatalytic Activity of Mesoporous alpha-Fe2O3 Synthesized via Soft Chemistry and Hard Template Methods for Degradation of Azo Dye Orange II
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Otros documentos de la autoría: Domingo, Emma; Beltrán Beltrán, Alicia; Sanchis, Rut; García, Tomás; Solsona, Benjamín; Galindo, Francisco
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7053
comunitat-uji-handle3:10234/8639
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https://doi.org/10.1007/s10562-018-2340-5 |
Metadatos
Título
Photocatalytic Activity of Mesoporous alpha-Fe2O3 Synthesized via Soft Chemistry and Hard Template Methods for Degradation of Azo Dye Orange IIAutoría
Fecha de publicación
2018-05Editor
SpringerCita bibliográfica
DOMINGO, Emma; BELTRÁN BELTRÁN, Alicia; SANCHIS, Rut; GARCÍA, Tomás; SOLSONA, Benjamín; GALINDO HONRUBIA, Francisco, (2018) "Photocatalytic Activity of Mesoporous alpha-Fe2O3 Synthesized via Soft Chemistry and Hard Template Methods for Degradation of Azo Dye Orange II2", Catalysis Letters, v. 148, Issue 5, p. 1289–1295Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://link.springer.com/article/10.1007/s10562-018-2340-5Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The photocatalytic activities of two samples of α-Fe2O3 nanoparticles have been evaluated. One sample has been synthesized by a precipitation method with oxalic acid (soft method), and the other sample has been produced ... [+]
The photocatalytic activities of two samples of α-Fe2O3 nanoparticles have been evaluated. One sample has been synthesized by a precipitation method with oxalic acid (soft method), and the other sample has been produced with the aid of a hard template (nanocasting with silica). The photodegradation of azo dye Orange II (OII), a model water pollutant, has been used as a benchmark reaction. It has been found that the synthetic method has a deep effect on the photocatalytic activity of the tested hematites, since sample created with the soft method is notably more photoactive than the one made with nanocasting procedure (k = 8.9 × 10− 3 min−1 vs. k = 1.6 × 10−3 min−1 respectively) when irradiated with UV light. Similar higher activity of the soft method sample has been found when visible light was used as excitation source (k = 8.3 × 10−3 min−1 vs. k = 0.4 × 10−3 min−1 respectively). The enhanced surface adsorption of OII on the sample prepared via the soft methodology, which is ten times higher than the adsorption on sample prepared via the nanocasting path, could explain the better photocatalytic performance of the former material. [-]
Publicado en
Catalysis Letters (2018), v. 148, Issue 5Proyecto de investigación
1) Spanish Ministerio de Economía y Competitividad (CTQ2015-71004-R, MAT2017-84118-C2-1-R) ; 2) Universitat Jaume I (grant P1.1B2015-76) ; 3) University of Valencia for funding (UV-INV-AE-16-484416)Derechos de acceso
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/restrictedAccess
info:eu-repo/semantics/restrictedAccess
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