Copper-doped titania photocatalysts for simultaneous reduction of CO2 and production of H2 from aqueous sulfide
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Otros documentos de la autoría: Gonell, Francisco; Puga, Alberto V.; Julian-Lopez, Beatriz; García Gómez, Hermenegildo; CORMA, AVELINO
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Título
Copper-doped titania photocatalysts for simultaneous reduction of CO2 and production of H2 from aqueous sulfideAutoría
Fecha de publicación
2016-01xmlui.dri2xhtml.METS-1.0.item-edition
PostprintEditor
ElsevierCita bibliográfica
GONELL GÓMEZ, Francisco; PUGA, Alberto V.; JULIÁN LÓPEZ, Beatriz; GARCÍA GÓMEZ, Hermenegildo; CORMA CANÓS, Avelino. Copper-doped titania photocatalysts for simultaneous reduction of CO2 and production of H2 from aqueous sulfide. Cover image Applied Catalysis B: Environmental Applied Catalysis B: Environmental (2016), v. 180, pp. 263-270Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/journal/09263373/180Palabras clave / Materias
Resumen
Copper-doped titanium dioxide materials with anatase phase (Cu-TiO2, atomic Cu contents ranging from 0 to 3% relative to the sum of Cu and Ti), and particle sizes of 12–15 nm, were synthesised by a solvo-thermal method ... [+]
Copper-doped titanium dioxide materials with anatase phase (Cu-TiO2, atomic Cu contents ranging from 0 to 3% relative to the sum of Cu and Ti), and particle sizes of 12–15 nm, were synthesised by a solvo-thermal method using ethanol as the solvent and small amounts of water to promote the hydrolysis-condensation processes. Diffuse reflectance UV-vis spectroscopy show that the edges of absorption of the titania materials are somewhat shifted to higher wavelengths due to the presence of Cu. X-Ray Photoelectron Spectroscopy (XPS) indicate that Cu(II) is predominant. Photocatalytic CO2 reduction experiments were performed in aqueous Cu-TiO2 suspensions under UV-rich light and in the presence of different solutes. Sulfide was found to promote the efficient production of H2 from water and formic acid from CO2. The effect of the Cu content on the photoactivity of Cu-TiO2 was also studied, showing that copper plays a role on the photocatalytic reduction of CO2. [-]
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Applied Catalysis B: Environmental (2016), v. 180Derechos de acceso
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info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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