Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/226737
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Layered nanocomposite 2D-TiO2 with Cu2O nanoparticles as an efficient photocatalyst for 4-chlorophenol degradation and hydrogen evolution |
Autor: | Alegría, Matías; Aliaga, Juan; Ballesteros, Luis; Sotomayor Torres, C. M. CSIC ORCID; González, Guillermo; Benavente, Eglantina | Fecha de publicación: | 2020 | Editor: | Springer Nature | Citación: | Topics in Catalysis: (2020) | Resumen: | New composites formed by layered hybrid TiO2(stearic acid) (LHTiO2) and, Cu2O nanoparticles were studied as photocatalysts that extend the response range to light visible for the evolution of hydrogen and the degradation of 4-chlorophenol. The results revealed that LHTiO2/Cu2O exhibited a clearly improved photocatalytic degradation, about 5.6 times faster than pristine TiO2, and hydrogen evolution of about 2.7 times higher than the TiO2 anatase. The enhanced photocatalytic activity can be assigned to the properties of the two-dimensional morphology, in sheets-like arrangement of LHTiO2, benefitting from the high exposure of surface, with more active sites available to improve matching with the surfaces of the Cu2O nanocrystals and significant reduction of migration distances of photogenerated carriers. In the photocatalytic degradation, a mechanism Z-scheme is supported, and in the photocatalytic evolution of hydrogen a mechanism type II band alignment is indicated. Photocatalytic reuse tests showed that stability and catalytic activity of LHTiO2/Cu2O were maintained for three cycles. Photoelectrochemical evaluation were performed through measurements of the photocurrent response and electrochemical impedance. | Versión del editor: | https://doi.org/10.1007/s11244-020-01360-6 | URI: | http://hdl.handle.net/10261/226737 | DOI: | 10.1007/s11244-020-01360-6 | E-ISSN: | 1572-9028 |
Aparece en las colecciones: | (CIN2) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 59,24 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
12
checked on 03-may-2024
WEB OF SCIENCETM
Citations
10
checked on 25-feb-2024
Page view(s)
125
checked on 06-may-2024
Download(s)
26
checked on 06-may-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.