Photocatalytic activity of erbium-doped TiO{sub 2} nanoparticles immobilized in macro-porous silica films
Abstract
Highlights: Black-Right-Pointing-Pointer Erbium-doped TiO{sub 2} nanoparticles were immobilized on macro-porous silica films. Black-Right-Pointing-Pointer The films were obtained by a phase separation process. Black-Right-Pointing-Pointer The samples exhibited photo-catalytic activity under visible light. Black-Right-Pointing-Pointer The sensitization of TiO{sub 2} was attributed to a red shift in the TiO{sub 2} band-gap. -- Abstract: A macro-porous silica film served as mechanical support to immobilize TiO{sub 2} nanoparticles, which were doped with erbium. The films and the nanoparticles were prepared by sol-gel route. The nanoparticles exhibited photocatalytic activity under visible light. We obtained a degradation rate of methylene blue that followed first order kinetics. The sensitization of the nanoparticles to visible light was attributed to a red shift in the band-gap of the TiO{sub 2} due to the addition of erbium ions.
- Authors:
-
- C.U. de los Lagos, Universidad de Guadalajara, Lagos de Moreno, Jalisco (Mexico)
- C. U. de Ciencias Exactas e Ingenieria, Universidad de Guadalajara, Guadalajara, Jalisco (Mexico)
- Publication Date:
- OSTI Identifier:
- 22212413
- Resource Type:
- Journal Article
- Journal Name:
- Materials Research Bulletin
- Additional Journal Information:
- Journal Volume: 47; Journal Issue: 2; Other Information: Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ATOMIC FORCE MICROSCOPY; DOPED MATERIALS; ERBIUM; ERBIUM IONS; METHYLENE BLUE; NANOSTRUCTURES; PARTICLES; PHOTOCATALYSIS; RED SHIFT; SEPARATION PROCESSES; SILICA; THIN FILMS; TITANIUM OXIDES; X-RAY DIFFRACTION
Citation Formats
Castaneda-Contreras, J., E-mail: jcc050769@yahoo.com.mx, Maranon-Ruiz, V. F., Chiu-Zarate, R., Perez-Ladron de Guevara, H., Rodriguez, R., and Michel-Uribe, C. Photocatalytic activity of erbium-doped TiO{sub 2} nanoparticles immobilized in macro-porous silica films. United States: N. p., 2012.
Web. doi:10.1016/J.MATERRESBULL.2011.11.021.
Castaneda-Contreras, J., E-mail: jcc050769@yahoo.com.mx, Maranon-Ruiz, V. F., Chiu-Zarate, R., Perez-Ladron de Guevara, H., Rodriguez, R., & Michel-Uribe, C. Photocatalytic activity of erbium-doped TiO{sub 2} nanoparticles immobilized in macro-porous silica films. United States. https://doi.org/10.1016/J.MATERRESBULL.2011.11.021
Castaneda-Contreras, J., E-mail: jcc050769@yahoo.com.mx, Maranon-Ruiz, V. F., Chiu-Zarate, R., Perez-Ladron de Guevara, H., Rodriguez, R., and Michel-Uribe, C. 2012.
"Photocatalytic activity of erbium-doped TiO{sub 2} nanoparticles immobilized in macro-porous silica films". United States. https://doi.org/10.1016/J.MATERRESBULL.2011.11.021.
@article{osti_22212413,
title = {Photocatalytic activity of erbium-doped TiO{sub 2} nanoparticles immobilized in macro-porous silica films},
author = {Castaneda-Contreras, J., E-mail: jcc050769@yahoo.com.mx and Maranon-Ruiz, V. F. and Chiu-Zarate, R. and Perez-Ladron de Guevara, H. and Rodriguez, R. and Michel-Uribe, C.},
abstractNote = {Highlights: Black-Right-Pointing-Pointer Erbium-doped TiO{sub 2} nanoparticles were immobilized on macro-porous silica films. Black-Right-Pointing-Pointer The films were obtained by a phase separation process. Black-Right-Pointing-Pointer The samples exhibited photo-catalytic activity under visible light. Black-Right-Pointing-Pointer The sensitization of TiO{sub 2} was attributed to a red shift in the TiO{sub 2} band-gap. -- Abstract: A macro-porous silica film served as mechanical support to immobilize TiO{sub 2} nanoparticles, which were doped with erbium. The films and the nanoparticles were prepared by sol-gel route. The nanoparticles exhibited photocatalytic activity under visible light. We obtained a degradation rate of methylene blue that followed first order kinetics. The sensitization of the nanoparticles to visible light was attributed to a red shift in the band-gap of the TiO{sub 2} due to the addition of erbium ions.},
doi = {10.1016/J.MATERRESBULL.2011.11.021},
url = {https://www.osti.gov/biblio/22212413},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 2,
volume = 47,
place = {United States},
year = {Wed Feb 15 00:00:00 EST 2012},
month = {Wed Feb 15 00:00:00 EST 2012}
}