Photocatalytic activity of erbium-doped TiO{sub 2} nanoparticles immobilized in macro-porous silica films
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...
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| Veröffentlicht in: | Materials research bulletin 2012-02, Vol.47 (2) |
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| container_title | Materials research bulletin |
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| creator | Castaneda-Contreras, J. Maranon-Ruiz, V.F. Chiu-Zarate, R. Perez-Ladron de Guevara, H. Rodriguez, R. Michel-Uribe, C. |
| description | 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_str_mv | 10.1016/J.MATERRESBULL.2011.11.021 |
| format | Article |
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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. 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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.</abstract><cop>United States</cop><doi>10.1016/J.MATERRESBULL.2011.11.021</doi></addata></record> |
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| subjects | ATOMIC FORCE MICROSCOPY DOPED MATERIALS ERBIUM ERBIUM IONS MATERIALS SCIENCE METHYLENE BLUE NANOSCIENCE AND NANOTECHNOLOGY NANOSTRUCTURES PARTICLES PHOTOCATALYSIS RED SHIFT SEPARATION PROCESSES SILICA THIN FILMS TITANIUM OXIDES X-RAY DIFFRACTION |
| title | Photocatalytic activity of erbium-doped TiO{sub 2} nanoparticles immobilized in macro-porous silica films |
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