Methylene blue degradation over M-TiO2 photocatalysts (M= Au or Pt) / Degradación de azul de metileno sobre fotocatalizadores M-TiO2 (M = Au o Pt)
AbstractIn this study it was evaluated the methylene blue degradation over TiO2 modified by sulfation and Au or Pt addition. These materials were synthesized by photodeposition method and they were widely characterized by different techniques. In general, it was found that Au or Pt particles size di...
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| Format: | Online |
| Language: | eng |
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Universidad Pedagógica y Tecnológica de Colombia
2017
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| Online Access: | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/5352 |
| _version_ | 1801706337527136256 |
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| author | MURCIA MESA, JULIE JOSEANE Guarín Romero, Jhonatan Ricardo Cely Macías, Ángela Carolina Rojas Sarmiento, Hugo Alfonso Cubillos Lobo, Jairo Antonio Navío Santos, José Antonio Hidalgo López, María del Carmen |
| author_facet | MURCIA MESA, JULIE JOSEANE Guarín Romero, Jhonatan Ricardo Cely Macías, Ángela Carolina Rojas Sarmiento, Hugo Alfonso Cubillos Lobo, Jairo Antonio Navío Santos, José Antonio Hidalgo López, María del Carmen |
| author_sort | MURCIA MESA, JULIE JOSEANE |
| collection | OJS |
| description | AbstractIn this study it was evaluated the methylene blue degradation over TiO2 modified by sulfation and Au or Pt addition. These materials were synthesized by photodeposition method and they were widely characterized by different techniques. In general, it was found that Au or Pt particles size distribution can be effectively controlled modifying the deposition time. It was also found that metal particle size and dye adsorption on TiO2 surface, are important factors influencing the methylene blue degradation rate. The highest dye degradation was obtained on Au-TiO2 photocatalyst prepared by using 120 min of deposition time, the highest effectiveness of this material in the methylene blue degradation can be mainly due to a combined effect between the presence of gold nanoparticles acting as a sink for the electrons photogenerated during the catalytic reaction and the better adsorption of the dye over the TiO2 surface partially covered by gold particles with the largest sizes. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-5352 |
| institution | Revista Ciencia en Desarrollo |
| language | eng |
| publishDate | 2017 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-53522022-06-15T17:13:46Z Methylene blue degradation over M-TiO2 photocatalysts (M= Au or Pt) / Degradación de azul de metileno sobre fotocatalizadores M-TiO2 (M = Au o Pt) MURCIA MESA, JULIE JOSEANE Guarín Romero, Jhonatan Ricardo Cely Macías, Ángela Carolina Rojas Sarmiento, Hugo Alfonso Cubillos Lobo, Jairo Antonio Navío Santos, José Antonio Hidalgo López, María del Carmen Methylene blue photodegradation M-TiO2 photocatalysts Fotocatálisis AbstractIn this study it was evaluated the methylene blue degradation over TiO2 modified by sulfation and Au or Pt addition. These materials were synthesized by photodeposition method and they were widely characterized by different techniques. In general, it was found that Au or Pt particles size distribution can be effectively controlled modifying the deposition time. It was also found that metal particle size and dye adsorption on TiO2 surface, are important factors influencing the methylene blue degradation rate. The highest dye degradation was obtained on Au-TiO2 photocatalyst prepared by using 120 min of deposition time, the highest effectiveness of this material in the methylene blue degradation can be mainly due to a combined effect between the presence of gold nanoparticles acting as a sink for the electrons photogenerated during the catalytic reaction and the better adsorption of the dye over the TiO2 surface partially covered by gold particles with the largest sizes. Universidad Pedagógica y Tecnológica de Colombia 2017-05-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/5352 10.19053/01217488.v8.n1.2017.5352 Ciencia En Desarrollo; Vol. 8 No. 1 (2017): Vol 8, Núm. 1 (2017): Enero- Junio; 109-117 Ciencia en Desarrollo; Vol. 8 Núm. 1 (2017): Vol 8, Núm. 1 (2017): Enero- Junio; 109-117 2462-7658 0121-7488 eng https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/5352/pdf Derechos de autor 2017 CIENCIA EN DESARROLLO |
| spellingShingle | Methylene blue photodegradation M-TiO2 photocatalysts Fotocatálisis MURCIA MESA, JULIE JOSEANE Guarín Romero, Jhonatan Ricardo Cely Macías, Ángela Carolina Rojas Sarmiento, Hugo Alfonso Cubillos Lobo, Jairo Antonio Navío Santos, José Antonio Hidalgo López, María del Carmen Methylene blue degradation over M-TiO2 photocatalysts (M= Au or Pt) / Degradación de azul de metileno sobre fotocatalizadores M-TiO2 (M = Au o Pt) |
| title | Methylene blue degradation over M-TiO2 photocatalysts (M= Au or Pt) / Degradación de azul de metileno sobre fotocatalizadores M-TiO2 (M = Au o Pt) |
| title_full | Methylene blue degradation over M-TiO2 photocatalysts (M= Au or Pt) / Degradación de azul de metileno sobre fotocatalizadores M-TiO2 (M = Au o Pt) |
| title_fullStr | Methylene blue degradation over M-TiO2 photocatalysts (M= Au or Pt) / Degradación de azul de metileno sobre fotocatalizadores M-TiO2 (M = Au o Pt) |
| title_full_unstemmed | Methylene blue degradation over M-TiO2 photocatalysts (M= Au or Pt) / Degradación de azul de metileno sobre fotocatalizadores M-TiO2 (M = Au o Pt) |
| title_short | Methylene blue degradation over M-TiO2 photocatalysts (M= Au or Pt) / Degradación de azul de metileno sobre fotocatalizadores M-TiO2 (M = Au o Pt) |
| title_sort | methylene blue degradation over m tio2 photocatalysts m au or pt degradacion de azul de metileno sobre fotocatalizadores m tio2 m au o pt |
| topic | Methylene blue photodegradation M-TiO2 photocatalysts Fotocatálisis |
| topic_facet | Methylene blue photodegradation M-TiO2 photocatalysts Fotocatálisis |
| url | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/5352 |
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