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http://cimav.repositorioinstitucional.mx/jspui/handle/1004/2400| 1.33 Enhanced Photocatalytic Activity for H2 Production by RGO/P25 Composite through UV Assisted Anchoring | |
| BLANCA CRISTINA HERNANDEZ MAJALCA MIGUEL JESUS MELENDEZ ZARAGOZA Jesús Manuel Salinas Gutiérrez Alejandro López Ortíz VIRGINIA HIDALINA COLLINS MARTINEZ | |
| Acceso Abierto | |
| Atribución-SinDerivadas | |
| In this work, graphene oxide (GO) was prepared by the Tour method from graphite powder employing a microwave pre-treatment, which was used to modify TiO2 (P25). A composite of reduced graphene oxide (RGO) and P25 was prepared (RGO/P25) by UV assisted anchoring of P25 on RGO. The structure, morphology, textural and optical properties were studied by XRD, SEM, BET and UV-Vis techniques, respectively. Water splitting photocatalytic evaluation used an aqueous methanol solution of the suspended composite material and a 250 W mercury lamp as light irradiation source. Results indicate a bandgap value of 2.57 eV for the RGO/P25 composite, while this material exhibited a H2 production rate greater than either P25 or graphene oxide alone. A significant enhancement in the hydrogen production rate was achieved by RGO/P25 as photocatalyst obtaining ~400 μmol H2/gh. This can be presumably attributed to graphene oxide acting as an electron collector and transporter in the RGO/P25 composite. | |
| 2017 | |
| Memoria de congreso | |
| Inglés | |
| PROCESOS QUÍMICOS | |
| Aparece en las colecciones: | Artículos de Congresos |
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| Enhanced Photocatalytic Activity for H2 Production by RGO-P25 Composite.pdf | 1.14 MB | Adobe PDF | Visualizar/Abrir |