1.33 Enhanced Photocatalytic Activity for H2 Production by RGO/P25 Composite through UV Assisted Anchoring

dc.creatorBLANCA CRISTINA HERNANDEZ MAJALCA
dc.creatorMIGUEL JESUS MELENDEZ ZARAGOZA
dc.creatorJesús Manuel Salinas Gutiérrez
dc.creatorAlejandro López Ortíz
dc.creatorVIRGINIA HIDALINA COLLINS MARTINEZ
dc.date2017
dc.date.accessioned2023-07-21T15:32:06Z
dc.date.available2023-07-21T15:32:06Z
dc.identifierhttp://cimav.repositorioinstitucional.mx/jspui/handle/1004/2400
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7728301
dc.descriptionIn 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.
dc.formatapplication/pdf
dc.languageeng
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nd/4.0
dc.subjectinfo:eu-repo/classification/cti/2
dc.subjectinfo:eu-repo/classification/cti/23
dc.subjectinfo:eu-repo/classification/cti/2302
dc.subjectinfo:eu-repo/classification/cti/330303
dc.subjectinfo:eu-repo/classification/cti/330303
dc.title1.33 Enhanced Photocatalytic Activity for H2 Production by RGO/P25 Composite through UV Assisted Anchoring
dc.typeinfo:eu-repo/semantics/conferenceProceedings


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