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dc.creatorPérez-Larios, Alejandro
dc.creatorGómez, Ricardo
dc.date2013-12-01
dc.date.accessioned2022-05-25T14:01:19Z
dc.date.available2022-05-25T14:01:19Z
dc.identifierhttps://revistas.unilibre.edu.co/index.php/avances/article/view/2746
dc.identifier.urihttp://test.repositoriodigital.com:8080/handle/123456789/36136
dc.descriptionIn this work we obtained materials of titanium dioxidewhit mixed oxide CoO-TiO2 and WO3-TiO2(1.0, 3.0, 5.0 %wt). The solids were characterizedby; nitrogen physisorption (BET) and porosity(BJH), XRD patterns and UV-Vis spectroscopy.The photoactivity was evaluated using a Pyrexreactor of 200 ml using a solution ethanol-water(1:1 molar ratio) and 0.1 g of catalyst using a highpressure Hg lamp (with a wavelength of 254 nmand an intensity of 2.2 mW/cm2 encapsulated ina quartz tube. The results showed materials withspecific surface area among 89 to 95 m2/g and 41to 91 m2/g with mesopority characteristics. TheXRD patterns show the formation of the crystallineanatase phase. The band gap energy (Eg) for thematerials were obtained with UV-Vis spectroscopy,the Eg values were lower than 3.2 eV for both mixedoxide. In the water splitting evaluation a maximin the efficient was found at Co and W at 5 wt.%.The hydrogen produced was 1000 μmol/h and 950μmol/h respectively, this is a value comparable torespect other works.en-US
dc.formatapplication/pdf
dc.languagespa
dc.publisherUniversidad Librees-ES
dc.relationhttps://revistas.unilibre.edu.co/index.php/avances/article/view/2746/2166
dc.sourceAvances: Investigación en Ingeniería; Vol. 10 No. 2 (2013): Avances Investigación en Ingeniería; 27-34en-US
dc.sourceAvances Investigación en Ingeniería; Vol. 10 Núm. 2 (2013): Avances Investigación en Ingeniería; 27-34es-ES
dc.source2619-6581
dc.source1794-4953
dc.source10.18041/avances.v10i1
dc.subjectHydrogen productionen-US
dc.subjectMixed oxideen-US
dc.subjectSol gelen-US
dc.subjectPhotocatalystsen-US
dc.subjectUV-visen-US
dc.titleHydrogen production using mixed oxides: TiO2-M (CoO and WO3)en-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typePeer reviewed Articleen-US


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