Photocatalytic production of hydrogen and methane from glycerol reforming over Pt/TiO2–Nb2O5
In this study, platinized mixed oxides (TiO<inf>2</inf>–Nb<inf>2</inf>O<inf>5</inf>) were tested on photocatalytic hydrogen production from a glycerol solution under UV light. Different samples with different Ti:Nb ratios were prepared by using a simple method tha...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/400775 |
| Acceso en línea: | http://hdl.handle.net/10261/400775 https://api.elsevier.com/content/abstract/scopus_id/85115922956 |
| Access Level: | acceso abierto |
| Palabra clave: | Ti:Nb weight ratio Glycerol Hydrogen Photocatalysis Pt–TiO2–Nb2O5 weight hydrogen glycerol |
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Photocatalytic production of hydrogen and methane from glycerol reforming over Pt/TiO2–Nb2O5Iervolino, G.Vaiano, V.Murcia Mesa, Julie JoseaneLara, A. E.Hernández, J. S.Rojas, H.Navío, José AntonioHidalgo, M. C.Ti:Nb weight ratioGlycerolHydrogenPhotocatalysisPt–TiO2–Nb2O5weighthydrogenglycerolIn this study, platinized mixed oxides (TiO<inf>2</inf>–Nb<inf>2</inf>O<inf>5</inf>) were tested on photocatalytic hydrogen production from a glycerol solution under UV light. Different samples with different Ti:Nb ratios were prepared by using a simple method that simultaneously combined a physical mixture and a platinum photochemical reduction. This method led to improved physicochemical properties such as low band gap, better Pt nanoparticle distribution on the surface, and the formation of different Pt species. Niobia content was also found to be an important factor in determining the overall efficiency of the Pt–TiO<inf>2</inf>–Nb<inf>2</inf>O<inf>5</inf> photocatalyst in the glycerol reforming reaction. The photocatalytic results showed that Pt on TiO<inf>2</inf>–Nb<inf>2</inf>O<inf>5</inf> enhanced hydrogen production from the aqueous glycerol solution at a 5 wt% initial glycerol concentration. The influence of different operating conditions such as the catalyst dosage and initial glycerol concentration was also evaluated. The results indicated that the best hydrogen and methane production was equal to 6657 μmol/L and 194 μmol/L, respectively after 4 h of UV radiation using Pt/Ti:Nb (1:2) sample and with 3 g/L of catalyst dosage. Moreover, the role of water in photocatalytic hydrogen production was studied through photocatalytic activity tests in the presence of D<inf>2</inf>O. The obtained results confirmed the role of water molecules on the photocatalytic production of hydrogen in an aqueous glycerol solution.A.E. Lara would like to thank the Gobernación de Boyacá for the concession of a PhD researcher grant. This work was financed with resources from the Gobernación de Boyacá by the Fondo Nacional de Financiamiento para la Ciencia, la Tecnología e Innovación (Project 789-2020) and from the Universidad Pedagógica y Tecnológica de Colombia Project SGI 3007.Peer reviewedElsevierGobernación de BoyacáUniversidad Pedagógica y Tecnológica de ColombiaIervolino, G. [0000-0002-9061-094X]Vaiano, V. [0000-0002-2205-7871]Murcia Mesa, Julie Joseane [0000-0002-6237-9517]Lara, A. E. [0000-0002-7479-8495]Hernández, J. S. [0000-0002-6550-7107]Rojas, H. [0000-0003-3906-4522]Navío, José Antonio [0000-0002-7884-1067]Hidalgo, M. C. [0000-0001-9862-6578]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/400775https://api.elsevier.com/content/abstract/scopus_id/85115922956reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1016/j.ijhydene.2021.09.111Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4007752026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
Photocatalytic production of hydrogen and methane from glycerol reforming over Pt/TiO2–Nb2O5 |
| title |
Photocatalytic production of hydrogen and methane from glycerol reforming over Pt/TiO2–Nb2O5 |
| spellingShingle |
Photocatalytic production of hydrogen and methane from glycerol reforming over Pt/TiO2–Nb2O5 Iervolino, G. Ti:Nb weight ratio Glycerol Hydrogen Photocatalysis Pt–TiO2–Nb2O5 weight hydrogen glycerol |
| title_short |
Photocatalytic production of hydrogen and methane from glycerol reforming over Pt/TiO2–Nb2O5 |
| title_full |
Photocatalytic production of hydrogen and methane from glycerol reforming over Pt/TiO2–Nb2O5 |
| title_fullStr |
Photocatalytic production of hydrogen and methane from glycerol reforming over Pt/TiO2–Nb2O5 |
| title_full_unstemmed |
Photocatalytic production of hydrogen and methane from glycerol reforming over Pt/TiO2–Nb2O5 |
| title_sort |
Photocatalytic production of hydrogen and methane from glycerol reforming over Pt/TiO2–Nb2O5 |
| dc.creator.none.fl_str_mv |
Iervolino, G. Vaiano, V. Murcia Mesa, Julie Joseane Lara, A. E. Hernández, J. S. Rojas, H. Navío, José Antonio Hidalgo, M. C. |
| author |
Iervolino, G. |
| author_facet |
Iervolino, G. Vaiano, V. Murcia Mesa, Julie Joseane Lara, A. E. Hernández, J. S. Rojas, H. Navío, José Antonio Hidalgo, M. C. |
| author_role |
author |
| author2 |
Vaiano, V. Murcia Mesa, Julie Joseane Lara, A. E. Hernández, J. S. Rojas, H. Navío, José Antonio Hidalgo, M. C. |
| author2_role |
author author author author author author author |
| dc.contributor.none.fl_str_mv |
Gobernación de Boyacá Universidad Pedagógica y Tecnológica de Colombia Iervolino, G. [0000-0002-9061-094X] Vaiano, V. [0000-0002-2205-7871] Murcia Mesa, Julie Joseane [0000-0002-6237-9517] Lara, A. E. [0000-0002-7479-8495] Hernández, J. S. [0000-0002-6550-7107] Rojas, H. [0000-0003-3906-4522] Navío, José Antonio [0000-0002-7884-1067] Hidalgo, M. C. [0000-0001-9862-6578] Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Ti:Nb weight ratio Glycerol Hydrogen Photocatalysis Pt–TiO2–Nb2O5 weight hydrogen glycerol |
| topic |
Ti:Nb weight ratio Glycerol Hydrogen Photocatalysis Pt–TiO2–Nb2O5 weight hydrogen glycerol |
| description |
In this study, platinized mixed oxides (TiO<inf>2</inf>–Nb<inf>2</inf>O<inf>5</inf>) were tested on photocatalytic hydrogen production from a glycerol solution under UV light. Different samples with different Ti:Nb ratios were prepared by using a simple method that simultaneously combined a physical mixture and a platinum photochemical reduction. This method led to improved physicochemical properties such as low band gap, better Pt nanoparticle distribution on the surface, and the formation of different Pt species. Niobia content was also found to be an important factor in determining the overall efficiency of the Pt–TiO<inf>2</inf>–Nb<inf>2</inf>O<inf>5</inf> photocatalyst in the glycerol reforming reaction. The photocatalytic results showed that Pt on TiO<inf>2</inf>–Nb<inf>2</inf>O<inf>5</inf> enhanced hydrogen production from the aqueous glycerol solution at a 5 wt% initial glycerol concentration. The influence of different operating conditions such as the catalyst dosage and initial glycerol concentration was also evaluated. The results indicated that the best hydrogen and methane production was equal to 6657 μmol/L and 194 μmol/L, respectively after 4 h of UV radiation using Pt/Ti:Nb (1:2) sample and with 3 g/L of catalyst dosage. Moreover, the role of water in photocatalytic hydrogen production was studied through photocatalytic activity tests in the presence of D<inf>2</inf>O. The obtained results confirmed the role of water molecules on the photocatalytic production of hydrogen in an aqueous glycerol solution. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2025 2025 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Postprint info:eu-repo/semantics/acceptedVersion |
| format |
article |
| status_str |
acceptedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/400775 https://api.elsevier.com/content/abstract/scopus_id/85115922956 |
| url |
http://hdl.handle.net/10261/400775 https://api.elsevier.com/content/abstract/scopus_id/85115922956 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
https://doi.org/10.1016/j.ijhydene.2021.09.111 Sí |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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Elsevier |
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Elsevier |
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reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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