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dc.contributor.author | Serra, Marco | es_ES |
dc.contributor.author | García Gómez, Hermenegildo | es_ES |
dc.date.accessioned | 2020-04-17T12:51:23Z | |
dc.date.available | 2020-04-17T12:51:23Z | |
dc.date.issued | 2014 | es_ES |
dc.identifier.issn | 1110-662X | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/140950 | |
dc.description.abstract | [EN] Alkali digestion of titanium nanoparticles leads, after neutralization, to the formation of titanate nanotubes with long aspect ratio. One salient change in the formation of titanate nanotubes is the observation of an extended visible absorption band up to 550 nm, responsible for their brown colour. Combination of titanate nanotubes with commercial titanium dioxide nanoparticles, either Evonik P25 or Millennium PC500, results in an enhanced photocatalytic activity for hydrogen generation from water-methanol mixtures. This synergy between the two titanium semiconductors has an optimum for a certain proportion of the two components and is observed in both the absence and the presence of platinum or gold nanoparticles. The best efficiency under simulated sunlight irradiation was for a combination of 12 wt.% titanate nanotubes containing 0.32 wt.% platinum in 88 wt.% Millennium PC500, where a two-time increase in the hydrogen generation is observed versus the activity of Millennium PC500 containing platinum. This synergy is proposed to derive from the interfacial electron transfer from titanate nanotubes undergoing photoexcitation at wavelengths in which Millennium PC500 does not absorb this form of titania nanoparticles. Our results illustrate how the combination of several titanium semiconductors can result in an enhancement efficiency with respect to their individual components. | es_ES |
dc.description.sponsorship | Financial support by the Spanish Ministry of Economy and Competitiveness (Severo Ochoa and CTQ20212-32315) and Generalitat Valenciana (Prometeo 2012-014) is gratefully acknowledged. Marco Serra thanks the Spanish CSIC for a postgraduate scholarship. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | Hindawi Limited | es_ES |
dc.relation.ispartof | International Journal of Photoenergy | es_ES |
dc.rights | Reconocimiento (by) | es_ES |
dc.subject.classification | QUIMICA ORGANICA | es_ES |
dc.title | Synergy of the combination of titanate nanotubes with titania nanoparticles for the photocatalytic hydrogen generation from water-methanol mixture using simulated sunlight | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1155/2014/426797 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/GVA//PROMETEO%2F2012%2F014/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//CTQ2012-32315/ES/REDUCCION FOTOCATALITICA DEL DIOXIDO DE CARBONO/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Química - Departament de Química | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química | es_ES |
dc.description.bibliographicCitation | Serra, M.; García Gómez, H. (2014). Synergy of the combination of titanate nanotubes with titania nanoparticles for the photocatalytic hydrogen generation from water-methanol mixture using simulated sunlight. International Journal of Photoenergy. (4267971):1-7. https://doi.org/10.1155/2014/426797 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/110.1155/2014/426797 | es_ES |
dc.description.upvformatpinicio | 1 | es_ES |
dc.description.upvformatpfin | 7 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.issue | 4267971 | es_ES |
dc.relation.pasarela | S\285697 | es_ES |
dc.contributor.funder | Generalitat Valenciana | es_ES |
dc.contributor.funder | Ministerio de Economía y Competitividad | es_ES |
dc.description.references | Centi, G., & Perathoner, S. (2010). Towards Solar Fuels from Water and CO2. ChemSusChem, 3(2), 195-208. doi:10.1002/cssc.200900289 | es_ES |
dc.description.references | Gust, D., Moore, T. A., & Moore, A. L. (2009). Solar Fuels via Artificial Photosynthesis. Accounts of Chemical Research, 42(12), 1890-1898. doi:10.1021/ar900209b | es_ES |
dc.description.references | Hammarström, L. (2009). Artificial Photosynthesis and Solar Fuels. Accounts of Chemical Research, 42(12), 1859-1860. doi:10.1021/ar900267k | es_ES |
dc.description.references | Roy, S. C., Varghese, O. K., Paulose, M., & Grimes, C. A. (2010). Toward Solar Fuels: Photocatalytic Conversion of Carbon Dioxide to Hydrocarbons. ACS Nano, 4(3), 1259-1278. doi:10.1021/nn9015423 | es_ES |
dc.description.references | Khan, G., Choi, S. K., Kim, S., Lim, S. K., Jang, J. S., & Park, H. (2013). Carbon nanotubes as an auxiliary catalyst in heterojunction photocatalysis for solar hydrogen. Applied Catalysis B: Environmental, 142-143, 647-653. doi:10.1016/j.apcatb.2013.05.075 | es_ES |
dc.description.references | Marschall, R. (2013). Semiconductor Composites: Strategies for Enhancing Charge Carrier Separation to Improve Photocatalytic Activity. Advanced Functional Materials, 24(17), 2421-2440. doi:10.1002/adfm.201303214 | es_ES |
dc.description.references | Rawal, S. B., Bera, S., Lee, D., Jang, D.-J., & Lee, W. I. (2013). Design of visible-light photocatalysts by coupling of narrow bandgap semiconductors and TiO2: effect of their relative energy band positions on the photocatalytic efficiency. Catalysis Science & Technology, 3(7), 1822. doi:10.1039/c3cy00004d | es_ES |
dc.description.references | Wu, L., Xing, J., Hou, Y., Xiao, F. Y., Li, Z., & Yang, H. G. (2013). Fabrication of Regular ZnO/TiO2Heterojunctions with Enhanced Photocatalytic Properties. Chemistry - A European Journal, 19(26), 8393-8396. doi:10.1002/chem.201300849 | es_ES |
dc.description.references | Sayama, K., Yoshida, R., Kusama, H., Okabe, K., Abe, Y., & Arakawa, H. (1997). Photocatalytic decomposition of water into H2 and O2 by a two-step photoexcitation reaction using a WO3 suspension catalyst and an Fe3+/Fe2+ redox system. Chemical Physics Letters, 277(4), 387-391. doi:10.1016/s0009-2614(97)00903-2 | es_ES |
dc.description.references | Crabtree, G. W., Dresselhaus, M. S., & Buchanan, M. V. (2004). The Hydrogen Economy. Physics Today, 57(12), 39-44. doi:10.1063/1.1878333 | es_ES |
dc.description.references | Dunn, S. (2002). Hydrogen futures: toward a sustainable energy system. International Journal of Hydrogen Energy, 27(3), 235-264. doi:10.1016/s0360-3199(01)00131-8 | es_ES |
dc.description.references | Esswein, A. J., & Nocera, D. G. (2007). Hydrogen Production by Molecular Photocatalysis. Chemical Reviews, 107(10), 4022-4047. doi:10.1021/cr050193e | es_ES |
dc.description.references | Jensen, S. H., Larsen, P. H., & Mogensen, M. (2007). Hydrogen and synthetic fuel production from renewable energy sources. International Journal of Hydrogen Energy, 32(15), 3253-3257. doi:10.1016/j.ijhydene.2007.04.042 | es_ES |
dc.description.references | Navarro, R. M., Sánchez-Sánchez, M. C., Alvarez-Galvan, M. C., Valle, F. del, & Fierro, J. L. G. (2009). Hydrogen production from renewable sources: biomass and photocatalytic opportunities. Energy Environ. Sci., 2(1), 35-54. doi:10.1039/b808138g | es_ES |
dc.description.references | Ni, M., Leung, M. K. H., Leung, D. Y. C., & Sumathy, K. (2007). A review and recent developments in photocatalytic water-splitting using TiO2 for hydrogen production. Renewable and Sustainable Energy Reviews, 11(3), 401-425. doi:10.1016/j.rser.2005.01.009 | es_ES |
dc.description.references | NOWOTNY, J., SORRELL, C., SHEPPARD, L., & BAK, T. (2005). Solar-hydrogen: Environmentally safe fuel for the future. International Journal of Hydrogen Energy, 30(5), 521-544. doi:10.1016/j.ijhydene.2004.06.012 | es_ES |
dc.description.references | Tsai, C.-C., & Teng, H. (2006). Structural Features of Nanotubes Synthesized from NaOH Treatment on TiO2with Different Post-Treatments. Chemistry of Materials, 18(2), 367-373. doi:10.1021/cm0518527 | es_ES |
dc.description.references | Chen, X., Liu, L., Yu, P. Y., & Mao, S. S. (2011). Increasing Solar Absorption for Photocatalysis with Black Hydrogenated Titanium Dioxide Nanocrystals. Science, 331(6018), 746-750. doi:10.1126/science.1200448 | es_ES |
dc.description.references | Primo, A., Marino, T., Corma, A., Molinari, R., & García, H. (2011). Efficient Visible-Light Photocatalytic Water Splitting by Minute Amounts of Gold Supported on Nanoparticulate CeO2Obtained by a Biopolymer Templating Method. Journal of the American Chemical Society, 133(18), 6930-6933. doi:10.1021/ja2011498 | es_ES |
dc.description.references | Gomes Silva, C., Juárez, R., Marino, T., Molinari, R., & García, H. (2011). Influence of Excitation Wavelength (UV or Visible Light) on the Photocatalytic Activity of Titania Containing Gold Nanoparticles for the Generation of Hydrogen or Oxygen from Water. Journal of the American Chemical Society, 133(3), 595-602. doi:10.1021/ja1086358 | es_ES |
dc.description.references | Bamwenda, G. R., Tsubota, S., Kobayashi, T., & Haruta, M. (1994). Photoinduced hydrogen production from an aqueous solution of ethylene glycol over ultrafine gold supported on TiO2. Journal of Photochemistry and Photobiology A: Chemistry, 77(1), 59-67. doi:10.1016/1010-6030(94)80009-x | es_ES |
dc.description.references | Haruta, M. (1997). Size- and support-dependency in the catalysis of gold. Catalysis Today, 36(1), 153-166. doi:10.1016/s0920-5861(96)00208-8 | es_ES |
dc.description.references | Serpone, N., Emeline, A. V., Horikoshi, S., Kuznetsov, V. N., & Ryabchuk, V. K. (2012). On the genesis of heterogeneous photocatalysis: a brief historical perspective in the period 1910 to the mid-1980s. Photochemical & Photobiological Sciences, 11(7), 1121. doi:10.1039/c2pp25026h | es_ES |
dc.description.references | Aprile, C., Corma, A., & Garcia, H. (2008). Enhancement of the photocatalytic activity of TiO2through spatial structuring and particle size control: from subnanometric to submillimetric length scale. Phys. Chem. Chem. Phys., 10(6), 769-783. doi:10.1039/b712168g | es_ES |