Effect of surface properties of copper-modified commercial titanium dioxide photocatalysts on hydrogen production through photoreforming of alcohols
| Autor: | Mallikarjuna N. Nadagouda, Pasqualino Maddalena, Stefano Lettieri, Giuseppina Luciani, Roberto Andreozzi, Laura Clarizia, Raffaele Marotta, Brigida Silvestri, Giuseppe Vitiello, D. K. Pallotti |
|---|---|
| Přispěvatelé: | Clarizia, L., Vitiello, G., Pallotti, K. D., Silvestri, B., Nadagouda, M., Lettieri, S., Luciani, G., Andreozzi, R., Pasqualino, M., Marotta, R. |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Anatase
Materials science Hydrogen hydrogen production Inorganic chemistry Copper-modified titania Photoreforming Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences P25 Catalysis chemistry.chemical_compound photocatalysi Photocatalysis Hydrogen production Renewable Energy Sustainability and the Environment 021001 nanoscience & nanotechnology Condensed Matter Physics Copper 0104 chemical sciences Fuel Technology chemistry Rutile Titanium dioxide chemical engineering 0210 nano-technology |
| Zdroj: | International journal of hydrogen energy 42 (2017): 28349–28362. doi:10.1016/j.ijhydene.2017.09.093 info:cnr-pdr/source/autori:Clarizia, Laura; Vitiello, Giuseppe; Pallotti, Deborah Katia; Silvestri, Brigida; Nadagouda, Mallikarjuna; Lettieri, Stefano; Luciani, Giuseppina; Andreozzi, Roberto; Maddalena, Pasqualino; Marotta, Raffaele/titolo:Effect of surface properties of copper-modified commercial titanium dioxide photocatalysts on hydrogen production through photoreforming of alcohols/doi:10.1016%2Fj.ijhydene.2017.09.093/rivista:International journal of hydrogen energy/anno:2017/pagina_da:28349/pagina_a:28362/intervallo_pagine:28349–28362/volume:42 |
| Popis: | Deposition of copper on titanium dioxide holds great promise in producing materials with high activity in the photo-production of hydrogen by aqueous reforming of alcohols. This work aims at comparing hydrogen evolution through photoreforming of alcohols over photocatalysts prepared by in situ photodeposition of copper on three TiO2 commercial samples (P25, pure anatase, and pure rutile). The adoption of a single catalyst preparation method and experimental setup allowed to unequivocally ascribe the differences in hydrogen evolution to surface properties of the TiO2 sample tested, thus overcoming the major constraints found in the literature. The resulting samples were extensively characterized by several complementary techniques. Correlations between hydrogen production rates and physical-chemical properties of the samples are discussed. The analyses highlight the major role played by physical size and surface properties of TiO2 particles in determining the morphology, the dispersion of zero-valent copper nanoparticles on the TiO2 surface and, ultimately, the photocatalytic performances. Understanding the correlation between properties and photocatalytic response of copper-modified TiO2 nano particles acts as a remarkable lever for the future development of new TiO2-based materials exhibiting high efficiency for hydrogen generation under UV-visible light irradiation. (c) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|