Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/5217
DC Field | Value | Language |
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dc.contributor.author | Azenha, M. E. D. G. | - |
dc.contributor.author | Miguel, Maria da Graça | - |
dc.contributor.author | Formosinho, S. J. | - |
dc.contributor.author | Burrows, H. D. | - |
dc.date.accessioned | 2008-09-01T15:05:57Z | - |
dc.date.available | 2008-09-01T15:05:57Z | - |
dc.date.issued | 2001 | en_US |
dc.identifier.citation | Journal of Molecular Structure. 563-564:(2001) 439-442 | en_US |
dc.identifier.uri | https://hdl.handle.net/10316/5217 | - |
dc.description.abstract | Luminescence spectroscopy of solids at 77 K has been used to characterise the uranium(VI) species incorporated into [alpha]-alumina, [gamma]-alumina and zeolites Y and ZSM-20 by adsorption from solution and into ZSM-5 by chemical synthesis. With uranyl adsorbed from nitrate solutions onto [alpha]- and [gamma]-aluminas, the luminescence measurements show the dominant uranium species is schoepite, UO3·xH2O, in agreement with results from X-ray diffraction and Raman spectroscopy. With uranyl acetate, there are indications that a crystalline acetate species is also present. With zeolite-Y and ZSM-20, the main species is a dimer. In addition, some monomeric [UO2(H2O)5]2+ is also present. With ZSM-5, although this is not observed in X-ray diffraction, the luminescence spectrum shows the presence of a species, similar to the schoepite seen with the aluminas. It is suggested that this may be due both to closely related polymeric species, and to uranyl anions, such as [UO2(OH)4]2- and [UO2(OH)3]-. | en_US |
dc.description.uri | http://www.sciencedirect.com/science/article/B6TGS-435M5SD-2D/1/1fcff58939e013c8fdee4bba2d901a3b | en_US |
dc.format.mimetype | aplication/PDF | en |
dc.language.iso | eng | eng |
dc.rights | openAccess | eng |
dc.subject | Uranyl ion | en_US |
dc.subject | Aluminas | en_US |
dc.subject | Zeolites | en_US |
dc.subject | Adsorption | en_US |
dc.subject | Luminescence spectroscopy | en_US |
dc.title | The characterisation by luminescence spectroscopy of uranium(VI) incorporated into zeolites and aluminas | en_US |
dc.type | article | en_US |
dc.identifier.doi | 10.1016/S0022-2860(00)00829-2 | - |
uc.controloAutoridade | Sim | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | Com Texto completo | - |
item.languageiso639-1 | en | - |
crisitem.author.dept | Faculty of Sciences and Technology | - |
crisitem.author.dept | Faculty of Sciences and Technology | - |
crisitem.author.parentdept | University of Coimbra | - |
crisitem.author.parentdept | University of Coimbra | - |
crisitem.author.researchunit | CQC - Coimbra Chemistry Centre | - |
crisitem.author.researchunit | CQC - Coimbra Chemistry Centre | - |
crisitem.author.researchunit | CQC - Coimbra Chemistry Centre | - |
crisitem.author.researchunit | CQC - Coimbra Chemistry Centre | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.orcid | 0000-0002-9495-2592 | - |
crisitem.author.orcid | 0000-0002-1601-5501 | - |
crisitem.author.orcid | 0000-0001-6607-0026 | - |
crisitem.author.orcid | 0000-0003-3127-2298 | - |
Appears in Collections: | FCTUC Química - Artigos em Revistas Internacionais |
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filef74b2b44d29d4b76adfecf8c3d9b8946.pdf | 87.63 kB | Adobe PDF | View/Open |
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