Luminescence quenching of UO2(NO3)(2)center dot 2TBP in supercritical fluid CO2

Authors
Addleman, RS Wai, CM
Citation
Rs. Addleman et Cm. Wai, Luminescence quenching of UO2(NO3)(2)center dot 2TBP in supercritical fluid CO2, PCCP PHYS C, 1(5), 1999, pp. 783-790
Citations number
57
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
PCCP PHYSICAL CHEMISTRY CHEMICAL PHYSICS
ISSN journal
14639076 → ACNP
Volume
1
Issue
5
Year of publication
1999
Pages
783 - 790
Database
ISI
SICI code
1463-9076(19990301)1:5<783:LQOUD2>2.0.ZU;2-E
Abstract
The luminescence quenching of UO2(NO3). 2TBP in supercritical fluid (ScF) C O2 has been examined with time resolved laser induced fluorescence (TRLIF). Quenching mechanisms for the uranyl complex with respect to ScF compositio n, pressure and temperature have been identified. A description of pressure quenching in ScF has been shown to require both the bimolecular collisiona l dynamics associated with a gas phase as well as the viscosity effects exp ected from a liquid phase.