Novel fluorescent europium
chelate-doped silica nanoparticles: preparation, characterization and time-resolved fluorometric application.
In the sorption modeling, it was assumed that (a) a monodentate complex is formed by the interaction of a europium
species in solution with only a single surface site and (b) a bidentate complex is formed when a europium
species in solution interacts with two surface sites.
At shorter [Eu.sup.3+]-AgNP distance dipole-dipole interactions become significant resulting in decrease of europium
ions luminescence intensity [43,44].
The calibration curve for two neutral europium
peaks (Eu-I) 462.6 nm and (Eu-I) 459.3 nm for ionic europium
peak (Eu-II) 459.2 nm and (Eu II) 420.4 nm line in shown in figure 7.
As soon as the stage BC is characterized by the formation of bitumoids , they must be the main europium
No systematic study has yet been reported on the structural and optical characteristics of europium
[(2,2'-bipyri-dine-N,N-dioxide).sub.2][([NO.sub.3]).sub.3] complex-doped PMMA system.
Given the similarities between europium
and uranium ions, team members think the effect could be used in nuclear waste processing.
The red color in TV screens comes from europium
and the catalytic converter in your car's exhaust system contains cerium and lanthanum.
This phenomenon most recently made news with the soaring costs of compact fluorescent light bulbs--up 37 percent in price so far this year, according to The New York Times--which depend on the rare earth metal europium
The phosphors used in color televisions and other displays with cathode-ray tubes get their brilliant reds from europium
The rare earth sector covers companies with operations involving exploration, extraction, transport, processing or any other business involving any of the following 17 rare earth elements: Scandium, Yttrium, Lanthanum, Lutetium, Ytterbium, Thulium, Erbium, Holmium, Dysprosium, Terbium, Gadolinium, Europium
, Samarium, Promethium, Neodymium, Praseodymium, and Cerium.
The 17 rare earth metals, with exotic names like lanthanum and europium
, form unusually strong lightweight materials and are used in a wide range of applications including high-tech and defence products, car engines and clean energy.