Sulfate complexation of lanthanides is of great interest for predicting speciation of radionuclides in natural environments. The formation of LaSO4+(aq) in HNO3/H2SO4 aqueous solutions of low ionic strength (I) was studied by nanoelectrospray ionization mass spectrometry (nanoESI-MS). Several gaseous species containing LaSO4+ were detected. The formation constant of LaSO4+(aq) was determined an...

Down-conversion in lanthanide doped luminescent materials is a promising route to significantly enhance the energy efficiency of silicon solar cells, plasma display panels, or mercury-free lighting tubes because it results in the emission of two photons for each absorbed higher energy photon. The Gd3+ /Eu3+ ion couple shows down-conversion of vacuum-ultraviolet light into visible light with an ...

Eu3+doped Gd2O3 nanophosphor were successfully obtained by a straightforward combustion method. The crystal structure and optical characteristics investigated methods: XRD, photoluminescence spectra (PL). XRD result indicates the Gd2O3:5%Eu had cubic phase average particle size was about 32 nm. showed strong red emission with 5D0-7F2 electric dipole transition dominant. intensities of 5D0-7FJ t...

In this first exploration of europium-doped carbonated apatites the location carbonate was determined using environment model for analysis IR and NMR spectra. Europium-doped apatites, containing Eu/(Eu + Ca) mole ratios about 10%, were prepared by aqueous one-step addition syntheses. The spectra in samples are described model: A-type is assigned to channels only calcium ions (A = Ca6) or one Na...

Zinc ions play an important role in numerous crucial biological processes the human body. The ability to image function of Zn2+ would be a significant asset biomedical research for monitoring various physiopathologies dependent on its fate. To this end, we developed novel Gd3+ chelate that can selectively recognize over other abundant endogenous metal and alter paramagnetic properties. More spe...

in this research, nanoporous silica (sba-15) was physically functionalized using2-(2-nitrobenzylideneamino) guanidine compound. this functionalized sba-15 was utilized as a new sorbentfor separation and preconcentration of some lanthanide ions. inductively coupled plasma optical emissionspectrometry (icp-oes) was used as a detection technique. the preconcentration factor of the method is 100and...

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 1 wileyonlinelibrary.com through the excitation of OH vibrations.[5] On the other hand, the mechanical properties of supramolecular gels typically suffer from the relatively weak noncovalent interactions among the constituent components.[6] This drawback also limits construction of free-standing objects from the luminescent gels.[7] Herein for ...