Petru Păşcuţă

26-29 EFECTELE CODOPĂRII Gd3+:Ag ASUPRA STICLELOR ŞI VITROCERAMICILOR DIN SISTEMUL (1-x-y)[Bi2O3∙PbO]∙xAg2O∙yGd2O3

Această intrare a fost publicată în 2014 Revista Volumul 26 și etichetată Eugen Culea Niculina TOTHĂZAN Petru Păşcuţă Simona Rada la de

EFFECT OF Gd3+: Ag CODOPING ON
THE GLASSES AND VITROCERAMICS OF THE
(1-x-y)[Bi2O3∙PbO]∙xAg2O∙yGd2O3 SYSTEM
Bismuth lead glasses coped with Gd3+: Ag were prepared by the
conventional melt – quenching method. The structure of these materials was
studied by X-ray diffraction (XRD) and FTIR spectroscopy. FTIR spectroscopy
data show that BiO3, BiO6, PbO3 and PbO4 are the most important structural
units in the studied system. These data also made it possible to obtain essential
information concerning the arrangement of the structural units in the studied
glasses and glass ceramics. XRD diffraction shows the presence of δ Bi2O3 and
PbO1.44 crystalline phases.
Keywords: bottles, vitro-ceramic, MAINLY REALISED FTIR
spectroscopy
Cuvinte cheie: sticle, vitro-ceramice, XRD, spectroscopie FTIR
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26-26 RECICLAREA DEŞEURILOR PROVENITE DE LA BATERIILE AUTO ÎN STICLE PE BAZĂ DE PLUMB

Această intrare a fost publicată în 2014 Revista Volumul 26 și etichetată Elena Maria PICĂ Eugen Culea Laurenţiu Pop Liviu Bolunduţ Loredana Rus Mioara Zagrai Petru Păşcuţă Simona Rada Tiberiu RUSU la de

THE RECICLYNG OF THE WASTES PROVIDED
OF AUTO BATTERIES IN LEAD GLASSES
The purpose of this paper was i) to obtained the lead glasses with the
xPb∙(100-x)PbO2 composition where x = 0-15mol % Pb by melt quenching
method and ii) to characterized of the structural and optical properties of the
obtained glasses by investigations of FTIR and UV-VIS spectroscopy in order
to possible applications in the auto battery recycling.
FTIR data show that the accommodation of the host glass with excess
of metallic lead was possible by the conversion of some [PbO6] octahedral
structural units into [PbOn] structural units where n=3 and 4. Then, the increase
of the metallic lead high content in the matrix network will produce to the
deficiency of non-bridging oxygen’s and the formation of UV-VIS bands in
region centred at about 300nm which can be attributed to the electronic
transitions of the lead ions.
Keywords: lead-based bottles, car batteries, spectroscopy UV-VIS and
IR, recycling
Cuvinte cheie: sticle pe bază de plumb, baterii auto, spectroscopie IR
şi UV-VIS, reciclare
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