http://www.cnr.it/ontology/cnr/individuo/prodotto/ID207712
Synthesis and characterization of nitrogen-doped TiO2 nanoparticles prepared by sol-gel method (Articolo in rivista)
- Type
- Label
- Synthesis and characterization of nitrogen-doped TiO2 nanoparticles prepared by sol-gel method (Articolo in rivista) (literal)
- Anno
- 2012-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1007/s10971-012-2756-0 (literal)
- Alternative label
V. Caratto1-2, L. Setti1-2, ? S. Campodonico ?1, M. M. Carnasciali1, ? M. Ferretti1-2 (2012)
Synthesis and characterization of nitrogen-doped TiO2 nanoparticles prepared by sol-gel method
in Journal of sol-gel science and technology
(literal)
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- V. Caratto1-2, L. Setti1-2, ? S. Campodonico ?1, M. M. Carnasciali1, ? M. Ferretti1-2 (literal)
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- 1 Dipartimento di Chimica e Chimica Industriale, Universita` di
Genova, Via Dodecaneso 31, 16146 Genoa, Italy
1-2 CNR-SPIN, Corso Perrone 24, 16156 Genoa, Italy (literal)
- Titolo
- Synthesis and characterization of nitrogen-doped TiO2 nanoparticles prepared by sol-gel method (literal)
- Abstract
- The N-doped TiO2 has been synthesized by
sol-gel method, using titanium isopropoxide, isopropanol
and an aqueous solution of ammonia with ratio 2:1:10. The
concentrations used for the NH3 aqueous solution were 3,
7, 10 and 15 %. The samples have been analysed by X-ray
diffraction, electron microscopy (SEM and TEM) thermogravimetric
analysis (TGA), differential scanning calorimetry
(DSC), micro-Raman spectroscopy and diffuse
reflectivity. TEM, SEM, DSC and TGA showed that the
morphology is influenced by the presence of N3- ions but
not by the concentration of the solution. Instead reflectance
gave us a relation between values of the energy gap and the
concentration of N3- ions: the gap between valence and
conduction band lowers as the concentration of NH3 in the
starting solution increases. From these results we can say
that the properties of the material have been tuned by
doping with nitrogen ions because the particles absorb
more light in the visible range, and this is important for
photovoltaic and photocatalytic applications. (literal)
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