Synthesis and Study of the Structural, Optical and Photocatalytic Characteristics of V2O5/TiO2 Nanocomposites

Authors Т.A. Khalyavka1, S.V. Camyshan1, N.N. Tsyba1, S.N. Scherbakov2

1 Institute for sorption and problems of endoeсology, NAS of Ukraine, 13, General Naumov St., 03164 Kyiv, Ukraine

2 M.G. Kholodny Institute of Botany, NAS of Ukraine, 2, Tereshenkivska St., MSP-1, 01601 Kyiv, Ukraine

Issue Volume 8, Year 2016, Number 2
Dates Received 22 February 2016; revised manuscript received 09 June 2016; published online 21 June 2016
Citation Т.A. Khalyavka, S.V. Camyshan, N.N. Tsyba, S.N. Scherbakov, J. Nano- Electron. Phys. 8 No 2, 02035 (2016)
DOI 10.21272/jnep.8(2).02035
PACS Number(s) 82.50.m, 82.65. + r
Keywords Vanadium oxide (2) , Titanium dioxide (4) , Nanocomposites (9) , SEM (112) , TEM (76) , EDS (5) , BET (11) , XRD (90) , UV-Vis Spectroscopy, Photocatalysis (4) .
Annotation Mesoporous V2O5/TiO2 nanocomposites were obtained by citrate method. The prepared materials were characterized by XRD, SEM, EDS, TEM, BET and UV-Vis spectroscopy. The composites presented typical IUPAC IV isotherms with type H1 hysteresis loops, revealing the mesoporous structure. It was observed that increasing of V2O5 in composites leads to an increase of crystallite size, lattice parameters, the average pore radius and reduces the specific surface area and average pore volume. A red shift of the absorption edge and the reduced band gap were observed for V2O5/TiO2 nanocomposites. Composite samples showed enhancement of the photocatalytic activity in the destruction of rhodamine under UV irradiation as compared to pure TiO2.

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