TY - JOUR
T1 - Modification of Parylene film-coated glass with TiO2 nanoparticles and its photocatalytic properties
AU - Perkas, Nina
AU - Amirian, Galina
AU - Girshevitz, Olga
AU - Charmet, Jerome
AU - Laux, Edith
AU - Guibert, Geoffroy
AU - Keppner, Herbert
AU - Gedanken, Aharon
PY - 2011/2/15
Y1 - 2011/2/15
N2 - A titania film was deposited on Parylene-coated glass by a one-step, ultrasound-assisted procedure. The TiO2 nanoparticles formed during the sonochemical hydrolysis of Ti(i-OPr)4 were thrown to the surface and strongly attached to the Parylene substrate. By using different solvents (water, ethanol or their mixture) and reagent concentrations, the thickness, uniformity and crystallinity of the deposited layer were regulated. PVP was used to stabilize the highly homogeneous distribution of TiO2 nanocrystals on the Parylene surface. The morphology and structure of the coated films were characterized by physical and chemical methods such as: X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), atomic force microscopy (AFM), Rutherford backscattering spectrometry (RBS), and optical spectroscopy. The photocatalytic activity of the titania-modified Parylene film in the photo discoloration of methylene blue was demonstrated. The experimental results revealed a correlation between the uniformity of the nanostructured anatase titania film and its photocatalytic properties.
AB - A titania film was deposited on Parylene-coated glass by a one-step, ultrasound-assisted procedure. The TiO2 nanoparticles formed during the sonochemical hydrolysis of Ti(i-OPr)4 were thrown to the surface and strongly attached to the Parylene substrate. By using different solvents (water, ethanol or their mixture) and reagent concentrations, the thickness, uniformity and crystallinity of the deposited layer were regulated. PVP was used to stabilize the highly homogeneous distribution of TiO2 nanocrystals on the Parylene surface. The morphology and structure of the coated films were characterized by physical and chemical methods such as: X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), atomic force microscopy (AFM), Rutherford backscattering spectrometry (RBS), and optical spectroscopy. The photocatalytic activity of the titania-modified Parylene film in the photo discoloration of methylene blue was demonstrated. The experimental results revealed a correlation between the uniformity of the nanostructured anatase titania film and its photocatalytic properties.
KW - Nanoparticles
KW - Parylene
KW - Photocatalysis
KW - Sonochemistry
KW - TiO
UR - http://www.scopus.com/inward/record.url?scp=78650946414&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2010.11.034
DO - 10.1016/j.surfcoat.2010.11.034
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AN - SCOPUS:78650946414
SN - 0257-8972
VL - 205
SP - 3190
EP - 3197
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
IS - 10
ER -