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1589270 
Journal Article 
Novel photocatalytic TiO2 coatings produced by HVOF thermal spraying process 
Bozorgtabar, M; Rahimipour, M; Salehi, M 
2010 
1 
Materials Letters
ISSN: 0167-577X
EISSN: 1873-4979 
64 
10 
1173-1175 
WOS:000277325700015 
Titanium dioxide coatings were deposited by high velocity
oxy-fuel spraying (HVOF) using agglomerated nano-powders. Different spraying parameters were used
to determine their influences on the crystallite structure and photocatalytic performance of the
coatings. The as-sprayed TiO2 coatings were characterized by X-ray diffraction (XRD) and
transmission electron microscopy (TEM). Photocatalytic efficiency of the elaborated samples was
evaluated from the conversion rate of ethanol. A high anatase content of 80% by volume was
achieved for the coating deposited by a 120 ml/min fuel flow rate. The results show that the as-
sprayed TiO2 HVOF coatings were highly photocatalytically reactive for the degradation of
ethanol. (C) 2010 Elsevier B.V. All rights reserved. 
TiO2; Thermal spray; HVOF; Photocatalyst; Nanomaterials; Thin films