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TiO2 photoactivity in vis and UV light: The influence of calcination temperature and surface properties

✍ Scribed by Paulina Górska; Adriana Zaleska; Ewa Kowalska; Tomasz Klimczuk; Janusz W. Sobczak; Ewa Skwarek; Władysław Janusz; Jan Hupka


Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
803 KB
Volume
84
Category
Article
ISSN
0926-3373

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Wettability of sol-gel TiO 2 film surfaces has been studied by following the H 2 O contact angle (θ) as functions of illumination time and subsequent dark storage time. Upon illumination of the TiO 2 surface (λ ex > 300 nm), the value of θ rapidly decreased to reach approximately zero (photoprocess)