Abstract
Abstract Ultra-thin WO3/TiO2 bilayer thin films with various amounts of WO3 materials were deposited on glass substrates using RF reactive magnetron sputtering in an attempt to enhance the photocatalytic activity and/or photoinduced hydrophilic conversion of titania-based materials. AFM images reveal changes in surface morphology on increasing WO3 film thickness. Core level and valence band XPS spectra suggest band gap narrowing with the increase of tungsten atomic concentration in the bilayer structure. Both hydrophilic conversion and the photocatalytic activity of the surface were quantified via contact angle measurements. The latter process involved monitoring the contact angle changes induced by the decomposition of an additional oleic acid overlayer, as an effect of UV light irradiation. All the investigated samples exhibit similar photocatalytic features and close values for the hydrophilic conversion rates.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
