Interfacial Water Structure at As-Prepared and UV-Induced Hydrophilic TiO2 Surfaces Studied by Sum Frequency Generation Spectroscopy and Quartz Crystal Microbalance

The interfacial water structures at surfaces of an as-prepared TiO2 and of the TiO2 after UV irradiation were investigated by sum frequency generation (SFG) spectroscopy and quartz crystal microbalance (QCM). It was shown that UV illumination led to an increase in the amount not only of adsorbed wat...

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Bibliographic Details
Published in:The journal of physical chemistry. B 2004-12, Vol.108 (50), p.19086-19088
Main Authors: Uosaki, Kohei, Yano, Takanobu, Nihonyanagi, Satoshi
Format: Article
Language:English
Online Access:Get full text
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Summary:The interfacial water structures at surfaces of an as-prepared TiO2 and of the TiO2 after UV irradiation were investigated by sum frequency generation (SFG) spectroscopy and quartz crystal microbalance (QCM). It was shown that UV illumination led to an increase in the amount not only of adsorbed water as a whole but also of the ordered adsorbed water on the TiO2 surface, confirming the increase of hydrophilicity of the surface.
ISSN:1520-6106
1520-5207
DOI:10.1021/jp045173f