Effects of the co-addition of Zn and sodium dodecylbenzenesulfonate on photocatalytic activity and wetting performance of anatase TiO2 nanoparticle films |
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| Authors: | Yichun Qu Yunbo Luan |
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| Affiliation: | Key Laboratory of Functional Inorganic Materials Chemistry (Heilongjiang University), Ministry of Education, School of Chemistry and Materials Science, Harbin 150080, PR China |
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| Abstract: | In this paper, doped and undoped anatase TiO2 nanoparticle films on indium tin oxide glasses have been fabricated by spin coating sols containing Zn2+ or Zn2+ and sodium dodecylbenzenesulfonate (DBS), respectively. The effects of the co-addition of Zn2+ and DBS on the photocatalysis performance and wetting properties of the resulting TiO2 nanoparticle films were investigated. The results showed that the addition of Zn2+ improved both the photocatalytic activity and the hydrophilicity, which was attributed to surface oxygen vacancies. The co-addition of Zn2+ and DBS resulted in an important increase of the surface roughness, resulting in films showing a superhydrophilic behavior. However, the photocatalytic activity was slightly decreased by co-adding Zn2+ and DBS. The DBS addition resulted in changes in the surface microstructure of the TiO2 films, changing the photocatalytic activity and wetting performance. |
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| Keywords: | TiO2 Nanosized film Surface microstructure Photocatalysis Wetting |
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