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Preparation of Transparent Particulate MoO3/TiO2 and WO3/TiO2 Films and Their Photocatalytic Properties
Abstract
By monolayer coverage of highly acidic semiconductors, such as MoO 3 and WO 3 on the surface of TiO 2 nanoparticles (Degussa P25), the stability of colloidal suspensions in aqueous solution can be greatly improved. The average diameter of agglomerated MoO 3 /TiO 2 and WO 3 /TiO 2 particles in aqueous suspension is only 85−110 nm, respectively, which is about one-fifth to one-fourth of that of pure TiO 2 suspension. The optically transparent photocatalytic films have been prepared with deposition of these colloidal suspensions. The colloidal particles in aqueous solution and the prepared transparent photocatalytic films were characterized with TEM, SEM, AFM, and other spectroscopic techniques. It has also been found that the photocatalytic activity of WO 3 /TiO 2 film is 2.8−3 times that of pure TiO 2 film in decomposing gas-phase 2-propanol, while MoO 3 /TiO 2 film is less effective.
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Citations
Cited by
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Gupta, S. M., & Tripathi, M. (2011) · Chinese Science Bulletin · doi:10.1007/s11434-011-4476-1 · Cited by 1,270
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Zhang, Z., Shao, C., Li, X., Zhang, L., Xue, H., Wang, C., & Liu, Y. (2010) · The Journal of Physical Chemistry C · doi:10.1021/jp100262q · Cited by 370
Metadata
- Authors
- Song, K. Y., Park, M. K., Kwon, Y. T., Lee, H. W., Chung, W. J., & Lee, W. I.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2001-06-23
- Volume
- 13
- Issue
- 7
- Pages
- 2349-2355
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W2322708922
- Cited by
- 243
- References
- 0
- FWCI
- 7.72
- Type
- journal article
- Language
- en
- Open access
- closed
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- Song, K. Y., Park, M. K., Kwon, Y. T., Lee, H. W., Chung, W. J., & Lee, W. I. (2001). Preparation of Transparent Particulate MoO3/TiO2 and WO3/TiO2 Films and Their Photocatalytic Properties. Chemistry of Materials. https://doi.org/10.1021/cm000858n
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