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Preparation, Photocatalytic Activities, and Dye-Sensitized Solar-Cell Performance of Submicron-Scale TiO2 Hollow Spheres
Abstract
We prepared submicron-scale spherical hollow particles of anatase TiO2 by using a polystyrene-bead template. The obtained particles were very uniform in size, with a diameter of 490 nm and a shell thickness of 30 nm. The Brunauer-Emmett-Teller surface area measurements revealed a large value of 70 m2/g. The photocatalytic property was investigated by the complete decomposition of gaseous isopropyl alcohol under UV irradiation. It was indicated that the activity of the hollow spheres was 1.8 times higher than that of the conventional P25 TiO2 nanoparticles with a diameter of 30 nm. Furthermore, we fabricated a dye-sensitized solar cell (DSC) using an electrode of the TiO2 hollow spheres, and examined the photovoltaic performance under simulated sunlight. Although the per-area efficiency was rather low (1.26%) because of a low area density of TiO2 on the electrode, the per-weight efficiency was 2.5 times higher than those of the conventional DSCs of TiO2.
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Cited by
Recent developments in photocatalytic water treatment technology: A review
Chong, M. N., Jin, B., Chow, C. W. K., & Saint, C. (2010) · Water Research · doi:10.1016/j.watres.2010.02.039 · Cited by 5,386
TiO2 photocatalysis: Design and applications
Nakata, K., & Fujishima, A. (2012) · Journal of Photochemistry and Photobiology C: Photochemistry Reviews · doi:10.1016/j.jphotochemrev.2012.06.001 · Cited by 3,651
Multi-shelled hollow micro-/nanostructures
Qi, J., Lai, X., Wang, J., Tang, H., Ren, H., Yang, Y., Jin, Q., Zhang, L., Yu, R., Ma, G., et al. (2015) · Chemical Society Reviews · doi:10.1039/c5cs00344j · Cited by 676
Yu, J., Fan, J., & Lv, K. (2010) · Nanoscale · doi:10.1039/c0nr00427h · Cited by 469
Recent development and future prospects of TiO2photocatalysis
Peiris, S., de Silva, H. B., Ranasinghe, K. N., Bandara, S. V., & Perera, I. R. (2021) · Journal of the Chinese Chemical Society · doi:10.1002/jccs.202000465 · Cited by 346
Metadata
- Authors
- Kondo, Y., Yoshikawa, H., Awaga, K., Murayama, M., Mori, T., Sunada, K., Bandow, S., & Iijima, S.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-12-19
- Volume
- 24
- Issue
- 2
- Pages
- 547-550
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2027230010
- Cited by
- 230
- References
- 0
- FWCI
- 8.42
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kondo, Y., Yoshikawa, H., Awaga, K., Murayama, M., Mori, T., Sunada, K., Bandow, S., & Iijima, S. (2008). Preparation, Photocatalytic Activities, and Dye-Sensitized Solar-Cell Performance of Submicron-Scale TiO2 Hollow Spheres. Langmuir. https://doi.org/10.1021/la702157r
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