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A Hierarchically Ordered TiO2 Hemispherical Particle Array with Hexagonal‐Non‐Close‐Packed Tops: Synthesis and Stable Superhydrophilicity Without UV Irradiation
Abstract
A hierarchical TiO 2 ordered hemispherical particle array with hexagonal‐non‐close‐packed (hncp) tops is prepared by pulsed laser deposition (PLD) using a polystyrene colloidal monolayer as a template. Compared with conventional lithography, the route presented has the advantage of low cost for producing hncp nanostructured arrays. This hierarchical particle array exhibits excellent superhydrophilicity with a water contact angle of 0° without further UV irradiation. The superhydrophilic property originates from oxygen defects or vacancies on the surface of the TiO 2 nanoparticles produced by PLD and the increased roughness of the hierarchical particle arrays. More importantly, this property is very stable for half a year and could be used in self‐cleaning surfaces and microfluidic devices.
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Citations
Cites
Haes, A. J., & Van Duyne, R. P. (2002) · Journal of the American Chemical Society · doi:10.1021/ja020393x · Cited by 2,057
Cited by
Zhang, J., Li, Y., Zhang, X., & Yang, B. (2010) · Advanced Materials · doi:10.1002/adma.201000755 · Cited by 649
Self-citationSuperhydrophilic–superoleophobic coatings
Yang, J., Zhang, Z., Xu, X., Zhu, X., Men, X., & Zhou, X. (2012) · Journal of Materials Chemistry · doi:10.1039/c2jm15987b · Cited by 406
Special oleophobic and hydrophilic surfaces: approaches, mechanisms, and applications
Wang, Y., & Gong, X. (2017) · Journal of Materials Chemistry A · doi:10.1039/c6ta10474f · Cited by 267
Metadata
- Authors
- Li, Y., Sasaki, T., Shimizu, Y., & Koshizaki, N.
- Venue
- Small
- Publisher
- Wiley
- Published
- 2008-12
- Volume
- 4
- Issue
- 12
- Pages
- 2286-2291
- ISSN
- 1613-6810 (ISSN-L)
- 1613-6829
- OpenAlex
- W2067106019
- Cited by
- 163
- References
- 1
- FWCI
- 7.66
- Type
- journal article
- Language
- en
- Open access
- closed
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- Li, Y., Sasaki, T., Shimizu, Y., & Koshizaki, N. (2008). A Hierarchically Ordered TiO2 Hemispherical Particle Array with Hexagonal‐Non‐Close‐Packed Tops: Synthesis and Stable Superhydrophilicity Without UV Irradiation. Small. https://doi.org/10.1002/smll.200800428
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