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ZrO2-Modified Mesoporous Nanocrystalline TiO2-xNx as Efficient Visible Light Photocatalysts
Abstract
Mesoporous nanocrystalline TiO2-xNx and TiO2-xNx/ZrO2 visible-light photocatalysts have been prepared by a sol-gel method. The photocatalysts were characterized by XRD, N2 adsorption-desorption, TEM, XPS, UV/Vis, and IR spectroscopy. The photocatalytic activity of the samples was evaluated by the decomposition of ethylene in air under visible light (lambda > 450 nm) illumination. Results revealed that nitrogen was doped into the lattice of TiO2 by the thermal treatment of NH3-adsorbed TiO2 hydrous gels, converting the TiO2 into a visible-light responsive catalyst. The introduction of ZrO2 into TiO2-xNx considerably inhibits the undesirable crystal growth during calcination. Consequently, the ZrO2-modified TiO2-xNx displays higher porosity, higher specific surface area, and an improved thermal stability over the corresponding unmodified TiO2-xNx samples.
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Cites
Catalytic nanoarchitectures—The importance of nothing and the unimportance of periodicity
Rolison, D. R. (2003) · Science · doi:10.1126/science.1082332 · Cited by 1,037
Cited by
Volatile organic compounds in indoor environment and photocatalytic oxidation: state of the art
Wang, S., Ang, H. M., & Tade, M. O. (2007) · Environment International · doi:10.1016/j.envint.2007.02.011 · Cited by 678
Development of modified N doped TiO2 photocatalyst with metals, nonmetals and metal oxides
Zhang, J., Wu, Y., Xing, M., Leghari, S. A. K., & Sajjad, S. (2010) · Energy & Environmental Science · doi:10.1039/b927575d · Cited by 658
A red anatase TiO2 photocatalyst for solar energy conversion
Liu, G., Yin, L.-C., Wang, J., Niu, P., Zhen, C., Xie, Y., & Cheng, H.-M. (2012) · Energy & Environmental Science · doi:10.1039/c2ee22930g · Cited by 409
Yu, J., Liu, S., & Yu, H. (2007) · Journal of Catalysis · doi:10.1016/j.jcat.2007.03.032 · Cited by 371
Self-citationSubash, B., Krishnakumar, B., Swaminathan, M., & Shanthi, M. (2013) · Langmuir · doi:10.1021/la303842c · Cited by 355
Metadata
- Authors
- Wang, X., Yu, J. C., Chen, Y., Wu, L., & Fu, X.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2006-02-25
- Volume
- 40
- Issue
- 7
- Pages
- 2369-2374
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2316812418
- Cited by
- 228
- References
- 1
- FWCI
- 10.74
- Type
- journal article
- Language
- en
- Open access
- closed
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