The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Role of Surface/Interfacial Cu2+ Sites in the Photocatalytic Activity of Coupled CuO−TiO2 Nanocomposites
Abstract
Coupled CuO−TiO 2 nanocomposite photocatalysts were prepared by a deposition precipitation method and were characterized with a variety of techniques. Electron paramagnetic resonance (EPR) spectroscopy was employed to study the local structures of surface/interfacial Cu 2+ sites using Cu 2+ as a sensitive paramagnetic probe. The addition of bulk CuO to TiO 2 led to decreased photocatalytic efficiency in the degradation of methylene blue. However, doping with a very small amount of CuO (0.1 wt % copper loading) significantly enhanced the photocatalytic activity of TiO 2 . EPR study of the TiO 2 surface revealed the presence of both highly dispersed CuO clusters and substitutional Cu 2+ sites (Ti−O−Cu linkages) at 0.1 wt % copper loading. The data suggest that the Ti−O−Cu linkages contributed to the improved photooxidative activity of the 0.1% CuO−TiO 2 nanocomposite. In contrast, at higher loadings the bulk form of CuO created charge recombination centers lowering the photoactivity of the composites.
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Cites
The surface science of titanium dioxide
Diebold, U. (2003) · Surface Science Reports · doi:10.1016/s0167-5729(02)00100-0 · Cited by 7,944
Surface Science Studies of the Photoactivation of TiO 2 New Photochemical Processes
Thompson, T. L., & Yates, J. T. (2006) · Chemical Reviews · doi:10.1021/cr050172k · Cited by 2,064
Explaining the Enhanced Photocatalytic Activity of Degussa P25 Mixed-Phase TiO 2 Using EPR
Hurum, D. C., Agrios, A. G., Gray, K. A., Rajh, T., & Thurnauer, M. C. (2003) · The Journal of Physical Chemistry B · doi:10.1021/jp0273934 · Cited by 2,015
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Cited by
Advanced Nanoarchitectures for Solar Photocatalytic Applications
Kubacka, A., Fernández-García, M., & Colón, G. (2012) · Chemical Reviews · doi:10.1021/cr100454n · Cited by 2,373
Hydrogen from photo-catalytic water splitting process: A review
Ahmad, H., Kamarudin, S. K., Minggu, L. J., & Kassim, M. (2015) · Renewable and Sustainable Energy Reviews · doi:10.1016/j.rser.2014.10.101 · Cited by 911
Modified TiO 2 photocatalyst for CO 2 photocatalytic reduction: An overview
Abdullah, H., Khan, M. M. R., Ong, H. R., & Yaakob, Z. (2017) · Journal of CO2 Utilization · doi:10.1016/j.jcou.2017.08.004 · Cited by 341
Zhu, Y.-P., Li, M., Liu, Y.-L., Ren, T.-Z., & Yuan, Z.-Y. (2014) · The Journal of Physical Chemistry C · doi:10.1021/jp502677h · Cited by 329
Luo, L., Gong, Z., Xu, Y., Ma, J., Liu, H., Xing, J., & Tang, J. (2022) · Journal of the American Chemical Society · doi:10.1021/jacs.1c09141 · Cited by 298
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Dhandole, L. K., Kim, S.-G., Bae, H.-S., Ryu, H. I., Chung, H.-S., Seo, Y.-S., Cho, M., Shea, P. J., & Jang, J. S. (2020) · Environmental Research · doi:10.1016/j.envres.2019.108651 · Cited by 45
Metadata
- Authors
- Li, G., Dimitrijevic, N. M., Chen, L., Rajh, T., & Gray, K. A.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-11-08
- Volume
- 112
- Issue
- 48
- Pages
- 19040-19044
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2042592891
- Cited by
- 389
- References
- 3
- FWCI
- 5.85
- Type
- journal article
- Language
- en
- Open access
- closed
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