The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
New Insight for Enhanced Photocatalytic Activity of TiO2 by Doping Carbon Nanotubes: A Case Study on Degradation of Benzene and Methyl Orange
Abstract
A carbon nanotubes (CNT)/TiO 2 nanocomposite photocatalyst has been prepared by a simple impregnation method, which is used, for the first time, for gas-phase degradation of benzene. It is found that the as-prepared CNT/TiO 2 nanocomposite exhibits an enhanced photocatalytic activity for benzene degradation, as compared with that over commerical titania (Degussa P25). A similar phenomenon has also been found for liquid-phase degradation of methyl orange. The characterization of photocatalysts by a series of joint techniques, including X-ray diffraction, transmission electron microscopy, ultraviolet/visible (UV/vis) diffuse reflectance spectra, and photoluminescence spectra, discloses that CNT has two kinds of crucial roles in enhancement of photocatalytic activity of TiO 2 . One is to act as an electron reservoir, which helps to trap electrons emitted from TiO 2 particles due to irradiation by UV light, therefore hindering electron−hole pairs recombination. The other is to act as a dispersing template or support to control the morphology of TiO 2 particles in the CNT/TiO 2 nanocomposite, and this important role was neglected in previous studies. Accordingly, a reasonable model is proposed to expain the role of CNT in CNT/TiO 2 composites as a photocatalyst for degradation of organic pollutants.
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Cites
Environmental applications of semiconductor photocatalysis
Hoffmann, M. R., Martin, S. T., Choi, W., & Bahnemann, D. W. (1995) · Chemical Reviews · doi:10.1021/cr00033a004 · Cited by 18,495
Photocatalysis on TiO2 Surfaces: Principles, Mechanisms, and Selected Results
Linsebigler, A. L., Lu, G., & Yates, J. T. (1995) · Chemical Reviews · doi:10.1021/cr00035a013 · Cited by 11,575
Cited by
Nanocomposites of TiO2 and Reduced Graphene Oxide as Efficient Photocatalysts for Hydrogen Evolution
Fan, W., Lai, Q., Zhang, Q., & Wang, Y. (2011) · The Journal of Physical Chemistry C · doi:10.1021/jp2008804 · Cited by 632
Synthesis of M@TiO2 (M = Au, Pd, Pt) Core–Shell Nanocomposites with Tunable Photoreactivity
Zhang, N., Liu, S., Fu, X., & Xu, Y.-J. (2011) · The Journal of Physical Chemistry C · doi:10.1021/jp2009989 · Cited by 594
Self-citationYang, M.-Q., Zhang, N., & Xu, Y.-J. (2013) · ACS Applied Materials & Interfaces · doi:10.1021/am3029798 · Cited by 365
Self-citationXiao, F.-X. (2012) · ACS Applied Materials & Interfaces · doi:10.1021/am302462d · Cited by 328
Dai, X., Xie, M., Meng, S., Fu, X., & Chen, S. (2014) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2014.04.035 · Cited by 288
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Metadata
- Authors
- Xu, Y.-J., Zhuang, Y., & Fu, X.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-01-22
- Volume
- 114
- Issue
- 6
- Pages
- 2669-2676
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2065019955
- Cited by
- 541
- References
- 2
- FWCI
- 21.50
- Type
- journal article
- Language
- en
- Open access
- closed
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