The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Photodegradation of Graphene Oxide Sheets by TiO2 Nanoparticles after a Photocatalytic Reduction
Abstract
TiO 2 nanoparticles were physically attached to chemically synthesized single-layer graphene oxide nanosheets deposited between Au electrodes in order to investigate the electrical, chemical, and structural properties of the TiO 2 /graphene oxide composition exposed to UV irradiation. X-ray photoelectron spectroscopy showed that after effective photocatalytic reduction of the graphene oxide sheets by the TiO 2 nanoparticles in ethanol, the carbon content of the reduced graphene oxides gradually decreased by increasing the irradiation time, while no considerable variation was detected in the reduction level of the reduced sheets. Raman spectroscopy indicated that, at first, the photocatalytic reduction resulted in a significant increase in the graphitized sp 2 structure over the disorders in the graphene oxides. After that, as the carbon content decreased by UV irradiation, further disorders appeared in the reduced graphene oxide sheets, confirming degradation of the reduced sheets after the photocatalytic reduction. Based on the current−voltage characteristic, the optimum time for the photocatalytic reduction resulted in a sharp decrease in the electrical resistivity of the reduced graphene oxide. However, longer photocatalytic processes caused a high increase in the resistivity, due to dominating the photodegradation process over the nearly completed photocatalytic reduction.
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Citations
Cites
Two-dimensional gas of massless Dirac fermions in graphene
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Katsnelson, M. I., Grigorieva, I. V., Dubonos, S. V., & Firsov, A. A. (2005) · Nature · doi:10.1038/nature04233 · Cited by 21,611
Experimental observation of the quantum Hall effect and Berry's phase in graphene
Zhang, Y., Tan, Y.-W., Stormer, H. L., & Kim, P. (2005) · Nature · doi:10.1038/nature04235 · Cited by 13,435
Cited by
Graphene-based semiconductor photocatalysts
Xiang, Q., Yu, J., & Jaroniec, M. (2012) · Chem. Soc. Rev. · doi:10.1039/c1cs15172j · Cited by 2,730
Sher Shah, M. S. A., Park, A. R., Zhang, K., Park, J. H., & Yoo, P. J. (2012) · ACS Applied Materials & Interfaces · doi:10.1021/am301287m · Cited by 554
Visible Photocatalytic Activity Enhancement of ZnWO4 by Graphene Hybridization
Bai, X., Wang, L., & Zhu, Y. (2012) · ACS Catalysis · doi:10.1021/cs3005852 · Cited by 283
Melatonin as a powerful bio-antioxidant for reduction of graphene oxide
Esfandiar, A., Akhavan, O., & Irajizad, A. (2011) · Journal of Materials Chemistry · doi:10.1039/c1jm10151j · Cited by 275
Self-citationThakur, S., & Karak, N. (2015) · Journal of Materials Chemistry A · doi:10.1039/c5ta02162f · Cited by 64
Metadata
- Authors
- Akhavan, O., Abdolahad, M., Esfandiar, A., & Mohatashamifar, M.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-07-14
- Volume
- 114
- Issue
- 30
- Pages
- 12955-12959
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2033773110
- Cited by
- 416
- References
- 2
- FWCI
- 19.31
- Type
- journal article
- Language
- en
- Open access
- closed
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