The DOI matches its Crossref record; 43 of the 43 references it cites were found in a registry or an index.
Semiconductor−Metal Composite Nanostructures. To What Extent Do Metal Nanoparticles Improve the Photocatalytic Activity of TiO2 Films?
Abstract
Noble metal particles of Au, Pt, and Ir were deposited on nanostructured TiO 2 film using an electrophoretic approach. The nanocomposite films were characterized by UV-absorption and atomic force microscopy (AFM). The deposition of tetraoctylammonium bromide (TOAB)-capped metal nanoparticles on TiO 2 films improved the photocurrent generation and induced a shift in the apparent flat band potential. The TiO 2 films modified with TOAB-capped metal nanoparticles were less prone to the electron scavenging by the oxygen in solution. Improved photoelectrochemical performance of semiconductor−metal composite film is attributed to the shift in quasi-Fermi level of the composite to more negative potentials. Continuous irradiation of the composite films over a long period causes photocurrent to decrease as the semiconductor−metal interface undergoes chemical changes. The role of semiconductor−metal composite films in improving the rate of photocatalytic degradation of an azo dye is also discussed.
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Metadata
- Authors
- Subramanian, V., Wolf, E., & Kamat, P. V.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2001-10-23
- Volume
- 105
- Issue
- 46
- Pages
- 11439-11446
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2030911848
- Cited by
- 916
- References
- 43
- FWCI
- 18.02
- Type
- journal article
- Language
- en
- Open access
- closed
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- Subramanian, V., Wolf, E., & Kamat, P. V. (2001). Semiconductor−Metal Composite Nanostructures. To What Extent Do Metal Nanoparticles Improve the Photocatalytic Activity of TiO2 Films? The Journal of Physical Chemistry B. https://doi.org/10.1021/jp011118k
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