Published September 1986
| public
Journal Article
Photoinduced Reductive Dissolution of α-Fe_2O_3 by Bisulfite
- Creators
- Faust, Bruce C.
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Hoffmann, Michael R.
Chicago
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Abstract
The kinetics of the photoinduced reductive dissolution of ɑ-Fe_2O_3 by bisulfite in anoxic colloidal suspensions have been investigated. Quantum yields, Φ_(Fe(II)), as a function of wavelength for Fe(II)_(aq) production were obtained. Photochemical reactivity has been discussed in terms of the excitation of the O^(2-) to Fe^(3+) charge-transfer band of α-Fe_2O_3 and in terms of photoassisted charge-transfer reactions of Fe(III)-S(IV) surficial complexes.
Additional Information
© 1986 American Chemical Society. Received for review October 11, 1984. Revised manuscript received August 6,1985. Accepted May 5, 1986. We extend our appreciation to M. Cimolino for advice on the preparation of Reinecke's salt (K^+ form), to S. H. R. Davies for providing samples of goethite and lepidocrocite, and to D. W. Bahnemann for helpful discussions and useful criticism. This work was financially supported by the U.S. Environmental Protection Agency under Contracts R809198-01, R808086-01, and R808086-02-0. This paper was taken in part from the Ph.D. thesis of B.C.Additional details
- Alternative title
- Photoinduced reductive dissolution of .alpha.-iron oxide (.alpha.-Fe2O3) by bisulfite
- Eprint ID
- 59684
- DOI
- 10.1021/es00151a015
- Resolver ID
- CaltechAUTHORS:20150818-100952784
- Environmental Protection Agency (EPA)
- R809198-01
- Environmental Protection Agency (EPA)
- R808086-01
- Environmental Protection Agency (EPA)
- R808086-02-0
- Created
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2015-08-18Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field