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Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions
Open accessAbstract
The evaluation of the radiation field inside a slurry reactor constitutes a central step in the study of photocatalytic reactions. This task can be achieved by solving the radiative transfer equation (RTE) for the system under study. To solve the RTE, three optical properties of the catalyst suspensions are needed: the absorption coefficient, the scattering coefficient, and the phase function for scattering. In the present work, a novel experimental method to measure the optical properties of aqueous titanium dioxide (TiO 2 ) suspensions is proposed. The method involved diffuse reflectance and transmittance spectrophotometric measurements of the catalyst suspensions, the evaluation of the radiation field in the sample cell, and the application of a nonlinear optimization program to adjust the model predictions to the experimental data. Three commercial brands of TiO 2 were investigated: Aldrich, Degussa P25, and Hombikat UV 100.
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Cited by
Turolla, A., Piazzoli, A., Farner Budarz, J., Wiesner, M. R., & Antonelli, M. (2015) · Chemical Engineering Journal · doi:10.1016/j.cej.2015.03.004 · Cited by 40
Heinrich, J. M., Niizawa, I., Botta, F. A., Trombert, A. R., & Irazoqui, H. A. (2012) · Photochemistry and Photobiology · doi:10.1111/j.1751-1097.2012.01141.x · Cited by 22
Metadata
- Authors
- Satuf, M. L., Brandi, R. J., Cassano, A. E., & Alfano, O. M.
- Venue
- Industrial & Engineering Chemistry Research
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-07-06
- Volume
- 44
- Issue
- 17
- Pages
- 6643-6649
- ISSN
- 0888-5885 (ISSN-L)
- 1520-5045
- OpenAlex
- W2065602609
- Cited by
- 177
- References
- 0
- FWCI
- 3.91
- Type
- journal article
- Language
- en
- Open access
- green
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- Satuf, M. L., Brandi, R. J., Cassano, A. E., & Alfano, O. M. (2005). Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions. Industrial & Engineering Chemistry Research. https://doi.org/10.1021/ie050365y
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