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Martyanov IN, Savinov EN, Klabunde KJ. Influence of solution composition and ultrasonic treatment on optical spectra of TiO2 aqueous suspensions. J Colloid Interface Sci. 2003;267(1):111-6doi: 10.1016/s0021-9797(03)00678-7.
Martyanov, I. N., Savinov, E. N., & Klabunde, K. J. (2003). Influence of solution composition and ultrasonic treatment on optical spectra of TiO2 aqueous suspensions. Journal of colloid and interface science, 267(1), 111-6. https://doi.org/10.1016/s0021-9797(03)00678-7
Martyanov, I N, et al. "Influence of solution composition and ultrasonic treatment on optical spectra of TiO2 aqueous suspensions." Journal of colloid and interface science vol. 267,1 (2003): 111-6. doi: https://doi.org/10.1016/s0021-9797(03)00678-7
Martyanov IN, Savinov EN, Klabunde KJ. Influence of solution composition and ultrasonic treatment on optical spectra of TiO2 aqueous suspensions. J Colloid Interface Sci. 2003 Nov 01;267(1):111-6. doi: 10.1016/s0021-9797(03)00678-7. PMID: 14554173.
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J Colloid Interface Sci. 2003 Nov 01;267(1):111-6. doi: 10.1016/s0021-9797(03)00678-7.

Influence of solution composition and ultrasonic treatment on optical spectra of TiO2 aqueous suspensions.

Journal of colloid and interface science

I N Martyanov, E N Savinov, K J Klabunde

Affiliations

  1. Department of Chemistry, Kansas State University, Manhattan, KS 66506, USA. [email protected]

PMID: 14554173 DOI: 10.1016/s0021-9797(03)00678-7

Abstract

Investigation of TiO(2) aqueous suspensions has shown that their optical spectra can be unstable, with instability not related to precipitation or adherence of TiO(2) particles to the vessel walls. Increase of ionic strength of the suspension as well as neutralization of charged TiO(2) particles via pH adjustment accelerates the optical density drop. Vice versa, increasing the charge of TiO(2) particles via shifting pH in acidic or basic directions stabilizes the suspension's optical spectra, and ultrasonic treatment promotes optical density recovery. The observed behavior is attributed to alteration in the size of the suspension aggregates.

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