Photoassisted Degradation of Dye Pollutants. V. Self-Photosensitized Oxidative Transformation of <i>Rhodamine B</i> under Visible Light Irradiation in Aqueous TiO<sub>2</sub> Dispersions

Wu, Taixing; Liu, Guangming; Zhao, Jincai; Hidaka, Hisao; Serpone, Nick

doi:10.1021/jp980922c

Public

Photoassisted Degradation of Dye Pollutants. V. Self-Photosensitized Oxidative Transformation of Rhodamine B under Visible Light Irradiation in Aqueous TiO2 Dispersions

Published in The Journal of Physical Chemistry B • Jul 1, 1998

Authors:

Taixing Wu

Guangming Liu

Jincai Zhao

Abstract

Chemical oxygen demand (CODCr) and proton NMR, UV−vis, and spin trapping EPR spectroscopic evidence is presented to demonstrate the inverse photosensitized oxidative transformation of tetraethylated rhodamine (RhB) under visible illumination of aqueous titania dispersions. Both de-ethylation and oxi...

Subject

Photochemistry

Chemistry

Rhodamine B

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