Fluorescence analysis of Bisphenol A photolysis under exposure to excilamps

E. N. Bocharnikova; O. N. Tchaikovskaya; V. S. Chaidonova; J. Gomez; M. Gomez; M. Murcia

doi:10.1117/12.2554957

11 December 2019 Fluorescence analysis of Bisphenol A photolysis under exposure to excilamps

E. N. Bocharnikova, O. N. Tchaikovskaya, V. S. Chaidonova, J. Gomez, M. Gomez, M. Murcia

Proceedings Volume 11322, XIV International Conference on Pulsed Lasers and Laser Applications; 1132206 (2019) https://doi.org/10.1117/12.2554957
Event: XIV International Conference on Pulsed Lasers and Laser Applications (AMPL-2019), 2019, Tomsk, Russian Federation

Abstract

The influence of irradiation wavelength on the degradation of Bisphenol A (BPA) in water under the action of KrCl and XeBr excilamp radiation in a photoreactor is investigated. Fluorescent photoproducts of photodegradation of the investigated molecule is constructed. In the work fluorescent photoproducts are defined. In an excited state BPA exists in a dimeric form at a concentration above 0.1 mM. After excitation by an excilamp the main BPA photoproduct fluoresces in the region of 420 nm. This behavior is explained by the fact that the action of 222 nm radiation leads to accumulation of a stable photoproduct. This product is destroyed as well as BPA after 120 minutes of exposure. Under the action of XeBr excilamp radiation a very stable product is formed with fluorescence at 380 nm. In order to establish the mechanism of BPA photolysis the product using chromatomass spectrometryfurther research is needed.

Citation Download Citation

E. N. Bocharnikova, O. N. Tchaikovskaya, V. S. Chaidonova, J. Gomez, M. Gomez, and M. Murcia "Fluorescence analysis of Bisphenol A photolysis under exposure to excilamps", Proc. SPIE 11322, XIV International Conference on Pulsed Lasers and Laser Applications, 1132206 (11 December 2019); https://doi.org/10.1117/12.2554957

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