Effect of Cyclodextrins on Photodegradation of 4,4-Bis(4-Hydroxyphenyl)Pentanoic Acid under UV Irradiation

Li Guo; Jin Huang; Jun Wu; Lei Lei Luo

doi:10.4028/www.scientific.net/AMM.665.455

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 665Effect of Cyclodextrins on Photodegradation of...

Effect of Cyclodextrins on Photodegradation of 4,4-Bis(4-Hydroxyphenyl)Pentanoic Acid under UV Irradiation

Abstract:

The photodegradation of 4,4-bis (4-hydroxyphenyl) pentanoic acid (DPA) with two cyclodextrins (α-CD and β-CD ) in aqueous solutions induced by UV-light was studied in this paper by means of fluorescence spectra and high efficiency liquid chromatography. The result suggested that DPA with α-CD or β-CD formed inclusion compound in aqueous solutions. The photodegradation of DPA with two cyclodextrins or without cyclodextrin was pseudo-first order reaction. The photodegradation of DPA was accelerated by the addition of β-CD in aqueous solutions, but the that of DPA was inhibited in case of adding α-CD. These differences were due to the differences in inclusion interaction of DPA with α-CD or β-CD.

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Periodical:

Applied Mechanics and Materials (Volume 665)

Pages:

455-458

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.665.455

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Online since:

October 2014

Authors:

Li Guo*, Jin Huang, Jun Wu, Lei Lei Luo

Keywords:

4,4-bis(4-hydroxyphenyl)pentanoic acid, Cyclodextrin, Photodegradation, Uv Irradiation

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