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Vol. 26 No. 15 (2014): Vol 26 Issue 15

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Investigation of Adsorption of 5-Fluorouracil and 5-Bromouracil onto Sepiolite and Loughlinite: An IR Spectroscopic Study

https://doi.org/10.14233/ajchem.2014.16418
Sevim Akyuz
Physics Department, Science and Letters Faculty, Istanbul Kultur University, Atakoy Campus, Bakirkoy 34156, Istanbul, Turkey
Tanil Akyuz
Physics Department, Science and Letters Faculty, Istanbul Kultur University, Atakoy Campus, Bakirkoy 34156, Istanbul, Turkey
Elif Akalin
Physics Department, Science Faculty, Istanbul University, Vezneciler 34134, Istanbul Turkey

Corresponding Author(s) : Sevim Akyuz

s.akyuz@iku.edu.tr

Asian Journal of Chemistry, Vol. 26 No. 15 (2014): Vol 26 Issue 15

Abstract

The adsorption of 5-fluorouracil (5FU) and 5-bromouracil (5BrU) by sepiolite and loughlinite (natural Na-sepiolite) has been investigated using FT-IR spectrometry. The spectroscopic results indicate that 5-halogenouracils adsorbed on sepiolite and loughlinite are coordinated to surface hydroxyls and/or to Lewis acidic centers by hydrogen bonding interaction through the oxygen lone pairs. Some intensity and frequency changes in the OH stretching and deformation bands of surface hydroxyls (Si-OH) of the 5-fluorouracil and 5-bromouracil treated sepiolite and loughlinite were observed. Adsorption capacity of the sepiolite is found to be higher than loughlinite for 5-halogenuracils. Moreover adsorption capacity of clays were found to decrease in the order 5-fluorouracil > 5-bromouracil.

Keywords

Adsorption 5-Bromouracil Clays 5-Fluorouracil IR spectroscopy Loughlinite Sepiolite
Akyuz, S., Akyuz, T., & Akalin, E. (2014). Investigation of Adsorption of 5-Fluorouracil and 5-Bromouracil onto Sepiolite and Loughlinite: An IR Spectroscopic Study. Asian Journal of Chemistry, 26(15), 4875–4878. https://doi.org/10.14233/ajchem.2014.16418
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Author Biography

Tanil Akyuz, Physics Department, Science and Letters Faculty, Istanbul Kultur University, Atakoy Campus, Bakirkoy 34156, Istanbul, Turkey

 

 

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