Jump to main content
Jump to site search

Issue 70, 2014
Previous Article Next Article

Recalcitrance of cyanuric acid to oxidative degradation by OH radical: theoretical investigation

Author affiliations

Abstract

Cyanuric acid (CA) is among the several organic compounds that are resistant to oxidative degradation in advanced oxidation processes (AOPs). In the present study, the reaction between CA and ˙OH radical (the primary reactive oxygen species in AOPs) was investigated by density functional theory and compared with the reaction between 1,3,5-benzenetriol (BT) and ˙OH radical. The results indicate that compared to BT, the two tautomers (enolic form and keto form) of CA have difficulty in thermodynamically and kinetically reacting with ˙OH radical via both the addition to the triazine ring and electron abstraction. Although the reaction for the enolic form of CA was found to be much more favorable than its keto form, the small population of the enolic CA, because of its thermodynamic unstability, makes it less competitive. The reason for the recalcitration of CA to ˙OH radical is attributed to the electron deficiency of the triazine ring because of the higher electro negativity of N atom compared to that of C atom.

Graphical abstract: Recalcitrance of cyanuric acid to oxidative degradation by OH radical: theoretical investigation

Back to tab navigation

Supplementary files

Publication details

The article was received on 19 May 2014, accepted on 01 Aug 2014 and first published on 01 Aug 2014


Article type: Paper
DOI: 10.1039/C4RA04687K
Author version
available:
Download author version (PDF)
RSC Adv., 2014,4, 37359-37364

  •   Request permissions

    Recalcitrance of cyanuric acid to oxidative degradation by OH radical: theoretical investigation

    G. Liu, RSC Adv., 2014, 4, 37359
    DOI: 10.1039/C4RA04687K

Search articles by author

Spotlight

Advertisements