The effect of high-energy radiation on aqueous solution of Acid Red 1 textile dye

Cs M. Földváry, L. Wojnárovits

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The effect of high-energy radiation on Acid Red 1 (AR1) azo-dye solution was investigated by UV-Vis spectroscopy and chemical oxygen demand (COD) measurements. Doses in the order of 10 kGy cause complete decolouration of the 10-3-10-4 mol dm-3 solutions; however, for complete mineralization doses higher by 1-2 order of magnitude are needed. Hydrated electrons and H{radical dot} atom are more effective in fading reaction, while the {radical dot}OH radicals have higher efficiency in mineralization. The HO2/O2•- radical-radical anion pair is rather inefficient in fading reaction.

Original languageEnglish
Pages (from-to)1485-1488
Number of pages4
JournalRadiation Physics and Chemistry
Issue number8-9
Publication statusPublished - Aug 1 2007



  • Acid Red 1
  • Azophloxine
  • Wastewater treatment
  • γ-Radiation

ASJC Scopus subject areas

  • Radiation

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