Removal of crystal violet dye from aqueous solution by gamma irradiation

• FAIZA REHMAN ^[1] ; SAYED MURTAZA ^[1] ; JAVED ALI KHAN ^[1] ; HASAN M KHAN ^[1]
  1. [1] University of Peshawar

     University of Peshawar

     Pakistán

     
• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 62, Nº. 1, 2017, págs. 3359-3364
• Idioma: inglés
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• Resumen

  • In this study the radiation-induced degradation of crystal violet (CV) dye under various experimental conditions has been investigated. D0.5, D0.9 and D0.99 values suggests that lower doses are required for 50%, 90% and 99% removal of CV dye when the sample solution contains excessive amount of �OH radicals. The removal efficiency of CV dye in terms of G-values was also calculated under each reaction conditions. The results showed that �OH radicals are playing effective role in the degradation of CV dye as compared to e aq‒ and .H radicals. The gamma irradiation process effectively degraded CV dye at all pH values. The organic byproducts were examined and accordingly degradation pathway was proposed.