Identification of photooxidation degradation products of CI Reactive Orange 16 dye by gas chromatography-mass spectrometry

Bilgi S., Demir C.

DYES AND PIGMENTS, cilt.66, sa.1, ss.69-76, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 66 Sayı: 1
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.dyepig.2004.08.007
  • Dergi Adı: DYES AND PIGMENTS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.69-76
  • Anahtar Kelimeler: CI Reactive Orange 16, photooxidation, degradation products, GC/MS, UV irradiation, wastewater, SULFONATED AZO DYES, PERFORMANCE LIQUID-CHROMATOGRAPHY, AQUEOUS TIO2 SUSPENSIONS, PHOTOCATALYTIC DEGRADATION, CAPILLARY-ELECTROPHORESIS, WASTE-WATER, OXIDATION
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

The photodegradation of aqueous solutions of C.I. Reactive Orange 16 was investigated under UV irradiation. The degradation was studied by monitoring the change in absorption and relative intensity employing UV-spectroscopic and GC/MS analysis as functions of irradiation time. The rate of degradation of the dye was evaluated. The solution was completely decolorized after 100 min of photooxidation. The generated degradation products were detected by GC/MS. 6-Acetylamino-3-amino-naphthalene-2sulfonic acid, N-(3,4-bis-hydroxymethyl-phenyl)-acetamide and plithalic acid were found during the degradation of C.I. Reactive Orange 16. The probable pathways for the formation of the degradation products were proposed. GC/MS analysis and degradation pathways demonstrated that naphthalene and benzene rings were observed during photooxidation. (C) 2004 Elsevier Ltd. All rights reserved.