TY - JOUR
T1 - Degradation of commercial azo dye reactive Black B in photo/ferrioxalate system
AU - Huang, Yao Hui
AU - Tsai, Shu Ting
AU - Huang, Yi Fong
AU - Chen, Chuh Yung
N1 - Funding Information:
The authors would like to thank the National Science Council of the Republic of China, Taiwan, for financially supporting this research under Contract No. NSC94-2211-E-006-032.
PY - 2007/2/9
Y1 - 2007/2/9
N2 - The photolysis and photo-catalysis of ferrioxalate in the presence of hydrogen peroxide with UV irradiation (UV/ferrioxalate/H2O2 process) for treating the commercial azo dye, reactive Black B (RBB), is examined. An effort is made to decolorize textile effluents at near neutral pH for suitable discharge of waste water. pH value, light source, type of initial catalyst (Fe3+ or Fe2+) and concentration of oxalic acid (Ox) strongly affected the RBB removal efficiency. The degradation rate of RBB increased as pH or the wavelength of light declined. The optimal molar ratio of oxalic acid to Fe(III) is three, and complete color removal is achieved at pH 5 in 2 h of the reaction. Applying oxalate in such a photo process increases both the RBB removal efficiency and the COD removal from 68% and 21% to 99.8% and 71%, respectively.
AB - The photolysis and photo-catalysis of ferrioxalate in the presence of hydrogen peroxide with UV irradiation (UV/ferrioxalate/H2O2 process) for treating the commercial azo dye, reactive Black B (RBB), is examined. An effort is made to decolorize textile effluents at near neutral pH for suitable discharge of waste water. pH value, light source, type of initial catalyst (Fe3+ or Fe2+) and concentration of oxalic acid (Ox) strongly affected the RBB removal efficiency. The degradation rate of RBB increased as pH or the wavelength of light declined. The optimal molar ratio of oxalic acid to Fe(III) is three, and complete color removal is achieved at pH 5 in 2 h of the reaction. Applying oxalate in such a photo process increases both the RBB removal efficiency and the COD removal from 68% and 21% to 99.8% and 71%, respectively.
UR - https://www.scopus.com/pages/publications/33846898576
UR - https://www.scopus.com/pages/publications/33846898576#tab=citedBy
U2 - 10.1016/j.jhazmat.2006.10.083
DO - 10.1016/j.jhazmat.2006.10.083
M3 - Article
C2 - 17129672
AN - SCOPUS:33846898576
SN - 0304-3894
VL - 140
SP - 382
EP - 388
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 1-2
ER -