Pre-oxidative catalytic treatment of toluidine blue with potassium permanganate in acidic solution

Rafia AZMAT, Faryal Vali MOHAMMED, Tehseen AHMED, Qurat-ul-Ain TANWIR

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PDF(187 KB)
Front. Chem. China ›› 2011, Vol. 6 ›› Issue (2) : 84-90. DOI: 10.1007/s11458-011-0242-9
RESEARCH ARTICLE

Pre-oxidative catalytic treatment of toluidine blue with potassium permanganate in acidic solution

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Abstract

This article describes the potential of KMnO4 for oxidation of the thiazine dye (Toluidine blue TB) in an acidic medium. The effect of different operational parameters like initial concentration of dye, potassium permanganate, pH, ionic strength, catalyst, acids and temperature were investigated spectrophotometrically at λmax = 613 nm. The results showed a complete removal of the TB with mineralization of the dye solution. Smooth and complete decoloration was observed in the presence of monobasic acid (HCl) as compared to the H2SO4 where little color removal was observed. Pb was found to be an effective catalyst in oxidation for complete and fast decolorization with mineralization. No significant change at elevated temperatures showed that an intermediate complex degraded with slight change in the temperature. UV/visible spectrophotometry and GC mass analysis showed an intermediate activated complex demethylated sulophooxide of TB which later on degraded into smaller fragments.

Keywords

oxidation / TB / potassium permanganate / decoloration / Pb

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Rafia AZMAT, Faryal Vali MOHAMMED, Tehseen AHMED, Qurat-ul-Ain TANWIR. Pre-oxidative catalytic treatment of toluidine blue with potassium permanganate in acidic solution. Front Chem Chin, 2011, 6(2): 84‒90 https://doi.org/10.1007/s11458-011-0242-9

References

[1]
Zaharia,C.; Danisla,S., Industrie Alimentara2008, 9, 49–59
[2]
Löhr,W.; Grubhofer,N.; sohmer,I.; Wittekind,D., Biotech. Histochem.1975, 50, 149–156
[3]
Xu,X. R.; Li,H. B.; Wang,W. H.; Gu,J. D., Chemosphere2005, 59, 893–898
CrossRef Pubmed Google scholar
[4]
Aleboyeh,A.; Olya,M. E.; Aleboyeh,H., J. Hazard. Mater.2009, 162, 1530–1535
CrossRef Google scholar
[5]
Damm,J. H.; Hardacre,C.; Kalin,R. M.; Walsh,K. P., Water Res.2002, 36, 3638–3646
CrossRef Pubmed Google scholar
[6]
Haung,K. C.; Hoag,G. E.; Chheda,P.; Woody,B. A.; Dobbs,G. M., Environ. Eng. Sci.1999, 16, 265–274
CrossRef Google scholar
[7]
Lee,E. S. SEOL,Y.; Fang.,Y.C.; Schwartz,F.W., Environ. Sci. Technol.2003, 37, 2540–2546
CrossRef Pubmed Google scholar
[8]
Park,J. S.; Choi,H.; Ahn,K. H., Water Sci. Technol.2003, 47, 179–184
Pubmed
[9]
Vella,P. A.; Munder,J. A., ACS Symp. Ser.1993, 518, 85–105
CrossRef Google scholar
[10]
Azmat,R.; Yasmeen,B.; Uddin,F., Asian Journal of Chemistry2007, 19, 1115–1121
[11]
Azmat,R.; Ahmed,S.; Qureshi,S.; Mohammed,F. V.; Uddin,F.Journal of Applied Sciences2006, 6, 2784–2786
[12]
Ahmed,T.; Uddin,F.; Azmat,R., Chinese Journal of Chemistry2010, 28, 748–754
[13]
Jonnalagadda,S. B.; Dumba,M., Int. J. Chem. Kinet.1993, 25, 745–753
CrossRef Google scholar
[14]
Rauf,M. A.; Bukallah,S. B.; Hamidi,A.; Sulaiman,A.; Hammadi,F., Chem. Eng. J.2007, 129, 167–172
CrossRef Google scholar
[15]
Rauf,M. A.; Ashraf,S. S.; Alhadrami,S. N., Dyes Pigments2005, 66, 197–200
CrossRef Google scholar
[16]
Ashraf,S. S.; Rauf,M. A.; Alhadrami,S. N., Dyes Pigments2006, 69, 74–78
CrossRef Google scholar
[17]
Liu,R.; Liu,H.; Zhao,X.; Qu,J.; Zhang,R., J. Hazard. Mater.2010, 176, 926–931
CrossRef Pubmed Google scholar
[18]
Azmat,R.; Qamer,N.; Saeed,A.; Uddin,F., Chin. J. Chem.2008, 26, 631–634
CrossRef Google scholar

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