Decolorization of synthetic dyes using a copper complex with glucaric acid |
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Authors: | Verma Pradeep Shah Vishal Baldrian Petr Gabriel Jirí Stopka Pavel Trnka Tomás Nerud Frantisek |
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Institution: | Laboratory of Biochemistry of Wood-rotting Fungi, Institute of Microbiology, ASCR, Videnska 1083, 14220, Prague 4, Czech Republic. |
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Abstract: | Selected azo, acridine, triphenyl methane, anthraquinone and thiazine-based dyes were decolorized using a catalytic system consisting of Cu(II)/glucaric acid/H(2)O(2). More than 90% decolorization was obtained with 100 ppm Acridine Orange, Azure B, Chicago Sky Blue, Crystal Violet, Methyl Orange, Poly B-411, Reactive Black 5, Reactive Blue 2, and Remazol Brilliant Blue R within 24 h. Seventy to eighty percent decolorization was achieved within the first 6 h. The decolorizaton was not affected by pH. The involvement of hydroxyl radicals produced in the system in the decolorization of the dye molecules was confirmed by electron spin resonance study. |
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