Copper-ligand complex for the decolorization of synthetic dyes |
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Authors: | Verma Pradeep Baldrian Petr Gabriel Jirí Trnka Tomás Nerud Frantisek |
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Affiliation: | Laboratory of Biochemistry of Wood-rotting Fungi, Institute of Microbiology ASCR, Vídenská 1083, 14220 Prague 4, Czech Republic. |
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Abstract: | The reaction system containing Cu(II), hydrogen peroxide and D-arabinono-1,4-lactone was found to be effective in the decolorization and reduction of toxicity of azo, thiazine-, triphenylmethane- and anthraquinone-based synthetic dyes. More than 85% decolorization was obtained with 100ppm Acridine Orange, Azure B, Chicago Sky Blue 6B, Crystal Violet, Evans Blue, Poly B-411, Reactive Blue 2, Reactive Blue 5, and Remazol Brilliant Blue R incubated for 24h in the presence of 10mM CuSO(4), 20mM D-arabinono-1,4-lactone and 80 mM H(2)O(2). The rate of decolorization was not affected by pH in the range of 3-9. The rapid decolorization was accompanied by a fast decomposition of H(2)O(2) in the reaction mixture and by a fast production of hydroxyl radicals. |
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