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Corresponding Author

Qing-Zhi WANG

Abstract

The electrochemical behavior and possible reaction mechanism in Fe(Ⅲ)-oxalate-calcium gluconate system were studied by cyclic voltammetry. The results showed that Fe(Ⅱ)-gluconate was the final reductant. The reduction time, the working voltage and the cathode area influenced the current efficiency. The high current efficiency of 89% for the indirect electrochemical reduction of Vat Scarlet R could be achieved with reduction time of 10 min, working voltage of 4 V and cathode area of 40 cm2 in Fe(Ⅲ)-oxalate-calcium gluconate system.

Graphical Abstract

Keywords

cyclic voltammetry (CV), current efficiency;working voltage, cathode area, Fe(Ⅲ)-oxalate-calcium gluconate system;cotton dyeing

Publication Date

2011-11-28

Online Available Date

2011-09-29

Revised Date

2011-08-17

Received Date

2011-07-12

References

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