Rapid reductive degradation of azo dyes by a unique structure of amorphous alloys |
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| Authors: | ChangQin Zhang ZhengWang Zhu HaiFeng Zhang ZhuangQi Hu |
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| Affiliation: | ZHANG ChangQin1,2,ZHU ZhengWang1,ZHANG HaiFeng1 & HU ZhuangQi1 1 Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China,2 Graduate University of Chinese Academy of Sciences,Beijing 100049 |
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| Abstract: | An Fe-based amorphous alloy was found to significantly enhance the reductive degradation of an azo dye in aqueous solution. The surface-area normalized rate constant was up to 2.0 L m-2 min-1 at room temperature,an order of magnitude larger than any previously reported value. The activation energy of the degradation process was calculated according to the Arrhenius equation,and a much lower value than those previously reported was obtained. Valence band measurement indicated that a depressed valence band ma... |
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| Keywords: | amorphous alloys azo dyes UV-visible spectrophotometer degradation activation energy |
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