Journal
ADVANCED ENGINEERING MATERIALS
Volume 18, Issue 2, Pages 214-218Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adem.201500239
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The authors report on the high catalytic activity and bi-functional catalysis mechanism of amorphous metals in degrading AZO Dye, a toxic water pollutant and carcinogen. Aluminum-based metallic glass was found to completely degrade AZO dye at room temperature without any toxic by-products. The high catalytic activity originates from the simultaneous ionization of the transition metals, which act as electron donors for rapid degradation of AZO dye in an aqueous medium. The dye degradation rate and catalytic activity were characterized via UV-VIS absorption spectroscopy. The rate of dye degradation was significantly faster compared to state-of-the-art zero valent iron. The dye degradation mechanism was studied using Raman and IR spectroscopy combined with X-ray photoelectron spectroscopy.
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