Rapid Degradation of Azo Dye by Fe‐Based Metallic Glass Powder

Advanced Functional Materials - Tập 22 Số 12 - Trang 2567-2570 - 2012
J.Q. Wang1, Yan Hui Liu1, Mingwei Chen1, Guoqiang Xie2, D. V. Louzguine1, Akihisa Inoue1, John H. Perepezko3,4
1WPI Advanced Institute of Materials Research, Tohoku University, Sendai 980-8577, Japan
2Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
3Department of Materials Science and Engineering, University of Wisconsin-Madison, 1509 University Avenue, Madison, WI 53706, USA
4WPI Advanced Institute of Materials Research, Tohoku University, Sendai 980‐8577, Japan.

Tóm tắt

AbstractThe outstanding efficiency of Fe‐based metallic glass powders in degrading organic water contaminants is reported. While the glassy alloy contains 24% chemically inactive metalloid elements, the powders are capable to completely decompose the C32H20N6Na4O14S4 azo dye in aqueous solution in short time, about 200 times faster than the conventional Fe powders. The metastable thermodynamic nature and the particle surface topography are the major factors controlling the chemical performance of the metallic glass. Our findings may open a new opportunity for functional applications of metallic glasses.

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Thông tin xuất bản

Advanced Functional Materials

Tập 22 Số 12

2567-2570

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