Research Abstract


Excellent capability in degrading azo dyes by MgZn-based metallic glass powders

2012年5月23日 Scientific Reports 2 : 418 doi: 10.1038/srep00418


Jun-Qiang Wang1, Yan-Hui Liu1, Ming-Wei Chen1, Dmitri V. Louzguine-Luzgin1, 井上 明久2 & John H. Perepezko1,3

  1. 東北大学原子分子材料科学高等研究機構(WPI-AIMR)
  2. 東北大学 金属材料研究所
  3. ウィスコンシン大学マディソン校(米国)

The lack of new functional applications for metallic glasses hampers further development of these fascinating materials. In this letter, we report for the first time that the MgZn-based metallic glass powders have excellent functional ability in degrading azo dyes which are typical organic water pollutants. Their azo dye degradation efficiency is about 1000 times higher than that of commercial crystalline Fe powders, and 20 times higher than the Mg-Zn alloy crystalline counterparts. The high Zn content in the amorphous Mg-based alloy enables a greater corrosion resistance in water and higher reaction efficiency with azo dye compared to crystalline Mg. Even under complex environmental conditions, the MgZn-based metallic glass powders retain high reaction efficiency. Our work opens up a new opportunity for functional applications of metallic glasses.