|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XIII
||Saving the Environment from Toxic Chemicals Using Amorphous Metals
||Santanu Das, Seth Garrison, Sundeep Mukherjee
|On-Site Speaker (Planned)
AZO dyes and other organic colorants have created an alarming threat as toxic water pollutants and carcinogens. Recent studies have reported that AZO dyes decrease the permeability of blood–brain barrier, which may result in chronic neurological disorder in the human body. We report on the high catalytic activity of metallic glass powders in dissociating AZO dye. High speed mechanical milling was utilized in order to activate the metallic glass powder and optimize the particle size/morphology to achieve complete degradation of AZO dye in less than 20 minutes. The dye dissociation mechanism was studied using Raman and IR spectroscopy combined with X-ray photoelectron spectroscopy. Ionization of the transition metal atoms on the surface of the metallic glass are believed to break the -C-H-, -C-N-, and -N=N- bonds, resulting in complete degradation of the AZO dye.
||Planned: A print-only volume