A highly efficient degradation mechanism of methyl orange using Fe-based metallic glass powders Public Deposited

Analytics
http://ir.library.oregonstate.edu/concern/articles/6682x572n

This is the publisher’s final pdf. The published article is copyrighted by the author(s) and published by Nature Publishing Group. The published article can be found at:  http://www.nature.com/articles/srep21947

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • A new Fe-based metallic glass with composition Fe₇₆B₁₂Si₉Y₃ (at. %) is found to have extraordinary degradation efficiency towards methyl orange (MO, C₁₄H₁4N₃SO₃) in strong acidic and near neutral environments compared to crystalline zero-valent iron (ZVI) powders and other Fe-based metallic glasses. The influence of temperature (294–328 K) on the degradation reaction rate was measured using ball-milled metallic glass powders revealing a low thermal activation energy barrier of 22.6 kJ/mol. The excellent properties are mainly attributed to the heterogeneous structure consisting of local Fe-rich and Fe-poor atomic clusters, rather than the large specific surface and strong residual stress in the powders. The metallic glass powders can sustain almost unchanged degradation efficiency after 13 cycles at room temperature, while a drop in degradation efficiency with further cycles is attributed to visible surface oxidation. Triple quadrupole mass spectrometry analysis conducted during the reaction was used to elucidate the underlying degradation mechanism. The present findings may provide a new, highly efficient and low cost commercial method for azo dye wastewater treatment.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Xie, S., Huang, P., Kruzic, J. J., Zeng, X., & Qian, H. (2016). A highly efficient degradation mechanism of methyl orange using Fe-based metallic glass powders. Scientific Reports, 6, 21947. doi:10.1038/srep21947
Series
Rights Statement
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2016-03-17T15:04:50Z (GMT) No. of bitstreams: 2 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) XieHighlyEfficientDegradation.pdf: 1615522 bytes, checksum: 31e54a97da4f69a1a073b2d7bed9c5df (MD5)
  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2016-03-17T15:04:22Z No. of bitstreams: 2 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) XieHighlyEfficientDegradation.pdf: 1615522 bytes, checksum: 31e54a97da4f69a1a073b2d7bed9c5df (MD5)
  • description.provenance : Made available in DSpace on 2016-03-17T15:04:50Z (GMT). No. of bitstreams: 2 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) XieHighlyEfficientDegradation.pdf: 1615522 bytes, checksum: 31e54a97da4f69a1a073b2d7bed9c5df (MD5) Previous issue date: 2016-02-23

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items

Thumbnail Title Date Uploaded Visibility Actions
J3860856x?file=thumbnail XieHighlyEfficientDegradation.pdf 2017-07-26 Public