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Investigation of FePC amorphous alloys with self-renewing behaviour for highly efficient decolorization of methylene blue

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Abstract

FePC amorphous ribbons using Fenton-like reactions are proved to show excellent degradation performance in wastewater treatment for the first time by decolorizing methylene blue (MB). Compared to the widely investigated FeSiB amorphous ribbons for decolorization, FePC alloys have higher degradation efficiency and lower reaction activation energy, which comes from the fast mass and electron transport due to the 3D nanoporous structures formed during the reaction, as well as the galvanic cells formed between the strong Fe–C and the weak Fe–P bonds. The observed unique “self-renewing” behaviour of FePC ribbons during cyclic tests explains their extremely long service life. The FePC amorphous ribbons are applicable in acidic MB solutions, but not in neutral or alkaline solutions. The highest degradation efficiency is achieved when the initial pH = 3 and the initial H2O2 concentration is 5 mM. The time required for the decomposition of MB drops with the increase of the ribbon dosage or the decrease of the initial MB concentration. This work not only provides a new highly efficient and low-cost solution for wastewater remediation, but also extends the application fields of FePC amorphous alloys.

Graphical abstract: Investigation of FePC amorphous alloys with self-renewing behaviour for highly efficient decolorization of methylene blue

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Publication details

The article was received on 13 Feb 2018, accepted on 23 Mar 2018 and first published on 26 Mar 2018


Article type: Paper
DOI: 10.1039/C8TA01534A
Citation: J. Mater. Chem. A, 2018, Advance Article
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    Investigation of FePC amorphous alloys with self-renewing behaviour for highly efficient decolorization of methylene blue

    Q. Wang, M. Chen, P. Lin, Z. Cui, C. Chu and B. Shen, J. Mater. Chem. A, 2018, Advance Article , DOI: 10.1039/C8TA01534A

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