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Metals 2017, 7(7), 273; doi:10.3390/met7070273

Excellent Performance of Fe78Si9B13 Metallic Glass for Activating Peroxymonosulfate in Degradation of Naphthol Green B

1
School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, Perth, WA 6027, Australia
2
School of Control Technology, Wuxi Institute of Technology, Wuxi 214121, China
3
School of Mechanical and Electrical Engineering, Jinggangshan University, Ji’an 343000, China
4
Key Laboratory of Polar Materials and Devices, Ministry of Education, East China Normal University, Shanghai 200241, China
*
Authors to whom correspondence should be addressed.
Received: 19 June 2017 / Revised: 12 July 2017 / Accepted: 13 July 2017 / Published: 17 July 2017
(This article belongs to the Special Issue Bulk Metallic Glasses)
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Abstract

The functional application of metallic glasses in the catalytic field has widely attracted research attention due to its unique atomic structure compared to crystalline materials. It has been reported that metallic glasses can effectively activate H2O2 and persulfate, yet the activation of peroxymonosulfate by metallic glasses is not studied well. In this work, the metallic glass with atomic composition of Fe78Si9B13 was applied for investigating the peroxymonosulfate (PMS) activation on degradation of naphthol green B (NGB) dye. The change of surface morphology indicated the important role of oxide films during the dye degradation. The effects and first-order kinetics model of various reaction parameters were evaluated systematically, including PMS concentration, catalyst dosage, irradiation intensity, and dye concentration. The results showed that about 98% of the dye removal rate could be achieved only within 10 min under rational conditions. The reaction kinetics k of 0.1339 min−1 without ribbons was sharply improved to 0.3140 min−1 by adding 0.5 g/L ribbons, indicating the superior activation ability of Fe78Si9B13 metallic glass. The recycling experiment revealed that the Fe78Si9B13 ribbons exhibited the excellent surface stability and catalytic reusability for activating PMS even after reused for 10th run. View Full-Text
Keywords: metallic glass; catalyst; photo-enhanced; peroxymonosulfate activation; oxidative degradation; reusability metallic glass; catalyst; photo-enhanced; peroxymonosulfate activation; oxidative degradation; reusability
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Li, X.-F.; Liang, S.-X.; Xi, X.-W.; Jia, Z.; Xie, S.-K.; Lin, H.-C.; Hu, J.-P.; Zhang, L.-C. Excellent Performance of Fe78Si9B13 Metallic Glass for Activating Peroxymonosulfate in Degradation of Naphthol Green B. Metals 2017, 7, 273.

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