Document Type
Journal Article
Publisher
MDPI
School
School of Engineering
RAS ID
25340
Funders
ECU Innovator Awards (Project No. 23641)
Australian Research Council Discovery Project
National Science Foundation of China (Grant No. 61671206)
Jiangsu Overseas Research & Training Program for University Prominent Young & Middle-aged Teachers and Presidents
Grant Number
ARC Number : DP130103592
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.
DOI
10.3390/met7070273
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Comments
Li, X. F., Liang, S. X., Xi, X. W., Jia, Z., Xie, S. K., Lin, H. C., ... & Zhang, L. C. (2017). Excellent performance of Fe78Si9B13 metallic glass for activating peroxymonosulfate in degradation of naphthol green B. Metals, 7(7), 273.
https://doi.org/10.3390/met7070273