Excellent degradation performance of the Fe78Si11B9P2 metallic glass in azo dye treatment. (October 2020)

• Record Type: Journal Article
• Authors: Ji, L.; Chen, J.W.; Zheng, Z.G.; Qiu, Z.G.; Peng, S.Y.; Zhou, S.H.; Zeng, D.C.
• Is Part Of: Journal of physics and chemistry of solids. Volume 145(2020)
• Publication Date: 2020-10
• Subjects: Fe78Si11B9P2 metallic glass -- Degradation -- Reusability -- High COD removal -- Wastewater treatment; Solids -- Periodicals; Solides -- Périodiques; Solids; Periodicals; 530.41
• DOI: 10.1016/j.jpcs.2020.109546
• Languages: English
• ISSNs: 0022-3697

Abstract

Abstract: Fe78 Si11 B9 P2 metallic glass (MG) ribbons are proved to exhibit excellent comprehensive ability in azo dye treatment. The Fe78 Si11 B9 P2 MG ribbons can degrade the azo dye effectively, which derived from high mass and electron transfer ability due to the cotton-like structure formed during the reaction. The degradation efficiency and reaction rate raise with the decrease of the initial Orange Ⅱ concentration, the increase of ribbon dosage and the proper addition of H2 O2 . The Fe78 Si11 B9 P2 MG ribbons are more applicable in acidic and neutral solutions. Compared to the other reported Fe-based metallic glasses for dye degradation, the Fe78 Si11 B9 P2 MG has a lower reaction activation energy and relatively good reusability in treating with azo dye. In addition, the achieved high COD removal indicates that the complex organic structures in azo dye can be decomposed completely by Fe78 Si11 B9 P2 MG ribbons. This work not only provides a new effective and low-cost materials for wastewater treatment, but also promotes the practical applications of Fe-based MGs as functional materials. Graphical abstract: Image 1 Highlights: The new type of Fe78 Si11 B9 P2 metallic glass is prepared. Fe78 Si11 B9 P2 MG ribbons exhibit excellent degradation capability under different reaction conditions. Cotton-like structure formed on the ribbon surface during reaction process. The MG ribbons show the low activation energy and high COD removal in treating with azo dye. Superior reusability of Fe78 Si11 B9 P2 MG ribbons in treating with azo dye is obtained.