Title

Nanostructured metallic glass contributing to efficient catalytic degradation of dye wastewater

Document Type

Journal Article

Publication Title

Journal of Non-Crystalline Solids

Volume

598

Publisher

Elsevier

School

School of Engineering

RAS ID

47151

Funders

National Natural Science Foundation of China (51771103 and 52171158)

Research and Development Program of Shandong Province (Grant No. 2021ZLGX01)

Comments

Chen, Q., Qi, Z., Feng, Y., Liu, H., Wang, Z., Zhang, L., & Wang, W. (2022). Nanostructured metallic glass contributing to efficient catalytic degradation of dye wastewater. Journal of Non-Crystalline Solids, 598, Article 121952.

https://doi.org/10.1016/j.jnoncrysol.2022.121952

Abstract

The effects of annealing temperature on the catalytic degradation capacity of Fe75P15C10 amorphous ribbons in the photo-enhanced Fenton-like reactions are studied using reactive red 195 (RR195) solution. The order of catalytic degradation capacity of the ribbons is AN722 ≥ AN662 ≥ AS ≥ AN542 ≥ AN602, the AN722 ribbon has the highest k (0.349 min − 1), the lowest tη ≥ 95 % (10 min) values, and compared with AS ribbon has good reusability (9 times). Firstly, isothermal annealing is a process of metastable structural relaxation, in which the energy stored in AS ribbon is gradually released, and the high thermodynamic enthalpy and residual stress decrease, which jointly lead to the decline of the catalytic degradation capacity of the ribbons. Secondly, the precipitation of Fe3P nanocrystal/nanophase and amorphous matrix, identified by TEM, induces the formation of galvanic cells effect increase the electron donation rate in the reaction, thus restoring/improving its catalytic degradation capacity.

DOI

10.1016/j.jnoncrysol.2022.121952

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