Light activated methylene blue degradation by magnetic Fe₈₀P_xC_20-x (x=0, 4, 7 and 13) glassy ribbons

The light activated Methylene Blue (MB) degradation performance and magnetic properties of the Fe80PxC20-x (x = 0, 4, 7 and 13) glassy ribbons are investigated in this work. The structure of the as-spun Fe80C20 ribbons is crystalline state while the as-spun Fe80PxC20-x (x = 4, 7 and 13) ribbons is amorphous state. Under dark condition, the degradation efficiency eta Dark for MB decreases gradually with increasing P content (cP) in the ribbons, and the stability of Fe-P bonds is higher than Fe-C bonds in annealing Fe80P4C16 ribbons, indicating that Fe-P bonds release less Fe participating in the Fenton-like reaction; under visible light (VL), the eta VL of ribbons increases firstly and then decreases with increasing cP and the ribbon with x = 4 show the highest eta VL, which is consistent with the changing tendency of soft magnetic property of the present ribbons. This work provides a new insight in designing and applying the FePC amorphous alloys. (c) 2023 Elsevier B.V. All rights reserved.