Removal Efficiency and Mechanism of Cu(Ⅱ) From Aqueous Solution by Fe-Si-B Amorphous Alloy RS-Ribbons
Author of the article:DU Jinying;ZHANG Xiangyun;LI Shixia;YUAN Zizhou
Author's Workplace：State Key Laboratory of Advanced Non-Ferrous Materials,Lanzhou University of Technology,Lanzhou 730050,China;Gansu Iron and Steel Vocational Technical College,Jiayuguan 735100,China
Key Words：Fe-Si-B amorphous alloy ribbons Cu(Ⅱ) removal
Abstract：The Fe-Si-B amorphous alloy RS-ribbons(Fe-Si-BAR) were prepared by single-roller melt-spinning method.Experiment to remove Cu(Ⅱ) in solution with initial conc entration of 100 mg/L under Fe-Si-BAR dosages value of 0.08、0.3、0.6、1.0 g/L, respectively. The results show that the removal efficiency of Cu(Ⅱ) increase from 85% to 99% with increasing the Fe-Si-BARdosage from 0.08 to 1 g/L, and the removal process can be described by a pseudo-first-order kinetics model. Fe-Si-BARremoval of Cu(Ⅱ) is mainly based on the REDOX reaction, reduction product for Cu and Cu2O. During the reaction, the product layer on the surface of Fe-Si-BAR forms a loose structure and falls off the surface of the strip.
