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Fe-Si-B非晶合金薄带对水中Cu(Ⅱ)的去除性能及机理研究
Removal Efficiency and Mechanism of Cu(Ⅱ) From Aqueous Solution by Fe-Si-B Amorphous Alloy RS-Ribbons
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- DOI:
- 作者:
- 杜进英 张香云 李世霞 袁子洲
DU Jinying;ZHANG Xiangyun;LI Shixia;YUAN Zizhou
- 作者单位:
- 兰州理工大学甘肃省有色金属新材料重点实验室 甘肃钢铁职业技术学院
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
- 关键词:
- Fe-Si-B非晶合金条带 Cu(Ⅱ) 去除
Fe-Si-B amorphous alloy ribbons Cu(Ⅱ) removal
- 摘要:
- 采用单辊甩带法制备了Fe-Si-B非晶合金条带(Fe-Si-BAR)。分别将0.08、0.30、0.60、1.00 g/L的Fe-Si-BAR加入初始浓度为100 mg/L的含Cu(Ⅱ)溶液中进行Cu(Ⅱ)去除试验。结果表明,随着Fe-Si-BAR剂量从0.08增加到1.00 g/L,Cu (Ⅱ)的去除率从85%升高到99%,且去除过程符合伪一级动力学模型。Fe-Si-BAR去除Cu (Ⅱ)主要基于氧化还原反应,还原产物为Cu和Cu2O。反应过程中,Fe-Si-BAR表面产物层形成松散结构,并且从条带表面脱落。
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.