MG）粉末和目前廣泛應(yīng)用的零價鐵粉（ZVI，F(xiàn)e0）對水溶液中重金屬離子Ni(II)的去除性能。動力學(xué)分析顯示Fe-Si-BMG粉末對Ni(II)的去除效率約為Fe0粉的38倍。通過對2種粉末的表面形貌觀察發(fā)現(xiàn)，與Fe0粉相比， Fe-Si-BMG粉末的表面產(chǎn)物層具有均勻、疏松的絮狀物，更容易在攪拌過程中脫落。通過對Fe-Si-BMG粉末反應(yīng)前后的表面化學(xué)成分分析發(fā)現(xiàn)：Fe-Si-BMG粉末通過吸附、還原、共沉淀作用去除水溶液中Ni(II)，而Fe0粉主要通過吸附和共沉淀去除水溶液中的Ni(II)。"/>

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Fe-Si-B非晶合金粉末對水溶液中Ni(II)的去除機理
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作者單位:

1.蘭州理工大學(xué) 省部共建有色金屬先進加工與再利用國家重點實驗室，甘肅 蘭州 730050;2.蘭州理工大學(xué) 溫州泵閥工程研究院，浙江 溫州 325105

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中圖分類號:

TG139+.8；TG249.9

基金項目:

國家自然科學(xué)基金 [ No. 51661015 和 No. 52061024]; 浙江省自然科學(xué)基金 [No. LQ20E010002]


Removal Mechanism of Ni(II) from Aqueous Solution by Fe-Si-B Metallic Glass Powder
Author:
Affiliation:

1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China;2.Wenzhou Engineering Institute of Pump & Valve, Lanzhou University of Technology, Wenzhou 325105, China

Fund Project:

National Natural Science Foundation of China (51661015, 52061024); Zhejiang Provincial Natural Science Foundation (LQ20E010002)

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    摘要:

    對比研究了商業(yè)Fe-Si-B非晶（Fe-Si-BMG）粉末和目前廣泛應(yīng)用的零價鐵粉（ZVI，F(xiàn)e0）對水溶液中重金屬離子Ni(II)的去除性能。動力學(xué)分析顯示Fe-Si-BMG粉末對Ni(II)的去除效率約為Fe0粉的38倍。通過對2種粉末的表面形貌觀察發(fā)現(xiàn)，與Fe0粉相比， Fe-Si-BMG粉末的表面產(chǎn)物層具有均勻、疏松的絮狀物，更容易在攪拌過程中脫落。通過對Fe-Si-BMG粉末反應(yīng)前后的表面化學(xué)成分分析發(fā)現(xiàn)：Fe-Si-BMG粉末通過吸附、還原、共沉淀作用去除水溶液中Ni(II)，而Fe0粉主要通過吸附和共沉淀去除水溶液中的Ni(II)。

    Abstract:

    The commercial Fe-Si-B metallic glass (Fe-Si-BMG) powder and the widely used powder of zero valent iron (ZVI), namely Fe0, were used to eliminate the Ni(II) from aqueous solution. Kinetic analysis results indicate that the removal efficiency of Fe-Si-BMG powder in removing Ni(II) is about 38 times faster than that of the Fe0 powder. Morphology observation shows that the product layers on the surface of Fe-Si-BMG powder are composed of homogeneous and loose whiskers, which peel off more easily from the surface during the agitation process, compared with those of Fe0 powder. Chemical composition analysis about the surface of Fe-Si-BMG powders before and after reaction shows that Fe-Si-BMG powder can eliminate the Ni(II) through surface adsorption, reduction, and coprecipitation mechanisms; while Fe0 powder removes the Ni(II) in solution mainly through surface adsorption and coprecipitation mechanisms.

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引用本文

張香云,張咪,李金祺,杜進英,袁子洲.Fe-Si-B非晶合金粉末對水溶液中Ni(II)的去除機理[J].稀有金屬材料與工程,2022,51(1):60~65.[Zhang Xiangyun, Zhang Mi, Li Jinqi, Du Jinying, Yuan Zizhou. Removal Mechanism of Ni(II) from Aqueous Solution by Fe-Si-B Metallic Glass Powder[J]. Rare Metal Materials and Engineering,2022,51(1):60~65.]
DOI：10.12442/j. issn.1002-185X.20200813

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  • 收稿日期:2020-10-21
  • 最后修改日期:2020-11-18
  • 錄用日期:2020-12-23
  • 在線發(fā)布日期: 2022-02-04
  • 出版日期: 2022-01-28