Foitite from Linshou mine in China's Hebei province was investigated as an adsorbent to remove Pb(II) and Cu(II) from aqueous solution. The results showed that foitite can readily remove heavy metal ions from aqueous solution. The data shows that the metal uptake for Pb(II) increases rapidly, accounting for 74.47% when contact time was 2 min. In contrast to Pb(II), there was a worse capability for adsorption of Cu(II). In the first 4 min, the metal uptake accounted for 34.7%. According to the analytical results obtained from X-ray diffraction, laser Raman spectrum, X-ray energy dispersive spectrometer, and Zeta potential, the removal mechanism of Pb(II) and Cu(II) by using foitite can be explained as following: firstly, the existence of an electrostatic field around foitite particles can attract heavy metal ions and consequently combine heavy metal ions with OH−; secondly, heavy metal ions in the solution are exchanged with the Fe3+ and Al3+ in the foitite.
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Research Article|
October 01 2011
Removal of lead(II) and copper(II) from aqueous solution using foitite from Linshou mine in Hebei, China
Dengliang He;
Dengliang He
1College of Material Science and Engineering, Sichuan University, Chengdu 610064, China
2Department of Chemistry, Mianyang Normal University, Mianyang 621000, China
3Key Laboratory for Advanced Building Materials of Sichuan Province, Mianyang 621010, China
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Guangfu Yin;
1College of Material Science and Engineering, Sichuan University, Chengdu 610064, China
E-mail: hefei1919@126.com
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Faqin Dong;
Faqin Dong
4Key Laboratory of Solid Waste Treatment and Resource Recycle, Mianyang 621010, China
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Laibao Liu;
Laibao Liu
3Key Laboratory for Advanced Building Materials of Sichuan Province, Mianyang 621010, China
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Xiaoli Tan;
Xiaoli Tan
2Department of Chemistry, Mianyang Normal University, Mianyang 621000, China
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Wangyang He
Wangyang He
2Department of Chemistry, Mianyang Normal University, Mianyang 621000, China
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Water Sci Technol (2011) 64 (8): 1620–1628.
Article history
Received:
February 27 2011
Accepted:
June 09 2011
Citation
Dengliang He, Guangfu Yin, Faqin Dong, Laibao Liu, Xiaoli Tan, Wangyang He; Removal of lead(II) and copper(II) from aqueous solution using foitite from Linshou mine in Hebei, China. Water Sci Technol 1 October 2011; 64 (8): 1620–1628. doi: https://doi.org/10.2166/wst.2011.735
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