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有机硅修饰的剥层水滑石及其对废水中金属离子的吸附

赵秀巧 ,  董丽君 ,  操越 ,  莫士净 ,  义建军 ,  徐庆红

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引用本文: 赵秀巧, 董丽君, 操越, 莫士净, 义建军, 徐庆红. 有机硅修饰的剥层水滑石及其对废水中金属离子的吸附[J]. 无机化学学报, 2013, 29(4): 817-825. doi: 10.3969/j.issn.1001-4861.2013.00.137 shu
Citation:  ZHAO Xiu-Qiao, DONG Li-Jun, CAO Yue, MO Shi-Jing, YI Jian-Jun, XU Qing-Hong. Exfoliated LDHs Modified with Organic Silicon Regent and Their Adsorption to Metal Ions from Wastewater[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(4): 817-825. doi: 10.3969/j.issn.1001-4861.2013.00.137 shu

有机硅修饰的剥层水滑石及其对废水中金属离子的吸附

  • 基金项目:

    国家自然科学基金(No.50602004) (No.50602004)

    吉林大学无机合成与制备化学国家重点实验室开放基金(No.2011-31)资助项目。 (No.2011-31)

摘要: 对剥层的镁铝硝酸根水滑石(Mg2Al-NO3-LDHs)片表面进行了有机硅化合物(N-(2-Aminoethyl)-3-aminopropyl)tris-(2-ethoxy)silane(KH-791)修饰, 并研究了修饰后的水滑石片对废水中Pb2+, Cu2+ 和Zn2+离子的吸附行为。结果表明:在相同的温度和金属离子浓度条件下, 被修饰的水滑石片对Pb2+吸附容量最大, 达到378.0 mg·g-1;在以上几种金属离子的混合溶液中, 修饰主体材料表现出对Pb2+高度的选择性吸附, 对Pb2+吸附容量为85 mg·g-1, 而对Zn2+和Cu2+的吸附容量只有30 mg·g-1左右。

English

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  • 收稿日期:  2012-11-13
  • 网络出版日期:  2012-01-04
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