Adsorption Behavior of Cadmium(II) and Lead(II) on Mesoporous Silicate MCM‐41
Adsorption Behavior of Cadmium(II) and Lead(II) on Mesoporous Silicate MCM‐41
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DOI：
10.1080/01496390600674786
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发表时间：
2006-07
影响因子：
2.8
通讯作者：
S. Oshima;J. Perera;K. Northcott;H. Kokusen;G. Stevens;Y. Komatsu
中科院分区：
文献类型：
--
作者：
S. Oshima;J. Perera;K. Northcott;H. Kokusen;G. Stevens;Y. Komatsu
摘要本文研究了由硅酸钠溶液和十六烷基三甲基溴化铵（CTAB）合成的介孔硅酸盐MCM-41对金属离子的吸附。MCM-41具有规则的六方孔结构、大的比表面积和大的孔体积，具有作为吸附剂材料的潜力。使用粉末X射线衍射和氮吸附和脱附等温线数据来表征用于本研究合成的MCM-41。研究了介孔分子筛MCM-41对镉（II）和铅（II）的吸附行为。发现Cd 2+和Pb 2+都定量吸附到MCM-41上。本研究的结果表明，MCM-41可能有应用于回收有毒金属的废水沃茨。
Abstract This investigation examines metal ion adsorption on mesoporous silicate, MCM‐41, synthesized from sodium silicate solution and cethyltrimethylammonium bromide (CTAB). MCM‐41 has potential as an adsorbent material, with a regular hexagonal pore structure, large specific surface area, and large pore volume. The MCM‐41 synthesized for this investigation is characterized using powder X‐ray diffraction and nitrogen adsorption and desorption isotherms data. The adsorption behavior for cadmium(II) and lead(II) onto MCM‐41 was studied by contacting the mesoporous silicate with an aqueous solution of metal salts and acetylacetone. Both Cd2+ and Pb2+ were found to quantitatively adsorb onto MCM‐41. The results of this study suggest that MCM‐41 may have applications in the recovery of toxic metals from waste waters.