Removal of cadmium, zinc, manganese and chromium cations from aqueous solution by a clay mineral.
Removal of cadmium, zinc, manganese and chromium cations from aqueous solution by a clay mineral.
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DOI：
10.1016/j.jhazmat.2006.02.001
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发表时间：
2006-09
影响因子：
13.6
通讯作者：
M. G. da Fonseca;Michelle M de Oliveira;L. N. Arakaki
中科院分区：
文献类型：
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作者：
M. G. da Fonseca;Michelle M de Oliveira;L. N. Arakaki
蛭石是一种 2:1 的粘土矿物，用作吸附剂，用于去除水溶液中的镉、锌、锰和铬。研究了反应时间、pH 值和阳离子浓度等参数。除锌（S 型）外，所有等温线均为 Gilles 分类的 L 型。该吸附剂对这些阳离子表现出良好的吸附潜力。采用Langmuir等温线模型对实验数据进行分析，显示调整合理。 Cd2+、Mn2+、Zn2+、Cr3+的吸附阳离子量分别为0.50、0.52、0.60、0.48mmolg−1。
Vermiculite, a 2:1 clay mineral, was applied as adsorbent for removal of cadmium, zinc, manganese, and chromium from aqueous solutions. Parameters such as time of reaction, effect of pH and cation concentration were investigated. All isotherms were L type of the Gilles classification, except zinc (type S). The adsorbent showed good sorption potential for these cations. The experimental data was analyzed by Langmuir isotherm model showing reasonable adjustment. The quantity of adsorbed cations was 0.50, 0.52, 0.60, and 0.48mmolg−1of Cd2+, Mn2+, Zn2+, and Cr3+, respectively.