| 蒙脱石等粘土矿物对重金属离子吸附选择性的实验研究 |
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| 引用本文： | 何宏平,郭九皋,谢先德,彭金莲.蒙脱石等粘土矿物对重金属离子吸附选择性的实验研究[J].矿物学报,1999,19(2):231-235. |
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| 作者姓名： | 何宏平 郭九皋 谢先德 彭金莲 |
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| 作者单位： | 中国科学院广州地球化学研究所,广州,510640 |
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| 基金项目： | 国家自然科学基金!49602024，广东省自然科学基金!970570 |
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| 摘 要： | 矿物质与重金属离子间的相互作用已是当今环境科学、矿物学，土壤化学等学科领域研究的热点。通过蒙脱石，伊利石和高龄石在一定的介质条件下对Ｃｕ＾２＋、Ｐｂ＾２＋、Ｚｎ＾２＋、Ｃｄ＾２＋、Ｃｒ＾３＋五种重金属离子的竞争吸附实验研究，阐明了三种粘土矿物对五种重金属离子的吸附选择性。
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| 关 键 词： | 蒙脱石 伊利石 高岭石 重金属离子 吸附选择性 |
EXPERIMENTAL STUDIES ON THE SELECTIVE ADSORPTION OF Cu2+,Pb2+,Zn2+,Cd2+,Cr3+ IONS ON MONTMORILLONITE,ILLITE AND KAOLINITE AND THE INFLUENCE OF MEDIUM CONDITIONS |
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| He Hongping,Guo Jiugao,Xie Xiande,Pen Jinlian.EXPERIMENTAL STUDIES ON THE SELECTIVE ADSORPTION OF Cu2+,Pb2+,Zn2+,Cd2+,Cr3+ IONS ON MONTMORILLONITE,ILLITE AND KAOLINITE AND THE INFLUENCE OF MEDIUM CONDITIONS[J].Acta Mineralogica Sinica,1999,19(2):231-235. |
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| Authors: | He Hongping Guo Jiugao Xie Xiande Pen Jinlian |
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| Institution: | Guangzhou Institute of Geochemistry. Chinese Academy of Sciences. Guangzhou 510640 |
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| Abstract: | Interactions between minerals and heavy metals are an important aspect of environmen tal science, mineralogy and soil science. Through experimental studies on selective adsorption of Cu2+ .Pb2+, Zn2+ .Cd2+ .Cr3+ ions on montmorillonite. illite and kaolinite at certain conditions, it could be concluded that Cr3+ is most effectively adsorbed on all the three minerals. Also , it can be found that Pb2+ shows a strong affinity for illite and kaolinite while Cu2+ shows a strong affinity for montmorillonite. Based on the adsorption experiment at various pH values of the solution, we can find that the amount of heavy metals adsorbed on minerals tends to increase with increasing pH of the solution. |
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| Keywords: | montmorillonite illite kaohnite heavy metal selective adsorption medium condition |
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