| 海水中氨基酸对Cu(Ⅱ)—蒙脱石、SiO_2之间离子交换的影响 |
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| 引用本文： | 王修林,刘蓬生,张正斌.海水中氨基酸对Cu(Ⅱ)—蒙脱石、SiO_2之间离子交换的影响[J].海洋湖沼通报,1991(1). |
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| 作者姓名： | 王修林 刘蓬生 张正斌 |
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| 作者单位： | 青岛海洋大学，青岛海洋大学，青岛海洋大学 |
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| 基金项目： | 国家自然科学基金资助课题 |
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| 摘 要： | 本文研究了海水中组氨酸、天冬氨酸、丙氨酸对Cu(Ⅱ)—蒙脱石、SiO_2之间离子交换率(%)—pH曲线的影响。结果表明,低浓度氨基酸促进Cu(Ⅱ)—蒙脱石之间离子交换,而高浓度则起抑制作用;但低浓度氨基酸对Cu(Ⅱ)—SiO_2离子交换没有影响,而高浓度起抑制作用。分析表明,氨基酸的促进效应与表面三元络合物相关,而抑制效应与液相中Cu(Ⅱ)—氨基酸络合反应相关。
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| 关 键 词： | 蒙脱石 海水 氨基酸 铜 离子交换 液—固界面 |
THE EFFECT OF AMINO ACID ON Cu(II)-MONTMORI-LLONITE, SiO_2 ION INTERCHANGE IN SEAWATER |
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| Wang Xiulin Liu Liansheng and Zhang Zhengbin.THE EFFECT OF AMINO ACID ON Cu(II)-MONTMORI-LLONITE, SiO_2 ION INTERCHANGE IN SEAWATER[J].Transaction of Oceanology and Limnology,1991(1). |
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| Authors: | Wang Xiulin Liu Liansheng and Zhang Zhengbin |
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| Institution: | Ocean University of Qingdao |
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| Abstract: | This paper studies the effect of histidine, aspartic acid and alanini on Cu(II)-montmorilloaite, SiO_2 ion interchange rate(%)-PH curve in sea-water. It is shown that amino acids of lower concentration promote Cu(II)-montmorillonite ion interchange, while those of higher concentration inhibit the interchange. Amino acids of lower concentration do not influence Cu(II)-SiO_2 ion interchange, but those higher concentration inhibit the interchange. On the basis of a univerasl equation of effect of organics on trace metal-solid particle ion interchange in seawater it is supposed that promoting effect of amino acids is dependent of the ternary sur(?)ace complex, and inhibiting effe(?)t is dependent of Cu(II)-ami(?) a(?)d complex in solution in the amino acid-solid partic.Ie-Cu(II) systems. |
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| Keywords: | montmorillonite sea water amino acid copper ion interchange liquid-solid interface |
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