研究论文
邓一苇,刘静宜.汞(Ⅱ)-有机物-悬浮物体系的吸附行为和电泳特征的探讨[J].环境科学学报,1985,5(4):411-421
汞(Ⅱ)-有机物-悬浮物体系的吸附行为和电泳特征的探讨
- CHARACTERISTICS OF ADSORPTION AND ELECTROPHORESIS IN MERCURY (Ⅱ)-ORGANIC COMPOUND-SUSPENDED PARTICLES SYSTEM
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- 基金项目：
- 作者
- 单位
- 邓一苇
- 中国科学院环境化学所
- 刘静宜
- 中国科学院环境化学所
- 摘要：本文研究了Hg(Ⅱ)-HS-CH2-COOH-OH-α-Al2O3悬浮体系的吸附行为和电泳特征.通过Gouy-Chapman和Healy模化处理,揭示了α-Al2O3微粒固-液界面双电层电荷密度和厚度的分布状况.以Healy模型拟合实验吸附曲线的结果,从热力学的角度,提出了吸附反应存在库仑吸附和化学吸附两种途径.计算结果与实验曲线拟合较好.运用ESCA技术,观察到固-液界面的成键效应.
- Abstract：Adsorption and electrophoresis behavior of Hg(I)-HS-CH2-COOH-OH--a-Al2O3 suspension system were studied. The charge density distribution and the double-layer thickness were calculated by using Gouy-Chapman model. The Healy model was adopted to fit the adsorption curve. The coulombian force and the chemical effect were found to be dominant in the adsorption. The bonding effect on solid-liquid interface was observed by means of ESCA technique.
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