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巯基中空纤维亲和膜Hg2+动态等温吸附方程的计算机模拟

Computer simulation of dynamic isothermal adsorption of hollow fiber affinity membrane modified with mercapto for Hg2 +

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【作者】 黄橡丽王兵

【Author】 HUANG Xiang-li, WANG Bing ( School of Information Engineering, Tianjin Commercial University, Tianjin 300134, China; School of Material Science and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300160, China)

【机构】 天津商学院信息工程学院天津工业大学材料科学与化学工程学院 天津300134天津300160

【摘要】 在测定巯基中空纤维亲和膜对Hg2+动态等温吸附方程的基础上,利用C++语言编程,按Langmuir、Lang- muir—Freundlich和扩展的Langmuir 3个模型对吸附Hg2+实验数据进行拟合,分别检验了实验数据的拟合程度.这3个模型对实验数据都拟合较好;相对其它两个模型,扩展Langmuir模型提供了最好的拟合,从而推断出巯基中空纤维亲和膜对Hg2+的动态等温吸附是非完全的单分子层吸附.

【Abstract】 On the basis of dynamic isothermal adsorption, the three models for Langmuir, Langmuir-Freundlich and Ex-pended-Langmuir are used to fit the experimental data of Hg2 + adsorbed by the hollow fiber affinity membrane modified with mercapto, and the fitting degree of the three models to the experimental data is investigated by Language C + + . The results show that the three models can fit to the experimental data. Compare with other models, the Expended-Langmuir model gives the best fitting. Then it can be inferred that the dynamic isothermal adsorption of the hollow fiber affinity membrane modified with mercapto for Hg2 + is not complete monolayer adsorption.

【基金】 国家教育部科学技术研究重点资助项目(20501)
  • 【文献出处】 天津工业大学学报 ,Journal of Tianjin Polytechnic University , 编辑部邮箱 ,2006年02期
  • 【分类号】O647.31
  • 【下载频次】116
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