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《Journal of Guizhou University(Natural Science Edition)》 2009-02
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Adsorption of Lead Ion on Cucurbit[6] uril

LU Xiao-jun1,2,XUE Sai-feng2,TAO Zhu1,2,ZHU Qian-jiang1,2(1.Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province,Guizhou University,Guiyang 550025,China;2.Institute of Applied Chemistry,Guizhou University,Guiyang 550025,China)  
The kinetic,thermodynamic of the Lead Ion adsorpt on Cucurbit[6]uril was studied by using the AAS,the kinetics could described by the Pseudo-second order model effectively,the correlation coefficient(r) more than 0.99.The adsorption isotherms for lead ion follow the Freundlich isotherm model,the correlation coefficient(r) more than 0.97 in the rome Temperature.Studing the adsorption under the condition of pH =1~6,we find the adsorption rate is best in pH=6.0.get a excellent condition for simulation waste water containing Lead 1.00×10-2mol/l is treated by Static method at last.The results show that the absorption rate reach in 98.4% after the addition of the Cucurbit[6]uril 2.0 g/mmol.
【Fund】: 国家自然科学基金(20767001);; 贵州省省长基金(黔科合:十五字(2007)4002)
【CateGory Index】: X132
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