| 非均相聚砜螯合滤膜的制备及其对Cu~(2+)的吸附性能研究 |
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| 引用本文： | 王兵,裴广玲,杜启云,崔永芳.非均相聚砜螯合滤膜的制备及其对Cu~(2+)的吸附性能研究[J].高分子学报,2001,4(4):445-449. |
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| 作者姓名： | 王兵 裴广玲 杜启云 崔永芳 |
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| 作者单位： | 天津工业大学材料与化工学院, |
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| 摘 要： | 通过探讨共混比例、螯合树脂粒径及铸膜液温度对膜结构的影响 ,确定了最佳制膜工艺 ,用相转换法制备出对Cu2 + 具有大螯合容量的非均相螯合滤膜 .研究了螯合树脂颗粒粒径、盐溶液pH值和盐溶液浓度对膜螯合吸附量的影响 ,发现膜对Cu2 + 的最大吸附量可达 70 0 μg cm2 ,吸附行为满足Freundlich吸附等温式 .对膜进行动态螯合吸附测试表明该膜对Cu2 + 可实现吸附与解吸同步进行
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| 关 键 词： | 螯合树脂 聚砜 螯合滤膜 吸附 解吸 |
| 修稿时间： | 2000年7月28日 |
THE PREPARATION OF HETEROGENEOUS POLYSULFONE CHELATE FILTER MEMBRANES AND THEIR SORPTION PROPERTIES FOR Cu2+ |
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| WANG Bing,PEI Guangling,DU Qiyun,CUI Yongfang.THE PREPARATION OF HETEROGENEOUS POLYSULFONE CHELATE FILTER MEMBRANES AND THEIR SORPTION PROPERTIES FOR Cu2+[J].Acta Polymerica Sinica,2001,4(4):445-449. |
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| Authors: | WANG Bing PEI Guangling DU Qiyun CUI Yongfang |
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| Abstract: | Heterogeneous chelate filter membranes with high chelate capcity for Cu 2+ have been prepared by using a chelate resin D418 polysulfone(PSF).Various process parameters affecting the properties of the chelate membrane,such as the blending ratio,chelate resin grain size and temperature of solution casting have been wildly studied.The relationship among the chelate amount,pH value and the concentrations of the metallic ion solution were examined.Under appropriate conditions,the chelate filter membrane had a capcity of 700?μg/cm\+2 for Cu 2+ .Sorpting isotherm could be expressed by the Freundlich sorption model.The dynamic experiment indicated that the sorption and desorption could be realized simultaneously. |
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| Keywords: | Chelate resin Polysulfone Chelate filter membrane Sorption Desorption |
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