| Adsorption Behavior and Mechanism of Macroporous Phosphonic Acid Resin for Lu^3＋ |
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| 引用本文： | 王惠君,熊春华.Adsorption Behavior and Mechanism of Macroporous Phosphonic Acid Resin for Lu^3＋[J].兵工学报(英文版),2006,2(2):112-116. |
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| 作者姓名： | 王惠君 熊春华 |
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| 作者单位： | College of Marine Science and Technology Zhejian Ocean University，Zhoushan 316004 Zhejiang，China，College of Food Science，Biotechnology and Environmental Engineering，Zhejiang Gongshang University，Hangzhou 310035 Zhejiang，China |
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| 基金项目： | 浙江省自然科学基金
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浙江省教育局资助项目
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广东省中山市科技局资助项目 |
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| 摘 要： | The article is based on a research on the adsorption behavior and adsorption mechanism of macroporous phosphonic acid resin (PAR) for Lu3 and the influence of the medium's pH, adsorption temperature, adsorption time, etc on adsorbing Lu3 . The best value of medium's pH to the adsorption of PAR for Lu3 was found to be 4.92. The static adsorption maximum capacity of PAR for Lu3 is 220 mg· g-1. The thermodynamic adsorption parameters are respectively △H= 11.3 kJ·mol-1, △S =46.3 J·mol-1 ·K-1, △G = - 2.50 kJ·mol-1 and the apparent activity energy is Ea= 31.4 kJ· mol- 1. The adsorption behavior of PAR for Lu3 obeys the Freundlich isotherm. The apparent adsorption rate constant is k298 = 4.68 × 10-5 s-1. The coordinate ratio of the functional radical to Lu3 is approximately 4: 1. The best eluant is 1.0 mol· L- 1 HCl. The adsorption mechanism of PAR for Lu3 was separately confirmed by chemical analysis and IR spectra.
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| 关 键 词： | 镥 吸附装置 聚磷酸树脂 大孔性 功能材料 稀土元素 化合物 |
| 收稿时间： | 2005-07-20 |
Adsorption Behavior and Mechanism of Macroporous Phosphonic Acid Resin for Lu3+ |
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| WANG Hui-jun,XIONG Chun-hua.Adsorption Behavior and Mechanism of Macroporous Phosphonic Acid Resin for Lu3+[J].Journal of China Ordnance,2006,2(2):112-116. |
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| Authors: | WANG Hui-jun XIONG Chun-hua |
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| Abstract: | |
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| Keywords: | macroporous phosphonic acid resin adsorption behavior adsorption mechanism Lu3 Resin Phosphonic Acid Mechanism Behavior chemical analysis IR spectra coordinate ratio functional radical rate constant isotherm activity energy thermodynamic parameters static adsorption maximum capacity best value time |
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