| 温度对Pu在膨润土中吸附的影响及热力学研究 |
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| 引用本文： | 宿吉龙,庹先国,冷阳春,岳萍.温度对Pu在膨润土中吸附的影响及热力学研究[J].科学技术与工程,2013,13(36). |
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| 作者姓名： | 宿吉龙 庹先国 冷阳春 岳萍 |
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| 作者单位： | 成都理工大学核技术与自动化工程学院,西南科技大学,成都理工大学核技术与自动化工程学院,成都理工大学核技术与自动化工程学院 |
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| 摘 要： | 通过静态吸附实验,探讨了高庙子膨润土、钙基膨润土、钠基膨润土和漂白土分别在293.15K、313.15K、333.15K条件下,不同钚浓度对膨润土吸附的影响,以及膨润土对钚吸附的相关热力学参数进行计算。结果表明：随着钚浓度的增大,膨润土吸附能力不断增大,但一定浓度后,吸附达到饱和；四种膨润土均很到的符合Freundlich等温吸附模型；通过计算热力学参数G、S和H,得出钚吸附是一个吸热自发的过程；四种膨润土的吸附能力由大到小是：钙基膨润土>高庙子膨润土>漂白土>钠基膨润土。
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| 关 键 词： | 关 键 词：膨润土 Pu 吸附行为 热力学 |
| 收稿时间： | 2013/7/29 0:00:00 |
| 修稿时间： | 2013/7/29 0:00:00 |
The Influence of Temperature on the Adsorption of Pu on Bentonite and TheThermodynamics Study |
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| Su Jilong,Tuo Xianguo,Leng Yangchun and Yue Ping.The Influence of Temperature on the Adsorption of Pu on Bentonite and TheThermodynamics Study[J].Science Technology and Engineering,2013,13(36). |
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| Authors: | Su Jilong Tuo Xianguo Leng Yangchun and Yue Ping |
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| Institution: | College of Nuclear Technology and Automation Engineering,Chengdu University of Technology,Chengdu,College of Nuclear Technology and Automation Engineering,Chengdu University of Technology,Chengdu |
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| Abstract: | The adsorption of Pu on GMZ-bentonite, Ca-bentonite, Na-bentonite and bleaching earth is studied in different the concentration of Pu at 293.15K, 313.15K and 333.15K, and the thermodynamics parameters for the adsorption of Pu were determined. The experimental results show the adsorption capacity of bentonite increased with increasing of the concentration of Pu, the adsorption will saturate when concentration reach certain value. The adsorption isotherms were simulated by Freundlich models. The thermodynamics date indicated that the adsorption reaction was exothermic and process of sorption. The order of the adsorption capacity of bentonites are Ca-bentonite> GMZ-bentonite> bleaching earth >Na-bentonite. |
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| Keywords: | bentonite Pu adsorption behavior thermodynamics |
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