| 三聚磷酸二氢铝对Cs+的吸附动力学和热力学 |
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| 引用本文： | 陈东莲,白丽娟,黄增尉,马少妹,袁爱群.三聚磷酸二氢铝对Cs+的吸附动力学和热力学[J].环境科学与技术,2011,34(3):105-108,148. |
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| 作者姓名： | 陈东莲 白丽娟 黄增尉 马少妹 袁爱群 |
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| 作者单位： | 1. 桂林工学院南宁分院,广西,南宁,530001
2. 广西民族大学化学与生态工程学院,化学与生物转化过程新技术重点实验室,广西,南宁,530006 |
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| 基金项目： | 广西高校优秀人才资助项目，广西教育厅项目，广西科技厅科技开发项目 |
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| 摘 要： | 采用静态吸附法研究三聚磷酸二氢铝吸附铯离子的动力学和热力学.考察了温度、浓度、粒径、pH和搅拌速度对吸附过程的影响,通过不同温度下的吸附等温热力学性能的变化,计算了吸附焓、吸附熵和自由能.结果表明:在实验范围内,三聚磷酸二氢铝对铯离子的吸附符合Langmuir吸附等温办程式,过程受颗粒扩散控制,反应级数为1.03,29...
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| 关 键 词： | 三聚磷酸二氢铝 铯离子 热力学 动力学 |
Kinetics and Thermodynamics of Cs~+ on Aluminum Dihydrogen Tripolyphosphate |
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| CHEN Dong-lian,BAI Li-juan,HUANG Zeng-wei,MA Shao-mei,YUAN Ai-qun.Kinetics and Thermodynamics of Cs~+ on Aluminum Dihydrogen Tripolyphosphate[J].Environmental Science and Technology,2011,34(3):105-108,148. |
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| Authors: | CHEN Dong-lian BAI Li-juan HUANG Zeng-wei MA Shao-mei YUAN Ai-qun |
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| Institution: | CHEN Dong-lian1,BAI Li-juan2,HUANG Zeng-wei2,MA Shao-mei2,YUAN Ai-qun2(1.Guilin University of Technology at Nanning,Nanning 530001,China,2.Key Laboratory of New Technology of Chemical and Biological Transformation Processes,Department of Chemistry and Ecology Engineering,Guangxi University for Nationalities,Nanning 530006,China) |
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| Abstract: | A static absorption experiment was conducted to study Cs+ adsorption on aluminum dihydrogen tripolyphosphate,involving examination of various physico-chemical parameters pH,temperature and stirring velocity that might affect the adsorption.Enthalpy,entropy and Gibbs free energy of the adsorption were calculated through changing thermodynamic properties at different temperatures.It was found that being a spontaneous and endothermic process,adsorption of Cs+ on aluminum dihydrogen tripolyphosphate fit the Lan... |
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| Keywords: | aluminum dihydrogen tripolyphosphate Cs kinetics thermodynamics |
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