| 载镧偕胺肟基纤维除氟性能研究 |
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| 引用本文： | 唐思远,赵亮,王静.载镧偕胺肟基纤维除氟性能研究[J].化学通报,2012(9):852-855. |
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| 作者姓名： | 唐思远 赵亮 王静 |
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| 作者单位： | 郑州大学化工与能源学院;河南省科学院化学研究所有限公司 |
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| 基金项目： | 国家自然科学基金青年基金项目(21107021);河南省国际科技合作项目(114300510020)资助 |
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| 摘 要： | 本文将稀土元素镧(Ⅲ)负载于偕胺肟基纤维上制备成载镧偕胺肟基纤维吸附剂,探讨该纤维吸附剂对水溶液中氟离子的吸附性能。研究结果表明,吸附最佳pH范围为5～7,在较宽的范围4～10之间也能显示出较高的除氟率;其吸附等温线符合Langmuir方程,最大吸附容量为40.1mg/g;吸附动力学可用准二级速率方程描述。
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| 关 键 词： | 偕胺肟基纤维 镧 除氟 吸附 |
Adsorptive Properties of Fluoride Ion on Lanthanum-loaded Amidoxime Chelating Fiber |
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| Tang Siyuan,Zhao Liang,Wang Jing.Adsorptive Properties of Fluoride Ion on Lanthanum-loaded Amidoxime Chelating Fiber[J].Chemistry,2012(9):852-855. |
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| Authors: | Tang Siyuan Zhao Liang Wang Jing |
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| Institution: | 1School of Chemical Engineering and Energy,Zhengzhou University,Zhengzhou 450001; 2Henan Institute for Chemistry,Henan Academy of Sciences,Zhengzhou 450002) |
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| Abstract: | Lanthanum(Ⅲ)-loaded Amidoxime chelating fiber was prepared for removing fluoride from aqueous solutions.Experimental results indicated that the optimum pH range for fluoride adsorption was 5~7 and the adsorbent also showed high defluoridation capacity around pH 4~10.The adsorption isotherms can be described by the Langmuir equation and the estimated maximum adsorption capacity was 40.1mg/g.The adsorption kinetics can be well fitted by the pseudo-second-order rate model. |
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| Keywords: | Amidoxime chelating fiber Lanthanum(III) Defluoridation Adsorption |
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