| 水溶液中的SO42-,NO3-在有机改性凹凸棒土上的竞争吸附行为 |
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| 引用本文： | 董蕊,刘元法,黄健花,王兴国.水溶液中的SO42-,NO3-在有机改性凹凸棒土上的竞争吸附行为[J].硅酸盐通报,2011,30(5):1059-1063,1071. |
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| 作者姓名： | 董蕊 刘元法 黄健花 王兴国 |
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| 作者单位： | 江南大学食品学院,无锡,214122 |
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| 基金项目： | 国家自然科学基金(No.50902060); 江苏省自然科学基金(No.BE2009014); 江苏省凹土重点实验室基金(No.HPK200902) |
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| 摘 要： | 本文研究了水溶液中SO42-和NO3-在有机改性凹凸棒土上的单组分吸附行为和竞争吸附行为,提出了凹凸棒土的改性以及吸附阴离子的机理.结果表明表面活性剂改性凹凸棒土对SO42-的吸附量大于NO3-,单组分吸附时对Freundlich和Langmuir方程拟合较好,竞争吸附时用LCA模型(Langmuir Competit...
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| 关 键 词： | 有机改性 凹凸棒土 单组分吸附 竞争吸附 |
Competitive Adsorption Behavior of SO_4~(2-), NO_3~- onto Surfactant-modified Palygorskite |
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| DONG Rui,LIU Yuan-fa,HUANG Jian-hua,WANG Xing-guo.Competitive Adsorption Behavior of SO_4~(2-), NO_3~- onto Surfactant-modified Palygorskite[J].Bulletin of the Chinese Ceramic Society,2011,30(5):1059-1063,1071. |
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| Authors: | DONG Rui LIU Yuan-fa HUANG Jian-hua WANG Xing-guo |
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| Affiliation: | DONG Rui,LIU Yuan-fa,HUANG Jian-hua,WANG Xing-guo(School of Food Science,Jiangnan University,Wuxi 214122,China) |
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| Abstract: | The adsorption of sulfate ions and nitrate ions onto surfactant-modified palygorskite both in single component system and two competitive system were studied and the modifying and anions adsorbing mechanisms of surfactant-modified palygorskite were proposed.The results showed that SO2-4 had a more adsorptive capacity than NO-3,and both of them are fitted to not only Freundlich isotherm but also Langmuir isotherm,while only Langmuir Competitive Adsorption(LCA) can be fitted in two competitive system and can ... |
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| Keywords: | surfactant-modified palygorskite single component adsorption competitive adsorption |
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