| 软阳离子钾改性蒙脱石矿物对硝基苯的强化吸附实验研究 |
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| 引用本文： | 江强明,张姚娜,吴宏海.软阳离子钾改性蒙脱石矿物对硝基苯的强化吸附实验研究[J].岩石矿物学杂志,2011,30(6):1074-1080. |
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| 作者姓名： | 江强明 张姚娜 吴宏海 |
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| 作者单位： | 1. 闽西职业技术学院化学工程系,福建龙岩,364021
2. 华南师范大学化学与环境学院,广东广州,510006 |
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| 基金项目： | 国家自然科学基金资助项目，广东省自然科学基金资助项目 |
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| 摘 要： | 考察软阳离子钾改性蒙脱石在K+存在的条件下对硝基苯的强化吸附行为,详细分析比较了Henry和Fre-undlich方程对硝基苯吸附等温线的拟合结果,同时还进行了吸附热力学研究。实验结果表明,软阳离子钾对蒙脱石吸附硝基苯具有强化作用;硝基苯在蒙脱石上的吸附符合Freundlich和Henry方程,两模型方程线性拟合结果的相关系数均在0.96以上。热力学分析结果表明,硝基苯在蒙脱石上的吸附过程是一个自发的放热过程,说明蒙脱石对硝基苯的吸附主要由分配与EDA作用机制所控制。钾离子存在可为硝基苯吸附营造有利场所,不仅改善准入条件,同时增加某些吸附点位,从而促进并强化蒙脱石对硝基苯的吸附。
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| 关 键 词： | 蒙脱石 硝基苯 强化吸附 钾阳离子 |
| 收稿时间： | 2011/9/8 0:00:00 |
| 修稿时间： | 2011/10/11 0:00:00 |
Experimental research on intensified adsorption of soft K+ cation_modified montmorillonite mineral for nitrobenzene |
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| JIANG Qiang-ming,ZHANG Yao-na and WU Hong-hai.Experimental research on intensified adsorption of soft K+ cation_modified montmorillonite mineral for nitrobenzene[J].Acta Petrologica Et Mineralogica,2011,30(6):1074-1080. |
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| Authors: | JIANG Qiang-ming ZHANG Yao-na and WU Hong-hai |
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| Institution: | JIANG Qiang-ming1,ZHANG Yao-na2 and WU Hong-hai2 (1.Department of Chemical Engineering,West Fujian Vocational and Technical College,Longyan 364021,China,2.School of Chemistry and Environment,South China Normal University,Guangzhou 510006,China) |
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| Abstract: | The sorption behaviors of nitrobenzene(NB) onto the soft K+ cation modified montmorillonite(K-Mt) under the conditions of adding of K+ ion and varying reaction temperatures were investigated in this paper.The sorption kinetic experiments showed that the sorption equilibrium of NB could be reached within 8 h.A comparative analysis of the Henry and Freundlich equations was made to evaluate the sorption isotherms of NB onto the K-Mt,and some thermodynamic experiments were conducted to explore the sorption mech... |
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| Keywords: | montmorillonite nitrobenzene intensified adsorption potassium cation |
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