| 蒙脱石与滑石矿物对菲吸附-解吸行为的对比研究 |
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| 引用本文： | 刘晓华,吴宏海,管玉峰,曾丽璇,邓达义,何广平.蒙脱石与滑石矿物对菲吸附-解吸行为的对比研究[J].矿物岩石,2011,31(3). |
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| 作者姓名： | 刘晓华 吴宏海 管玉峰 曾丽璇 邓达义 何广平 |
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| 作者单位： | 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(4107203440773080); 广东省自然科学基金(10151053101000028) |
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| 摘 要： | 采用批量处理平衡实验,考察蒙脱石与滑石矿物对菲的吸附解吸行为。采用Henry和Freundlich方程对其吸附等温线进行分析比较,并着重考察软阳离子K+对上述两种矿物吸附菲的影响机制。研究结果表明:蒙脱石对菲的吸附等温线表现出明显的非线性,吸附/解吸有滞后现象,Freundlich方程最符合其吸附/解吸曲线;滑石吸附菲的能力较之蒙脱石的强,且吸附呈线性,其吸附曲线与Henry方程吻合程度最好。此外,随着溶液中K+离子浓度增加,蒙脱石吸附菲的能力增强,而滑石吸附菲的能力减弱,说明软阳离子K+对蒙脱石吸附菲有明显的强化作用,而对滑石吸附菲却有抑制作用。说明黏土矿物内部结构与表面理化性质控制着污染物的吸附-解吸环境行为,从而影响着PAHs等污染物的迁移转化。
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| 关 键 词： | 蒙脱石 滑石 吸附-解吸 K 离子 |
COMPARISON OF SORPTION-DESORPTION BEHAVIORS OF BOTH MONTMORILLONITE AND TALC MINERALS FOR PHENANTHRENE |
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| LIU Xiao-hua,WU hong-hai,GUAN Yu-feng,ZENG Li-xuan,DENG Da-yi,HE Guang-ping.COMPARISON OF SORPTION-DESORPTION BEHAVIORS OF BOTH MONTMORILLONITE AND TALC MINERALS FOR PHENANTHRENE[J].Journal of Mineralogy and Petrology,2011,31(3). |
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| Authors: | LIU Xiao-hua WU hong-hai GUAN Yu-feng ZENG Li-xuan DENG Da-yi HE Guang-ping |
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| Institution: | LIU Xiao-hua,WU hong-hai,GUAN Yu-feng,ZENG Li-xuan DENG Da-yi,HE Guang-ping School of Chemistry and environment,South China Normal University,Guangzhou 510006,China |
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| Abstract: | Batch methodological experiments were conducted to study the sorption and desorption behaviors of both montmorillonite and talc for phenanthrene.The study was focused on the effect of soft cation K+ in solution on the sorption abilities of minerals,which were analyzed and compared with Henry and Freundlich equation.The research experimental results showed that sorption-desorption isotherms of montmorillonite for phenanthrene behaved distinct nonlinearity and presented sorption-desorption hysteresis,and it c... |
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| Keywords: | montmorillonite talc sorption-desorption K cation |
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