| 粘土矿物对胡敏酸的吸附行为研究 |
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| 引用本文： | 廖平凡,吴平霄,吴伟民,陈秋强,徐玉芬.粘土矿物对胡敏酸的吸附行为研究[J].矿物岩石地球化学通报,2009,28(3):272-277. |
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| 作者姓名： | 廖平凡 吴平霄 吴伟民 陈秋强 徐玉芬 |
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| 作者单位： | 华南理工大学,环境科学与工程学院,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，广东省科技计划项目，教育部新世纪优秀人才支持计划 |
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| 摘 要： | 以蒙脱石和高岭土为吸附剂,分别与胡敏酸反应,研究胡敏酸在蒙脱石和高岭石上的吸附行为,并运用红外光谱、热重和Zeta电位等分析方法,表征分析了吸附前后的粘土矿物.实验结果表明,吸附过程受胡敏酸的初始浓度和pH值等因素影响;胡敏酸对粘土矿物的吸附等温线符合Freundlich等温方程;表征分析表明两种粘土矿物与胡敏酸复合体的红外光谱出现了C-H振动吸收峰;粘土矿物与胡敏酸结合后Zeta电位下降.实验的结果将有助于进一步探明环境中粘土矿物对胡敏酸的吸附机理.
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| 关 键 词： | 蒙脱石 胡敏酸 高岭石 吸附 |
Study of the Sorption of Humic Acids on the Clays |
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| LIAO Ping-fan,WU Ping-xiao,WU Wei-min,CHEN Qiu-qiang,Xu Yu-fen.Study of the Sorption of Humic Acids on the Clays[J].Bulletin of Mineralogy Petrology and Geochemistry,2009,28(3):272-277. |
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| Authors: | LIAO Ping-fan WU Ping-xiao WU Wei-min CHEN Qiu-qiang Xu Yu-fen |
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| Institution: | LIAO Ping-fan,WU Ping-xiao,WU Wei-min,CHEN Qiu-qiang,Xu Yu-fenCollege of Environmental Sciences , Engingeering,South China University of Technology,Guangzhou 510640,China |
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| Abstract: | In present study,montmorillonite and kaolinite were selected as adsorbents to adsorb a humic acid(HA).The adsorption of humic acid on montmorillonite and kaolin was investigated and the characteristics of HA-clay were studied by Infrared Spectroscopy(IR),Thermo Gravimetry(TGA) and Zeta potential(Zeta).The results indicated that adsorption rate was significantly affected by the initial concentration of HA and solution pH;the adsorption isotherms of HA on clays were well fitted by the Freundlich equation;furt... |
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| Keywords: | montmorillonite humic acids kaolinite adsorption |
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