| 磁性水凝胶对腐殖酸的吸附研究 |
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| 引用本文： | 顾敦罡,饶品华,黄佳乐,李扬,朱丹.磁性水凝胶对腐殖酸的吸附研究[J].上海工程技术大学学报,2011,25(1):75-79. |
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| 作者姓名： | 顾敦罡 饶品华 黄佳乐 李扬 朱丹 |
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| 作者单位： | 上海工程技术大学化学化工学院,上海201620华东师范大学资源与环境科学学院,上海200062上海工程技术大学化学化工学院,上海,201620 |
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| 基金项目： | 上海市自然科学基金资助项目 |
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| 摘 要： | 介绍了磁性水凝胶的合成方法,研究其对水体中腐殖酸的吸附性能.结果表明,磁性水凝胶对水体中腐殖酸的吸附在5 h内达到吸附平衡,吸附动力学符合二级动力学方程,吸附机制为静电吸附;磁性水凝胶对腐殖酸的吸附量较高,最大吸附量为429.00 mg/g,吸附等温线可用Freundlich方程和Langmuir方程模拟;PH值对磁性水凝胶吸附腐殖酸的影响较小,而当溶液中有较高浓度(c)的电解质共存时,磁性水凝胶对腐殖酸的吸附受到抑制.
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| 关 键 词： | 腐殖酸 磁性水凝胶 吸附 |
Study on Adsorption of Humic Acid by Magnetic Hydrogel |
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| GU Dun-gang,RAO Pin-hua,HUANG Jia-le,LI Yang,ZHU Dan.Study on Adsorption of Humic Acid by Magnetic Hydrogel[J].Journal of Shanghai University of Engineering Science,2011,25(1):75-79. |
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| Authors: | GU Dun-gang RAO Pin-hua HUANG Jia-le LI Yang ZHU Dan |
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| Affiliation: | 1.College of Chemistry and Chemical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China;2.School of Resources and Environment Science,East China Normal University,Shanghai 200062,China) |
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| Abstract: | The synthesis method of magnetic hydrogel was introduced and its adsorption ability for humic acid（HA） was investigated.The results show that the adsorption of HA on magnetic hydrogel can reach equilibrium in 5 h,the adsorption kinetics fits the second-order kinetic model well,the electrostatic adsorption is main removal mechanism.Magnetic hydrogel has such a high adsorption capacity for HA that the maximal adsorption amount can reach 429.00 mg/g.The adsorption isotherm can be described by Freundlich and Langmuir equations.The pH value has only a slight effect on the adsorption of HA while the adsorption of HA will be inhibited with a higher concentration of electrolytes. |
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| Keywords: | humic acid（HA） magnetic hydrogel adsorption |
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