| ZSM-5分子筛对水中苯胺吸附的动力学探讨 |
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| 引用本文： | 陈旭红,陈雪芳. ZSM-5分子筛对水中苯胺吸附的动力学探讨[J]. 江苏技术师范学院学报, 2011, 17(10): 39-44 |
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| 作者姓名： | 陈旭红 陈雪芳 |
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| 作者单位： | 江苏技术师范学院化学与环境工程学院,江苏常州,213001 |
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| 摘 要： | 以ZSM-5分子筛作为吸附剂处理苯胺废水,实测了分子筛用量、吸附时间、溶液pH和温度对苯胺吸附效率的影响,并对其吸附动力学进行探讨。用Langmuir、Freundlich和Dubinin-Radushkevick模型对吸附等温线进行拟合,发现Langmiur、Freundlich吸附等温式能很好描述吸附规律。吸附动力学过程更符合准二级动力学模型。
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| 关 键 词： | 苯胺 分子筛 吸附 吸附动力学 |
The Discussion of the Adsorption Kinetics about ZSM-5 Zeolite to Aniline in Wastewater |
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| CHEN Xu-hong,CHEN Xue-fang. The Discussion of the Adsorption Kinetics about ZSM-5 Zeolite to Aniline in Wastewater[J]. Journal of Jiangsu Teachers University of Technology, 2011, 17(10): 39-44 |
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| Authors: | CHEN Xu-hong CHEN Xue-fang |
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| Affiliation: | (School of Chemical and Environmental Engineering,Jiangsu Teachers University of Technology,Changzhou 213001,China) |
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| Abstract: | This paper introduces the use of ZSM-5 zeolite as the adsorbent to processing the wastewater of aniline,and to study the amount of molecular sieve at room temperature,adsorption time,pH of solution,temperature on the adsorption efficiency of aniline.The adsorption kinetics were also discussed.Langmuir,Freundlich and Dubinin-Radushkevick isotherms were used to fit the adsorption equilibrium data and the adsorption process followed the models of Langmuir and Freundlich.The kinetics data were fitted better with the pseudo-second-order kinetic model. |
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| Keywords: | aniline ZSM-5 zeolite adsorption adsorption kinetics |
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