| 胺化木质素对水中Cu（Ⅱ）、Cd（Ⅱ）的吸附 |
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| 引用本文： | 周艳,王宗芹,孙莉,罗婷.胺化木质素对水中Cu（Ⅱ）、Cd（Ⅱ）的吸附[J].环境污染治理技术与设备,2013(10):3953-3957. |
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| 作者姓名： | 周艳 王宗芹 孙莉 罗婷 |
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| 作者单位： | 绵阳师范学院化学与化学工程学院,绵阳621000 |
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| 基金项目： | 绵阳师范学院自然科学研究项目（2011A02）;四川省教育厅自然科学研究项目（13ZB0124） |
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| 摘 要： | 以胺化木质素作吸附剂对水中Cu2＋、Cd2＋的去除进行了研究，主要考察了吸附时间、溶液pH值、温度和金属离子初始浓度对吸附去除率的影响，并研究了其吸附等温线和动力学。结果表明，胺化木质素能有效去除水溶液中的Cu2＋、Cd2＋，且对Cd2＋的吸附能力大于Cu2＋吸附动力学符合准二级动力学方程，吸附等温线均可以很好地用Langmuir方程描述。
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| 关 键 词： | 胺化木质素 Cu（Ⅱ） Cd（Ⅱ） 吸附性能 |
Adsorption of Cu（ Ⅱ）, Cd（Ⅱ） in aqueous solutions using aminated lignin |
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| Zhou Yan,Wang Zongqin,Sun Li,Luo Ting.Adsorption of Cu（ Ⅱ）, Cd（Ⅱ） in aqueous solutions using aminated lignin[J].Techniques and Equipment for Environmental Pollution Control,2013(10):3953-3957. |
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| Authors: | Zhou Yan Wang Zongqin Sun Li Luo Ting |
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| Institution: | ( College of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang 621000 |
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| Abstract: | The removal of Cu（Ⅱ） and Cd（Ⅱ） from aqueous solutions using aminated lignin were investiga- ted in detail. Batch adsorption experiments for metal ion removal efficiency on aminated lignin were performed on factors of contact time, initial pH, temperature and initial metal ion concentration. Kinetic and equilibrium iso- therm models were also explored. The results showed that the aminated lignin is a promising sorbent for Cu（Ⅱ） and Cd（Ⅱ） in water, the removal efficiency on Cd（Ⅱ） is better than Cu（Ⅱ）. The adsorption kinetics were well described by pseudo-second-order model. Furthermore, the experimental data were best described by the Lang- muir isotherm model. |
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| Keywords: | lignin Cu（Ⅱ） Cd（Ⅱ） adsorption performance |
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