| 菌丝体表面分子印迹壳聚糖吸附剂对Cr3+的吸附性能研究 |
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| 引用本文： | 阳奇,邓新华,郑娜,苏海佳,谭天伟.菌丝体表面分子印迹壳聚糖吸附剂对Cr3+的吸附性能研究[J].环境污染与防治,2006,28(1):14-16,27. |
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| 作者姓名： | 阳奇 邓新华 郑娜 苏海佳 谭天伟 |
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| 作者单位： | 1. 北京化工大学生命科学与技术学院,北京,100029
2. 河北省辛集市制革工业区管理委员会环保管理处,河北,辛集,052360 |
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| 基金项目： | 中国科学院资助项目
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北京市自然科学基金
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国家高技术研究发展计划(863计划)
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国家科技攻关项目 |
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| 摘 要： | 菌丝体表面分子印迹吸附剂所保留的印迹对过渡金属离子有着良好的吸附作用,以Cr3 作为吸附离子,系统研究了该吸附剂的吸附特性和影响因素.结果表明:吸附剂对Cr3 的饱和吸附容量可达60 mg/g;其吸附行为满足Langmuir方程式.初始浓度为200 mg/L时,最佳吸附pH在3～4,吸附容量可达到50 mg/g左右,离子强度对吸附没有影响,用0.5 mol/L硝酸或硫酸解吸Cr3 ,解吸率在90%以上.
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| 关 键 词： | 分子印迹 壳聚糖 铬(Ⅲ) 吸附特性 |
| 收稿时间： | 2005-11-08 |
| 修稿时间： | 2005-11-08 |
Removal of Cr3+ by the surface molecularly imprinted adsorbent by penicillium chysogenum mycelium in wastewater |
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| Yang Qi,Deng Xinhua,Zheng Na,Su Haijia,Tan Tianwei.Removal of Cr3+ by the surface molecularly imprinted adsorbent by penicillium chysogenum mycelium in wastewater[J].Environmental Pollution & Control,2006,28(1):14-16,27. |
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| Authors: | Yang Qi Deng Xinhua Zheng Na Su Haijia Tan Tianwei |
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| Institution: | 1. (Collegeof Life Science and Technology ,BUCT, Beijing 100029; 2. Department of Environmental Protection of Xin Ji City, He Bei Province, Xinji Hebei 052360 |
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| Abstract: | The surface molecularly imprinted adsorbent synthesized by the method of molecular imprinting technology has been proved to be excellent to adsorb transition metal ions, especially in the removal of Cr 3+.The results show that the maximum adsorption capacity for Cr 3+ was about 60 mg/g and its adsorption behavior follows the equation of Langmuir. The absorption capacity is 50 mg/g when the initial concentration of Cr 3+ was 200 mg/g at pH 3~4.The ionic strength had negligible effect on the adsorption. The saturated absorbent can be desorbed by 0.5 mol/L nitric acid or sulfuric acid solution, with a 90% desorption rate of Cr 3+. |
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| Keywords: | Molecular imprinting Chitosan Chromium Adsorption characteristic |
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