| 乙二胺四乙酸酐修饰玉米芯对阳离子染料的吸附行为 |
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| 引用本文： | 邢云,朱会敏,吴婷.乙二胺四乙酸酐修饰玉米芯对阳离子染料的吸附行为[J].安阳师范学院学报,2011(2):110-114. |
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| 作者姓名： | 邢云 朱会敏 吴婷 |
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| 作者单位： | 安阳师范学院化学与化工学院; |
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| 基金项目： | 河南省教育厅自然科学研究计划项目(2010A150002) |
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| 摘 要： | 本文选择乙二胺四乙酸酐（EDTAD）作为修饰剂对玉米芯进行化学接枝改性,同时对修饰玉米芯的吸附行为进行了研究。实验数据表明与未修饰玉米芯相比,EDTAD修饰玉米芯对两种阳离子染料的吸附容量明显增加。吸附等温线实验表明,Langmuir模型可较好描述此吸附过程,动力学实验表明,准二级方程适合描述此吸附过程。除此之外,还探讨了这种改性玉米芯的再生率。
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| 关 键 词： | 生物吸附 乙二胺四乙酸酐 玉米芯 亚甲基蓝 中性红 |
Adsorption of Methylene Blue and Neutral Red on EDTAD Modified Corncob |
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| XING Yun,ZHU Hui-min,WU Ting.Adsorption of Methylene Blue and Neutral Red on EDTAD Modified Corncob[J].Journal of Aayang Teachers College,2011(2):110-114. |
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| Authors: | XING Yun ZHU Hui-min WU Ting |
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| Institution: | XING Yun,ZHU Hui-min,WU Ting(School of Chemistry & Chemical Engineering,Anyang Normal University,Anyang 455002,China) |
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| Abstract: | A modified corncob was prepared by grafting EDTAD onto the surface of corncob.The effect of pH,adsorption time,concentration of cationic dyes and temperature to the adsorption of the modified corncob with methylene blue and neutral red were studied.The adsorption curves were fitted better with Langmuir isotherm and the result indicated that the adsorption reaction were monolayer.The kinetics for MB and NR followed the pseudo-second order kinetics.Compared with corncob,the modified corncob has the higher ads... |
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| Keywords: | EDTAD Adsorption Corncob Methylene blue Neutral red |
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