| 壳聚糖-沸石杂化膜的制备及其对甲基橙的吸附 |
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| 引用本文： | 陈盛,罗志敏,刘燕.壳聚糖-沸石杂化膜的制备及其对甲基橙的吸附[J].环境工程学报,2012,6(5):1613-1618. |
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| 作者姓名： | 陈盛 罗志敏 刘燕 |
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| 作者单位： | 1. 福建师范大学福建分校,福清,350300
2. 福建师范大学环境科学与工程学院,福州,350007 |
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| 基金项目： | 福建省教育厅科技项目（JB09240）；福州市科技局项目（2010-G-110） |
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| 摘 要： | 采用物理共混法制备了壳聚糖-沸石杂化膜,用扫描电镜(SEM)和热重分析仪(TGA)对其进行表征,并系统地研究了壳聚糖-沸石杂化膜对甲基橙的吸附行为。结果表明,最佳质量配比为(沸石/壳聚糖)为1∶20;pH值对吸附的影响最为关键,在实验浓度的范围内对甲基橙溶液最大吸附量为974.05 mg/g。杂化膜对甲基橙的等温吸附行为符合Lang-muir模型,吸附动力学模式符合准二级动力学方程,考虑以化学吸附行为为主。杂化膜有良好的再生能力。
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| 关 键 词： | 沸石 壳聚糖 甲基橙 吸附 |
Preparation of chitosan-zeolite hybrid membrane and its adsorption to methyl orange |
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| Chen Sheng,Luo Zhimin and Liu Yan.Preparation of chitosan-zeolite hybrid membrane and its adsorption to methyl orange[J].Techniques and Equipment for Environmental Pollution Control,2012,6(5):1613-1618. |
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| Authors: | Chen Sheng Luo Zhimin and Liu Yan |
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| Institution: | 1.Fuqing Campuses of Fujian Normal University,Fuqing 350300,China; 2.College of Environmental Science and Engineering,Fujian Normal University,Fuzhou 350007,China) |
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| Abstract: | The hybrid membrane was prepared by chitosan and zeolite,then characterized by SEM and TG,and its adsorption performance on methyl orange was described.The best mass proportion(zeolite /chitosan) was 1∶20.The pH value was an important factor of the adsorption,the maximum adsorption capacity was up to 974.05 mg/g under the experimental conditions.The absorption isotherm conformed to Langmuir model.The adsorption of methyl orange by hybrid membrane fitted well to the pseudo-second-order model,and indicated a behaviour of chemical adsorption. |
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| Keywords: | zeolite chitosan methyl orange adsorption |
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