| 巯基壳聚糖的合成、表征及其对Cu2+的吸附行为 |
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| 引用本文： | 陈锐,黄进,叶萌,何其庄.巯基壳聚糖的合成、表征及其对Cu2+的吸附行为[J].应用化工,2011,40(7):1125-1130. |
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| 作者姓名： | 陈锐 黄进 叶萌 何其庄 |
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| 作者单位： | 上海师范大学,生命与环境科学学院,上海,200234 |
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| 基金项目： | 国家自然科学基金项目，上海市重点学科建设项目，上海师范大学重点学科，上海师范大学一般科研项目 |
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| 摘 要： | 由简单方法合成巯基壳聚糖,通过FTIR、SEM、XPS、DTA-TG等技术对材料进行表征,实验结果表明,巯基乙酸的羧基分别与壳聚糖的氨基、醇羟基形成酰胺和巯基乙酸甲酯,从而使巯基功能团接枝在壳聚糖表面。吸附实验结果表明,在100 mL,20 mg/L的Cu2+水溶液中,温度为310 K,pH为5,吸附时间为12 min,吸附剂用量为50 mg时,吸附效果最好,去除率达到87%。巯基壳聚糖对Cu2+的吸附动力学可由拟二级反应模型拟合。
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| 关 键 词： | 巯基乙酸 壳聚糖 Cu2+ 吸附 |
Synthesis and characterization of sulfhydryl chitosan and it' s adsorption of Cu2+ |
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| CHEN Rui,HUANG Jin,YE Meng,HE Qi-zhuang.Synthesis and characterization of sulfhydryl chitosan and it' s adsorption of Cu2+[J].Applied chemical industry,2011,40(7):1125-1130. |
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| Authors: | CHEN Rui HUANG Jin YE Meng HE Qi-zhuang |
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| Affiliation: | CHEN Rui,HUANG Jin,YE Meng,HE Qi-zhuang (College of Life and Environment Science,Shanghai Normal University,Shanghai 200234,China) |
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| Abstract: | The sulfhydryl chitosan was synthesized by simple method,and the structure was characterized by FTIR,SEM,XPS and DTA-TG.The experimental results show that the carboxyl of thioglycolic acid react with the amino and hydroxy group of chitosan to form acidamide and acetic acid methyl ester,the thioglycolic successful grafts to the surface of the chitosan.The adsorption experiment results show that 100 mL,20 mg/L Cu2+solution,temperature 310 K,pH 5,adsorption time 12 min,dosage 50 mg.The degree of adsorption is ... |
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| Keywords: | thioglycolic acid chitosan Cu2 adsorption |
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