| 羧化改性壳聚糖微球的制备及吸附硝基酚的性能 |
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| 引用本文： | 张兴松,李明春,辛梅华,谢英,苏丽正.羧化改性壳聚糖微球的制备及吸附硝基酚的性能[J].化工进展,2007,26(11):1654-1658. |
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| 作者姓名： | 张兴松 李明春 辛梅华 谢英 苏丽正 |
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| 作者单位： | 华侨大学材料科学与工程学院,福建省高校功能材料重点实验室,福建,泉州,362021;华侨大学材料科学与工程学院,福建省高校功能材料重点实验室,福建,泉州,362021;华侨大学材料科学与工程学院,福建省高校功能材料重点实验室,福建,泉州,362021;华侨大学材料科学与工程学院,福建省高校功能材料重点实验室,福建,泉州,362021;华侨大学材料科学与工程学院,福建省高校功能材料重点实验室,福建,泉州,362021 |
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| 基金项目： | 福建省自然科学基金资助项目(No.E0540001) |
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| 摘 要： | 采用反相悬浮环氧氯丙烷交联、氯乙酸羧甲基化制备交联羧化壳聚糖微球,用红外光谱和扫描电镜对微球进行表征,并用于2,4-二硝基苯酚的吸附研究。考察了吸附时间、溶液pH值、酚的浓度和NaCl等因素对2,4-二硝基苯酚吸附的影响。结果表明,羧化改性交联壳聚糖微球具有较好的耐酸碱性能,对2,4-二硝基苯酚有良好的吸附性能,在pH值为3.6条件下,吸附在瞬间就能达到平衡,吸附量达230 mg.g-1,吸附符合Freundlich等温方程。
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| 关 键 词： | 改性壳聚糖 微球 吸附 2 4-二硝基苯酚 |
| 文章编号： | 1000-6613(2007)11-1654-05 |
| 修稿时间： | 2007年8月15日 |
Preparation of modified chitosan microspheres and adsorption for dinitrophenol |
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| ZHANG Xingsong,LI Mingchun,XIN Meihua,XIE Ying,SU Lizheng.Preparation of modified chitosan microspheres and adsorption for dinitrophenol[J].Chemical Industry and Engineering Progress,2007,26(11):1654-1658. |
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| Authors: | ZHANG Xingsong LI Mingchun XIN Meihua XIE Ying SU Lizheng |
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| Abstract: | Chitosan microspheres were prepared by the inverse phase suspension method.The structure of microspheres was characterized with FTIR and SEM,and the adsorption for 2,4-dinitrophenol was investigated.The effects of adsorption time,pH,amount of sodium and concentration of 2,4-dinitrophenol on the adsorption efficiency of 2,4-dinitrophenol were studied.The experimental results indicated that microspheres were insoluble in acidic and basic solutions,and were able to adsorb 2,4-dinitrophenol very well.In the solution of pH 3.6,the adsorption reached 230 mg.g-1 instantaneously.The adsorption data of 2,4-dinitrophenol on the modified chitosan microspheres was fitted into the Freundlich isotherms. |
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| Keywords: | modified chitosan microsphere absorption 2 4-dinitrophenol |
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