乙二胺丙酰化交联壳聚糖微球对甲基橙的吸附性能

doi:10.11949/j.issn.0438-1157.20161439

化工学报 ›› 2017, Vol. 68 ›› Issue (3): 1253-1261.DOI: 10.11949/j.issn.0438-1157.20161439

• 材料化学工程与纳米技术 • 上一篇下一篇

乙二胺丙酰化交联壳聚糖微球对甲基橙的吸附性能

赵世鹏^1,2, 冯宗财², 袁爽^1,2, 宋秀美², 梁楚欣², 刘芳¹

1 华南理工大学材料科学与工程学院, 广东广州 510640;
2 岭南师范学院化学化工学院, 广东高校新材料工程技术开发中心, 广东湛江 524048

收稿日期:2016-10-11 修回日期:2016-11-28 出版日期:2017-03-05 发布日期:2017-03-05
通讯作者: 冯宗财,fengzongcai921@163.com;刘芳,mcfliu@126.com
基金资助:
广东省自然科学基金项目（S2011010001544）；高分子材料工程国家重点实验室开放课题基金项目（KF201208）；国家星火计划项目（2012GA780015）；湛江市科技计划项目（2015A02008）。

Adsorption performance of ethylenediamine propionyl crosslinked chitosan microspheres to methyl orange

ZHAO Shipeng^1,2, FENG Zongcai², YUAN Shuang^1,2, SONG Xiumei², LIANG Chuxin², LIU Fang¹

1 School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China;
2 Development Center for New Materials Engineering & Technology in Universities of Guangdong, School of Chemistry and Chemical Engineering, Lingnan Normal University, Zhanjiang 524048, Guangdong, China

Received:2016-10-11 Revised:2016-11-28 Online:2017-03-05 Published:2017-03-05
Contact: 10.11949/j.issn.0438-1157.20161439
Supported by:
supported by the Natural Science Foundation of Guangdong Province (S2011010001544),the Open Foundation of State Key Laboratory of Polymer Materials Engineering (KF201208),the National Spark Program Project (2012GA780015) and the Science and Technology Plan Projects of Zhanjiang City (2015A02008).

摘要/Abstract

摘要：

通过丙烯酰化交联壳聚糖微球（AGCS）上的丙烯酰基团与乙二胺的Michael加成反应，制备乙二胺丙酰化交联壳聚糖微球（EAGCS）。分别采用傅里叶变换红外光谱（FT-IR）、X射线光电子能谱（XPS）和X射线衍射（XRD）表征了EAGCS的结构，利用激光粒度分析仪进行了粒径分布分析，考察了甲基橙（MO）溶液pH、温度、浓度和EAGCS用量对EAGCS吸附性能的影响。结果表明：EAGCS为球形，微球的体积平均粒径为57.4 μm，粒径分布系数1.53；在最佳条件下，EAGCS的吸附去除率为99.6%，吸附容量可达545.40 mg·g^-1，吸附过程属于自发放热过程，吸附动力学符合二级动力学，吸附过程可采用Langmuir和Freundlich等温吸附模型来描述。

关键词: 壳聚糖, 交联壳聚糖微球, 制备, 甲基橙, 吸附, 模型

Abstract:

By propylene acylation crosslinked chitosan microspheres (AGCS) reacting with ethylenediamine, the ethylenediaminepropionyl crosslinked chitosan microspheres (EAGCS) with an abundant of amine groups were prepared. The structure of EAGCS was characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction analysis (XRD) respectively. The particle size was identified by laser particle size analyzer. The effects of the pH, temperature, concentration and EAGCS dosage of methyl orange(MO) solution on adsorption performance were also investigated systematically. The results show that the structure of EAGCS with spherical morphology consistents with expected design structure, the volume average particle size of EAGCS is 57.4 μm and the particle size distribution coefficient is 1.53. It's also found that the highest adsorption capacity and highest removal rate are up to 545.40 mg·g^-1 and 99.6% respectively under the optimal conditions. Furthermore, the adsorption thermodynamics studies indicate that the adsorption is a spontaneous as well as exothermic process, also the kinetic and isothermal adsorption model studies suggest that this adsorption kinetics is pseudo-second-order, which is fit to Langmuir and Freundlich isothermal adsorption model.

Key words: chitosan, crosslinked chitosan microspheres, preparation, methyl orange, adsorption, model

中图分类号:

O636.1

赵世鹏, 冯宗财, 袁爽, 宋秀美, 梁楚欣, 刘芳. 乙二胺丙酰化交联壳聚糖微球对甲基橙的吸附性能[J]. 化工学报, 2017, 68(3): 1253-1261.

ZHAO Shipeng, FENG Zongcai, YUAN Shuang, SONG Xiumei, LIANG Chuxin, LIU Fang. Adsorption performance of ethylenediamine propionyl crosslinked chitosan microspheres to methyl orange[J]. CIESC Journal, 2017, 68(3): 1253-1261.

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乙二胺丙酰化交联壳聚糖微球对甲基橙的吸附性能

Adsorption performance of ethylenediamine propionyl crosslinked chitosan microspheres to methyl orange

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