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质子化改性交联壳聚糖的制备及其吸附硫酸根离子的性能

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权雪婷, 李林波, 郭莹娟, 刘瑶, 薛娟琴. 质子化改性交联壳聚糖的制备及其吸附硫酸根离子的性能[J]. 环境工程学报, 2014, 8(8): 3228-3232.
引用本文: 权雪婷, 李林波, 郭莹娟, 刘瑶, 薛娟琴. 质子化改性交联壳聚糖的制备及其吸附硫酸根离子的性能[J]. 环境工程学报, 2014, 8(8): 3228-3232.
shu
Quan Xueting, Li Linbo, Guo Yingjuan, Liu Yao, Xue Juanqin. Preparation of protonated modified-chitosan and its adsorption properties for sulfate[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3228-3232.
Citation: Quan Xueting, Li Linbo, Guo Yingjuan, Liu Yao, Xue Juanqin. Preparation of protonated modified-chitosan and its adsorption properties for sulfate[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3228-3232.
shu

质子化改性交联壳聚糖的制备及其吸附硫酸根离子的性能

  • 1.

    西安建筑科技大学冶金工程学院, 西安 710055

  • 基金项目:

    国家自然科学基金资助项目（51278407）

    陕西省自然科学基金重点项目（2012JZ7003）

    陕西省科技统筹创新工程计划项目（2011KTDZ01-05-05）

    陕西省教育厅产业化培育项目（2013JC12）

  • 中图分类号: X703.1

Preparation of protonated modified-chitosan and its adsorption properties for sulfate

  • 1.

    School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

  • Fund Project:

  • 摘要: 以壳聚糖为原料，甲醛为氨基保护剂，戊二醛为交联剂，采用反相悬浮交联法制备交联壳聚糖，再对其进行质子化改性得到质子化改性交联壳聚糖吸附剂。通过正交实验对该吸附剂的制备条件进行优化，并对其吸附水中硫酸根（SO42-）的吸附等温特性和动力学进行研究，最后对制备和吸附过程进行能谱分析（EDS）并对吸附剂进行了再生实验。实验结果表明，交联反应的优化条件为：反应温度50℃、反应时间6 h、甲醛：戊二醛：壳聚糖为4.5：0.5：3（质量比）；该吸附过程符合Langmuir吸附等温模型，在25℃（298 K）下，吸附容量最大可达133.87 mg/g；吸附过程较好地符合拟二级动力学模型；EDS分析表明了交联反应、质子化改性和吸附反应均已发生；该吸附剂的再生性能良好，可以重复使用。
    Abstract: A novel absorbent was prepared by reverse suspension method with chitosan as the raw material, formaldehyde as the amino-group protective agent and glutaraldehyde as the crosslinking agent, and then it was protonated to make a novel adsorbent for sulfate from water. The preparation conditions of the adsorbent were optimized by orthogonal experiments and the isotherm and kinetics of the adsorption were investigated. The spectrum analysis (EDS) was used to analyze the adsorption. The adsorbent can be easily refreshed. The results show that the optimization of crosslinking conditions are determined as follows: reaction temperature of 50℃, reaction time of 6 h, formaldehyde:glutaraldehyde:chitosan of 4.5:0.5:3(the quality ratio). The equilibrium sorption process follows Langmuir isothermal isotherms well, and adsorption capacity is up to 133.87 mg/g at 25℃ (298 K). In addition, the adsorption process could be explained by the second-order kinetic model. EDS shows that the preparation and adsorption have occurred. The regeneration performance of the adsorbent is excellent and can be used repeatedly.
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  • 收稿日期:  2013-10-24
  • 刊出日期:  2014-07-31
权雪婷, 李林波, 郭莹娟, 刘瑶, 薛娟琴. 质子化改性交联壳聚糖的制备及其吸附硫酸根离子的性能[J]. 环境工程学报, 2014, 8(8): 3228-3232.
引用本文: 权雪婷, 李林波, 郭莹娟, 刘瑶, 薛娟琴. 质子化改性交联壳聚糖的制备及其吸附硫酸根离子的性能[J]. 环境工程学报, 2014, 8(8): 3228-3232.
shu
Quan Xueting, Li Linbo, Guo Yingjuan, Liu Yao, Xue Juanqin. Preparation of protonated modified-chitosan and its adsorption properties for sulfate[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3228-3232.
Citation: Quan Xueting, Li Linbo, Guo Yingjuan, Liu Yao, Xue Juanqin. Preparation of protonated modified-chitosan and its adsorption properties for sulfate[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3228-3232.
shu

质子化改性交联壳聚糖的制备及其吸附硫酸根离子的性能

  • 1. 西安建筑科技大学冶金工程学院, 西安 710055
  • 收稿日期:  2013-10-24
基金项目:

国家自然科学基金资助项目（51278407）

陕西省自然科学基金重点项目（2012JZ7003）

陕西省科技统筹创新工程计划项目（2011KTDZ01-05-05）

陕西省教育厅产业化培育项目（2013JC12）

摘要: 以壳聚糖为原料，甲醛为氨基保护剂，戊二醛为交联剂，采用反相悬浮交联法制备交联壳聚糖，再对其进行质子化改性得到质子化改性交联壳聚糖吸附剂。通过正交实验对该吸附剂的制备条件进行优化，并对其吸附水中硫酸根（SO42-）的吸附等温特性和动力学进行研究，最后对制备和吸附过程进行能谱分析（EDS）并对吸附剂进行了再生实验。实验结果表明，交联反应的优化条件为：反应温度50℃、反应时间6 h、甲醛：戊二醛：壳聚糖为4.5：0.5：3（质量比）；该吸附过程符合Langmuir吸附等温模型，在25℃（298 K）下，吸附容量最大可达133.87 mg/g；吸附过程较好地符合拟二级动力学模型；EDS分析表明了交联反应、质子化改性和吸附反应均已发生；该吸附剂的再生性能良好，可以重复使用。

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