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锆(Ⅳ)负载交联壳聚糖吸附硫酸根的性能

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郭莹娟, 薛娟琴, 毕强, 杜业威. 锆(Ⅳ)负载交联壳聚糖吸附硫酸根的性能[J]. 环境工程学报, 2013, 7(6): 2019-2024.
引用本文: 郭莹娟, 薛娟琴, 毕强, 杜业威. 锆(Ⅳ)负载交联壳聚糖吸附硫酸根的性能[J]. 环境工程学报, 2013, 7(6): 2019-2024.
shu
Guo Yingjuan, Xue Juanqin, Bi Qiang, Du Yewei. Adsorption of sulfate onto Zr(Ⅳ) loaded cross-linked chitosan[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2019-2024.
Citation: Guo Yingjuan, Xue Juanqin, Bi Qiang, Du Yewei. Adsorption of sulfate onto Zr(Ⅳ) loaded cross-linked chitosan[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2019-2024.
shu

锆(Ⅳ)负载交联壳聚糖吸附硫酸根的性能

  • 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课题(2011KTDZ01-05-05)

  • 中图分类号: X703.1

Adsorption of sulfate onto Zr(Ⅳ) loaded cross-linked chitosan

  • 1.

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

  • Fund Project:

  • 摘要: 以甲醛、苯甲醛为交联剂,制备交联壳聚糖树脂,再与锆(Ⅳ)离子反应制备锆负载交联壳聚糖吸附剂。采用静态吸附法考察了该吸附剂对水中硫酸根离子(SO42-)的吸附性能。实验发现,吸附时间2 h,SO42-溶液初始浓度500 mg/L,pH值3.0,溶液温度35℃为较优的吸附条件;吸附过程符合Langmuir等温吸附模型,属于优惠吸附型,吸附容量可达78.65 mg/g;吸附过程较好地符合拟二级动力学模型;锆负载前后交联壳聚糖对硫酸根的吸附量提高了约4.5倍;该吸附剂具有良好的耐酸性和再生性能。
    Abstract: A novel absorbent was prepared by cross-linking chitosan with formaldehyde and benzaldehyde followed by loaded with Zirconium. This chitosan-based material was employed as an absorbent to remove sulfate ion from aqueous solution, and its performance was investigated through batch experiments. The experimental results show that the optimum conditions of adsorption are as follows: adsorption time of 2 h, initial sulfate ion concentration of 500 mg/L, temperature of 35℃ and pH of 3.0. The equilibrium sorption process follows Langmuir isotherms well, and indicates a favorable adsorption towards SO42- with adsorption capacity of 78.65 mg/g. In addition, the adsorption process could be simulated by the second-order kinetic model. It is also showed that the adsorption capacity of Zr-loaded chitosan is 4.5 times more than that of non-loaded one, the absorbent has good acid resistance and can be reused.
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    [7] 朱华跃,蒋茹,钱勇兴. 质子化交联壳聚糖颗粒对水体中硝酸盐的吸附去除作用.安徽农业科学,2008,36(7):2919-2921 Zhu H. Y., Jiang R., Qian Y. X., et al. Study on the adsorptiona and removal of protonated cross-linked chitosan granules to nitrate in water body. Journal of Anhui Agri.Sci., 2008,36(7):2919-2921(in Chinese)
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  • 收稿日期:  2012-12-18
  • 刊出日期:  2013-06-11
郭莹娟, 薛娟琴, 毕强, 杜业威. 锆(Ⅳ)负载交联壳聚糖吸附硫酸根的性能[J]. 环境工程学报, 2013, 7(6): 2019-2024.
引用本文: 郭莹娟, 薛娟琴, 毕强, 杜业威. 锆(Ⅳ)负载交联壳聚糖吸附硫酸根的性能[J]. 环境工程学报, 2013, 7(6): 2019-2024.
shu
Guo Yingjuan, Xue Juanqin, Bi Qiang, Du Yewei. Adsorption of sulfate onto Zr(Ⅳ) loaded cross-linked chitosan[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2019-2024.
Citation: Guo Yingjuan, Xue Juanqin, Bi Qiang, Du Yewei. Adsorption of sulfate onto Zr(Ⅳ) loaded cross-linked chitosan[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2019-2024.
shu

锆(Ⅳ)负载交联壳聚糖吸附硫酸根的性能

  • 1. 西安建筑科技大学冶金工程学院, 西安 710055
  • 收稿日期:  2012-12-18
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课题(2011KTDZ01-05-05)

摘要: 以甲醛、苯甲醛为交联剂,制备交联壳聚糖树脂,再与锆(Ⅳ)离子反应制备锆负载交联壳聚糖吸附剂。采用静态吸附法考察了该吸附剂对水中硫酸根离子(SO42-)的吸附性能。实验发现,吸附时间2 h,SO42-溶液初始浓度500 mg/L,pH值3.0,溶液温度35℃为较优的吸附条件;吸附过程符合Langmuir等温吸附模型,属于优惠吸附型,吸附容量可达78.65 mg/g;吸附过程较好地符合拟二级动力学模型;锆负载前后交联壳聚糖对硫酸根的吸附量提高了约4.5倍;该吸附剂具有良好的耐酸性和再生性能。

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