Chin. J. Org. Chem. ›› 2019, Vol. 39 ›› Issue (1): 151-156.DOI: 10.6023/cjoc201807054 Previous Articles     Next Articles

Special Issue: 庆祝陈庆云院士九十华诞 有机超分子化学合辑

Articles

环糊精/氨基粘土超分子水凝胶的构筑及其I3-/I2吸附性能

牛杰a, 陈湧a, 刘育a,b   

  1. a 南开大学化学学院 元素有机化学国家重点实验室 天津 300071;
    b 天津市化学化工协同创新中心 天津 300072
  • 收稿日期:2018-07-29 修回日期:2018-09-17 出版日期:2019-01-25 发布日期:2018-09-26
  • 通讯作者: 刘育 E-mail:yuliu@nankai.edu.cn
  • 基金资助:

    国家自然科学基金(Nos.21432004,21672113,21772099,21861132001,91527301)资助项目.

Construction of Cyclodextrin/Aminoclay-Based Supramolecular Hydrogel and Its I3-/I2 Adsorption Property

Niu Jiea, Chen Yonga, Liu Yua,b   

  1. a State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071;
    b Collaborative Innovation Center of Chemical Science and Engineering(Tianjin), Tianjin 300072
  • Received:2018-07-29 Revised:2018-09-17 Online:2019-01-25 Published:2018-09-26
  • Contact: 10.6023/cjoc201807054 E-mail:yuliu@nankai.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 21432004, 21672113, 21772099, 21861132001, 91527301).

Aminoclay (AC), as a kind of layered silicates with positive charges, shows high dispersity in water and has been widely applied in the fabrication of intelligent hybrid hydrogel. Herein, heptakis-[6-deoxy-6-(2-sulfanylethanesulfonic acid)]-β-cyclodextrin (SCD), a kind of negatively charged cyclodextrin, was employed to construct the supramolecular hydrogel with aminoclay through the static electronic interactions, and the resultant SCD-AC hydrogel was fully characterized by means of X-ray powder diffraction (XRD), scanning electronic microscopy (SEM), fourier transform infrared spectroscopy (FT-IR), zeta potential, rheological test, etc. Significantly, the SCD-AC hydrogel can efficiently absorb not only I3- ion in aqueous solution but also I2 molecule in organic solvent, giving a high adsorption capacity up to 90% with 10 min.

Key words: supramolecular hydrogel, cyclodextrin, aminoclay, iodine, adsorption