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General Chemistry ›› 2019, Vol. 5 ›› Issue (4): 190004-190004.DOI: 10.21127/yaoyigc20190004

Special Issue: Nanomaterials

• Reports •     Next Articles

Preparation of Dipalmitoyl Phosphatidycholine-Modified Chitosan Nanostructures and Its Application for Enhancing Chromium Adsorption

Ruochen Wang†,a, b, Fan Yi†,a, b, Yu Qiaoa, b, Gang Huangc, *, Jun Zhub, *, Dannong Hea, b, *   

  1. a School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China;
    b National Engineering Research Center for Nanotechnology, 28 East Jiangchuan Road, Shanghai 200241, China;
    c Shanghai University of Medicine & Health Sciences, 279 Zhouzhu Road, Shanghai 201318, China;
  • Received:2019-01-13 Revised:2019-02-22 Online:2019-12-29 Published:2019-12-12
  • Contact: Dannong He, Email: hdn_nercn@163.com (D. H.); Dannong He, Email: yzjzhu@163.com (J. Z.); Gang Huang, Email: huang2802@163.com (G. H.)
  • About author:† These authors contributed equally to this work.

Abstract: Chitosan (CTS) nanospheres are successfully modified dipalmitoyl phosphatidycholine (DPPC) through by solvent removal. The physicochemical properties are characterized by dynamic light scattering (DLS), transmission electron microscope (TEM) and fourier transform infrared spectroscopy (FT-IR). Furthermore, the CTS-DPPC nanospheres are used as a novel biosorbent for the application in Cr(VI) absorption, and the effect of pH and additional anions on the Cr(VI) adsorption performance is evaluated. Additionally, CTS-DPPC nanofibers are produced by electrospinning to improve adsorption capacity. The results show that the order of Cr(VI) adsorption performance is CTS-DPPC nanofibers, CTS-DPPC nanospheres and CTS nanospheres, which suggests DPPC is helpful for CTS to remove metal ion. Moreover, X-ray photoelectron spectrophotometer (XPS) analyses indicate that both amino and hydroxyl groups of CTS-DPPC nanospheres are engaged in the adsorption.


Key words: chitosan, dipalmitoyl phosphatidycholine, nanosphere, nanofiber, Cr(VI) adsorption

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