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Synthesis and properties of sulfhydryl chitosan

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Chinese Journal of Oceanology and Limnology Aims and scope Submit manuscript

Abstract

A new adsorbent for heavy metal ions, sulfhydryl chitosan (S-chitosan), was produced by treatment of chitosan with sulhydryl acetic acid in the presence of sulfuric acid as a catalyst. Its structure was confirmed by elemental analysis and FT-IR spectra analysis. The adsorption properties of sulfhydryl chitosan for Cu(II), Cd(II), Pb(II), Cr(III) and Ni(II) were investigated, and the effect of pH value on adsorption, adsorption kinetics, and selective adsorption was examined. It was shown that S-chitosan has good adsorption for Pb(II), Cu(II) and Cd(II) like chitosan, is also insoluble in acid solution; has good adsorption kinetic properties for heavy metal ions; and can be used in acid solution. The adsorption capacities of S-chitosan can be affected by media acidity. The adsorbed Cu(II) Cd(II) and Pb(II) could be eluted by diluted chlorhydric acid.

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Yu-min, Y., Jian, S. & Cheng, Y. Synthesis and properties of sulfhydryl chitosan. Chin. J. Ocean. Limnol. 19, 375–381 (2001). https://doi.org/10.1007/BF02850743

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  • DOI: https://doi.org/10.1007/BF02850743

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