SYNTHESIS AND PROPERTIES OF SULFHYDRYL
CHITOSAN
杨宇民; 邵健; 姚成
【期刊名称】《《中国海洋湖沼学报（英文版）》》 【年(卷),期】2001(019)004
【摘要】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. 【总页数】7页(375-381) 【关键词】
【作者】杨宇民; 邵健; 姚成
【作者单位】Nantong Medical College Nantong; Nanjing University of
SYNTHESIS AND PROPERTIES OF SULFHYDRYL CHITOSAN
