PREPARTION OF CROSSLINKED CHITOSAN TDI AND ITS ADSORPTION PROPERTIES
An Shengji;Zhang Lanying;Zheng Songzhi; Xu Jingmei(Changchun Univ. of Sci. and Technology , Changchun 130026) (Changchun Environmental Monitoring Center , Changchun 130022)
The preparation and adsorption to Hg~2+, Cd~2+,Cu~2+, Cr~6+, Pb~2+, Zn~2+, Ni~2+ of chitosanmodified by TDI are studied, The effects of pH, time and temperature on the adsorption are investigated. The results show that the modified chitosan is easy to be regenerated and less soluble in asidic solution and it has higher adsorption selectivity for Hg~2+, Cd~2+, Cu~2+ when Hg~2+, Cd~2+, Cu~2+, Cr~6+, Ph~2+,Zn~2+,Ni~2+ are present simultaneously in solution.
【CateGory Index】： O647.3