| The element Zinc, Cadmium, Lead are paid more and more attention because of their heavy metal ions which come from some associated fields such as the electronics and electroplate fields, have become an important source of pollution in waste water. In order to get rid of these toxic metal ions effectually, some chemical techniques are used widely in the world by people nowadays. For instance, Chemistry Subsidence, Ionic Exchange and Adsorption etc. In recent years, the researches of some specific ion polymer compounds, which have the special selectivity, the strong chelating ability, are getting hotter and hotter. Because of its molecular structure include the amino, hydroxyl which can be linked with transition metal ions then have the greatly strengthened chelating ability, chitosan (CTS) is extensively used for recovering the precious metal, processing industrial wastewater.In this article, the Chitosan (CTS), the Thiosemicarbaxide and Chloroacetic Acid were used as the main raw materials to synthesize a new kind of heavy metal adsorbent LNCTS. By using the FT-IR to confirm the main intermediary product, it was proved that the result tally to the expectation. To the intermediary product (Ⅲ), we take the production rate and the adsorb function for Zn2+ as the inspection target, take the orthogonal experiments to optimization synthesis condition, then conclude the best synthesizing condition as follow. LNCTS:Thiosemicarbaxide : Chloroacetic Acid = 1.0 : 2.0 : 2.0, Reaction Temperature is 60℃, Reaction Time is 3h.After studying on the absorption properties of modification LNCTS to three kinds of heavy metal ions (Zn2+) , Cd2+, Pb2+), and go further in its function in...
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