【摘要】 本文研究了由聚(N-乙烯基甲酰胺/丙烯腈)水解得到的一种新型螫合纤维的合成、结构特征和螯合性能。这种纤维包含了高密度的螯合基像脒基、氰基和酰胺基等。研究结果显示了该纤维对金属离子有很高的束缚能力,对Cu2+,Cr3+,CO2+和Ni2+的最大吸附量分别为108.46,87.03,137.68和105.06mg/g。吸附在螫合纤维上的金属离子经洗脱后可回收,螯合纤维可以反复使用。更多还原

【Abstract】 In this article we study the synthesis,structural character and chelating properties of a new chelating fiber that was prepared from a hydrolyzate of polo(N-vinylformamide/acrylonitrile).This fiber contains chelating groups,such as amidine groups,amino groups,cyano groups,andamide groups,with high densities.Based on the research results,it was showed that the fiber has high binding capacities for heavy metal ions.The maximum adsorption capacities of the fiber for Cu2+,Cr3+,Co2+ and Ni2+ are 108.46,87.03,137.68 and 105.06mg/g,respectively.After elution,The adsorption metal ions can be recovered while chelating fiber can be used repeatedly.更多还原