开链氮杂冠醚化稻草纤维素球的制备及其吸附性能  

Preparation and Adsorption Property of Aza-crown Ether Straw Cellulose Spheres

作　　者：曾艳[1] 董军[1] 白威[2] 

机构地区：[1]川北医学院法医系,四川南充637002 [2]中国科学院成都有机化学研究所,四川成都610041

出　　处：《合成化学》2009年第5期580-582,共3页Chinese Journal of Synthetic Chemistry

基　　金：四川省教育厅青年基金资助项目(072B028)

摘　　要：以开链氮杂冠醚改性环氧基稻草纤维素球,成功地制备了开链氮杂冠醚化稻草纤维素球(3)。测试结果表明,3对Cu2+,Pb2+和Ag+的静态饱和吸附量分别为5.48 mg.g-1,6.02 mg.g-1和4.44 mg.g-1。建立了富集-火焰原子吸收分光光度法:用3-分离柱富集水中的重金属离子(如Cu2+,Pb2+和Ag+),富集液经火焰原子吸收分光光度计检测,即可计算出水中痕量重金属离子的浓度。Aza-crown ether straw cellulose spheres（3） were prepared by modifying epoxy straw cellu- lose spheres with aza-crown ether. The results showed that the static adsorption capacity of 3 for Cu^＋2, Pb^2＋ and Ag ^＋ were 5.48 mg·g^-1, 6.02 mg· g^-1 and 4.44 mg· g-1 , respectively. The analysis method of enrichment - flames atomic absorbent spectrophotometry （FAAS） was established. The trace heavy metal ions （Cu262＋ , Pb^2＋ and Ag ^＋ ） in water were enriched by 3-column to obtain a ino-enriched solution, the solution was tested by FAAS and then the concentrations of heavy metal ions in water were calculated.

关 键 词：稻草纤维素球 氮杂冠醚 重金属离子 吸附性能 

分 类 号：O657.3[理学—分析化学]