摘要
通过化学反应过程将丙烯腈接枝到高交联淀粉上,接枝产物再经皂化水解制得不溶性羧基淀粉接枝聚合物(简称羧基淀粉).研究了羧基淀粉吸附重金属离子的容量,结果表明,吸附量随吸附平衡浓度的变化规律,遵从Q/Qmax=ac/(1+ac)方程.
Water-insoluble carboxyl-containing starch graft polymer (carboxyl-containing starch) was prepared by grafting acrylonitrile onto highly cross-linked starch, followed by base saponification to convert nitrile group into a mixture of carboxamide and carboxylate groups. The sorption amount properties of carboxyl-containing starch for several heavy metal ions have also been studied systematically. It is shown that the relationship between the sorption amount and equilibrium concentration complies completely with the following sorption isothermal equation Q/Qmax = ac/(1 + ac) .
出处
《甘肃科学学报》
2009年第2期51-53,共3页
Journal of Gansu Sciences
基金
甘肃省教育厅科研项目(0511B-02)
关键词
羧基淀粉
重金属离子
吸附等温方程
carboxyl-containing starch
heavy metal ions
sorption isothermal equation