摘要
本文研究了含偕胺肟基聚丙烯腈系螯合纤维对于三价 Au 离子的吸附行为。结果表明,上述螯合纤维不仅对三价 Au 离子具有相当高的吸附容量,而且还能将所吸附到的 Au 离子还原成金属态的 Au;在氧化还原过程中,偕胺肟基被氧化成羧酸基。
The adsorption behavior of Au^(3+) onto the acrylic chelating fiber containingamidoxime group was studied.It is concluded that the fiber possesses not only highadsorption capacity to Au^(3+),but also the ability to reduce the Au^(3+) into metallic gold;inredox process,the amidoxime group is oxidized into carboxyl group.
关键词
螯合树脂
吸附
金
偕胺肟基
氧化
amidoxime group
chelating fiber
adsorption capacity
redox process
metallic gold
