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研究了含偕胺肟基螫合纤维对Au~(3+)的吸附特征及影响吸附量的因素。结果表明,含偕胺肟基螫合纤维对Au~(3+)的吸附量极高,而且将所吸附的Au~(3+)还原成单质金;在含Au~(3+)、Cu~(2+)+、Zn~(2+)和Cr~(3+)的溶液中,对Au~(3+)具有相当高的吸附选择性。提高偕胺肟基在螯合纤维中的含量及吸附温度和Au~(3+)的初始浓度等均有利于提高吸附量。
The adsorption characteristics of Au ~ (3 +) containing amidoxime fiber and the factors affecting the adsorption capacity were studied. The results show that the adsorption capacity of Au ~ (3 +) containing amidoxime fiber is extremely high, and the adsorbed Au ~ (3 +) is reduced to the elemental gold. In the presence of Au ~ (3 +), Cu ~ (2 +) +, Zn ~ (2+) and Cr ~ (3+) solution, which has a high adsorption selectivity to Au ~ (3+). Increasing the content of amidoxime in chelating fiber and the adsorption temperature and the initial concentration of Au ~ (3 +) are conducive to increase the adsorption capacity.