含偕胺肟基螯合纤维吸附、还原Au^(3+)的研究(Ⅰ)——含偕胺肟基螯合纤维对Au^(3+)的吸附行为  

Studies on the Adsorption and Reduction of Au^(3+) Ion with Chelating Fiber Containing Amidoxirne Group (Ⅰ)——Adsorption Behavior of Au(Ⅱ) Ion onto Chelating Fiber Containing Amidoxime Group

作　　者：林伟平[1] 符若文[1] 汤丽鸳[1] 陆耘[1] 曾汉民[1] 

机构地区：[1]中山大学材料科学研究所,广州510275

出　　处：《高等学校化学学报》1993年第2期283-286,共4页Chemical Journal of Chinese Universities

基　　金：国家教育委员会博士点基金;中山大学科研基金

摘　　要：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 behavior of Au(Ⅲ) ion onto the chelating fiber containing amidoxime group was investigated, and the factors to influence the adsorption capacity were discussed. The chelating fiber presents a high adsorption capacity to Au(Ⅲ) ion, and is able to reduce the adsorbed Au(Ⅲ ) ion into metallic gold. In the solution containing Au(Ⅲ),Cu(Ⅱ),Zn(Ⅱ) and Cr( Ⅲ ), the fiber presents a high selectivity to Au(Ⅲ). With increasing amidoxime group content in the fiber, temperature and initial concentration of Au(Ⅲ) ion, the adsorption rate and capacity increase.

关 键 词：螯合纤维 偕胺肟基 吸附选择性 金 吸附 废水处理 还原 

分 类 号：O647.3[理学—物理化学] X703.1[理学—化学]