亚胺基二乙酸树脂对Ag(Ⅰ)的吸附性能及其原理

研究了亚胺基二乙酸树脂（D401）对银(Ⅰ)的吸附行为，考察了介质pH、温度和吸附时间等因素对吸附过程的影响。测得在HAc—NaAc 体系中pH为5.6是最佳的吸附条件之一；在温度为298K时，静态饱和吸附容量为296 mg/g树脂，表观吸附速率常数（k₂₉₈ ）为1.046×10^-5 S^-1 ；表观吸附活化能（E）为27.87 kJ·mol^-1。等温吸附服从Freundlich经验式，树脂功能基与银(Ⅰ)的配位摩尔比约为1：1。用红外光谱等表征方法探讨了吸附的作用原理并，对负载树脂解吸进行了研究。     

Adsorption and Desorption of Phenol on XDA-1 Macroreticular Resin

The adsorption properties of phenol on XDA-1 resin were studied by chemical analysis and IR spectrometry.The statically saturated adsorption capacity,dynamic saturated adsorption capacity,apparent activation energy,thermodynamic parameters,and adsorption rate constants were measured at different temperatures.As a result,adsorption of phenol on the resin obeys the Freundlich formula.And phenol was recovered quantitatively when ethanol,acetone or 1.0 mol/L sodium hydroxide were used to desorb it from the colu...     

4-氨基吡啶树脂对锌的吸附及解吸性能的研究

研究了4-氨基吡啶树脂吸附锌的行为,结果表明在pH=2.63的HAc-NaAc体系中,树脂对锌(Ⅱ)有较好的吸附,其静态饱和吸附容量为58.4mg/g树脂,表观速率常数k298=3.42×10-5s-1,用pH=1-4的不同浓度盐酸洗脱,洗脱率均达100%。