1-(2-氨乙基)吡咯烷树脂的合成及其对贵金属的吸附  

SYNTHESIS OF 1-(2-AMINOETHYL) PYRROLIDINE RESIN AND ITS SORPTION FOR NOBLE METAL IONS

作　　者：陈义镛[1] 袁兴中[1] 季明荣[2] 徐文英[2] 

机构地区：[1]杭州大学化学系,杭州邮政编码310028 [2]中国科学技术大学,合肥邮政编码230026

出　　处：《高分子学报》1993年第2期225-232,共8页Acta Polymerica Sinica

基　　金：国家自然科学基金

摘　　要：研究了试剂摩尔比、反应温度、反应时间对1-(2-氨乙基)吡咯烷树脂合成的影响规律.此树脂的功能基含量2.74 mmol/g树脂,对Au(Ⅲ)、Os(Ⅳ)、Pt(Ⅳ)、Ir(Ⅳ)、Ru(Ⅲ)、Pd(Ⅱ)的吸附容量分别高达950、520、436、418、314、302 mg/g树脂.FT-IR、元素分析表征了树脂结构.测定了吸附速率曲线,配位比,表观吸附活化能△E_(Au)=6.4、△E_(Pt)=33.7kJ/mol.XPS研究了吸附机理.The influences of molar ratio of reagent, reaction temperature, and reaction time on the synthesis of 1-(2-aminoethyl) pyrrolidine resin (AEPDR) have been studied. The functional group capacity of AEPDR is 2.74 mmol/g resin. The sorption capacities of AEPDR for Au (III), Os(IV), Pt(IV), Ir(IV), Ru(III), and Pd(II) are as high as 950, 520, 436, 418, 314, and 302 mg ion/g resin, respectively. The structure of AEPDR was confirmed by FT-IR and elementary analysis. The sorption rate curves and complex ratio were determined. The apparent sorption activation energies for Au(III) and Pt(IV) are △EAu = 6.3 and △EPt = 33.7 kJ/mol, respectively. The sorption mechanism has been nvestigated by XPS.

关 键 词：AEPDR 树脂 贵金属 吸附 

分 类 号：TQ322.4[化学工程—合成树脂塑料工业]