文献类型：期刊文章

作　　者：熊春华[1] 吴香梅[2]

机构地区：[1]杭州商学院食品,生物技术和环境工程学院,杭州310035 [2]丽水师范专科学校化学系,丽水323000

出　　处：《无机化学学报》

基　　金：浙江省高校中青年学科带头人基金资助项目;浙江省自然科学基金资助项目(No.200072)。

年　　份：2003

卷　　号：19

期　　号：12

起止页码：1356-1360

语　　种：中文

收录情况：BDHX、BDHX2000、CAS、CSCD、CSCD2011_2012、IC、JST、RCCSE、RSC、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：The adsorption behavior and mechanism of a novel chelate resin, iminodiacetic acid resin (IDAAR) for Y? were investigated. The statically saturated adsorption capacity is 102mg· g- 1 resin at 298K in HAc NaAc medium at pH 5.7. Y? adsorbed on IDAAR can be reductively eluted by 1.0～ 4.0mol· L- 1 HCl used as eluant and the elution percentages are almost as high as 100% . The resin can be regenerated and reused without apparent decrease in adsorption capacity. The apparent adsorption rate constant is k298=3.36× 10- 5s- 1. The adsorption behavior of IDAAR for Y? conforms to Freundlich′ s model reasonably. The thermodynamic adsorption parameter, enthalpy change Δ H of IDAAR for Y? is 18.6kJ· mol- 1. The complex molar ratio of the functional group of IDAAR to Y? is about 3∶ 1. The adsorption mechanism of IDAAR for Y? was examined by using chemical method and IR spectrometry.

关 键 词：亚氨基二乙酸树脂  吸附机理  钇 Y(Ⅲ)  热动力学

分 类 号：O614.322] O647.3[化学类]