期刊论文

Liu, Y.-C.

中文

高校化学工程学报

1003-9015

2006

20

4

510-514

10.3321/j.issn:1003-9015.2006.04.003

10475038:国家自然科学基金 2000K52141:教育部高校骨干教师资助计划

本校为第一且通讯机构

为进行稀溶液中铀的浓缩，以硫酸铀酰为模板、二乙基烯丙基胺为功能单体，在水中采用自组装分子印迹技术制备了硫酸铀酰印迹离子交换树脂。对树脂合成条件进行了优化，研究了pH值对吸附量的影响、分子印迹聚合物MIPs-4的等温吸附与吸附动力学、柱内吸附与淋洗曲线等树脂识别性能。结果表明：印迹树脂对硫酸铀酰的吸附性能比非印迹树脂好，可以在pH=1-6范围内应用，并在pH为2左右时吸附能力最强。MIPs-4树脂的吸附等温线为“优吸”型，吸附在约3h达到平衡。当Co=0、125mg·mL^-1时，Kd=0、249L·g^-1。吸附液p（U）=1．0mg·mL^-1、接触时间4min进行的柱内试验得出MIPs-4的穿透体积、穿透容量和饱...

In order to concentrate uranium from its dilute solution, the uranyl sulphate imprinted ion exchange resins were synthesized in water by using self-assembling imprinting technology, during which, the uranyl sulphate was used as template and the diethyl allylamine as functional monomer. The performances of prepared imprinted resins, such as the pH influence on adsorption capacity, the isothermal adsorption and adsorption dynamics, the adsorption and elution curves of the molecular imprinting polymer MIPs-4 in the ion exchange resin column, were studied and the synthetic conditions of imprinted ...