Lan Tian, Liu Xiechun, Cong Haifeng, Ding Xiaofan, Zhao Jing, Xiao Songtao
Department of Radiochemistry, China Institute of Atomic Energy, Beijing 102413, China.
Molecules. 2025 Jul 15;30(14):2966. doi: 10.3390/molecules30142966.
In this study, a novel adsorbent, UiO-66-HIMDC, was successfully prepared by functionalizing UiO-66 with imidazole-4,5-dicarboxylic acid (H3IMDC). The effective functionalization of HIMDC on UiO-66 was confirmed by powder X-ray diffraction (PXRD) and Fourier transform infrared spectroscopy (FT-IR). The relationships between the adsorption of U(VI) on UiO-66-HIMDC and the contact time, the pH of the solution, as well as the initial concentration of U(VI) were investigated. Additionally, the selective adsorption of U(VI) by UiO-66-HIMDC and its cyclic regeneration performance were also studied. The results demonstrate that the UiO-66-HIMDC adsorbent exhibits excellent adsorption performance for uranium in aqueous solutions.
在本研究中，通过用咪唑-4,5-二羧酸（H3IMDC）对UiO-66进行功能化，成功制备了一种新型吸附剂UiO-66-HIMDC。通过粉末X射线衍射（PXRD）和傅里叶变换红外光谱（FT-IR）证实了HIMDC在UiO-66上的有效功能化。研究了UiO-66-HIMDC对U(VI)的吸附与接触时间、溶液pH值以及U(VI)初始浓度之间的关系。此外，还研究了UiO-66-HIMDC对U(VI)的选择性吸附及其循环再生性能。结果表明，UiO-66-HIMDC吸附剂在水溶液中对铀表现出优异的吸附性能。
