高性能钼-99吸附剂有序和无序介孔氧化铝的合成与表征

IF 0.6 Q4 NUCLEAR SCIENCE & TECHNOLOGY
I. Saptiama, F. Rindiyantono, A. Aries, Y. V. Kaneti, M. Iqbal
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引用次数: 0

摘要

钼-99(99Mo)是锝-99m(99mTc)的母体放射性同位素,锝是核医学诊断试剂的重要医用放射性同位素。在99Mo/999mTc发生器中,医院通常使用以99Mo吸附剂为填料的色谱柱系统来生产99mTc。然而,寻找高性能的Mo吸附剂仍然具有挑战性。我们合成了有序和无序的介孔氧化铝,并比较了它们作为99Mo吸附剂的性能。这些材料是通过软模板法制备的,使用三嵌段共聚物作为模板,然后在400°C下进行空气煅烧。系统地调节硝酸(HNO3)的用量和干燥时间以合成有序的介孔氧化铝。通过低广角X射线衍射(XRD)、氮吸附-脱附、热重分析(TGA)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)对所获得的有序和无序介孔氧化铝进行了表征。采用分批法对这些材料的99Mo吸附性能进行了评价。实验结果表明,有序介孔氧化铝对99Mo的吸附量为72.06mg(Mo)g-1,高于无序介孔氧化铝(50.12mg(Mo)g-1)。结果表明,有序介孔氧化铝作为99Mo/999mTc发生器柱的吸附剂具有良好的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Synthesis and Characterization of Ordered and Disordered Mesoporous Alumina as High-Performance Molybdenum-99 Adsorbents
Molybdenum-99 (99Mo) is the parent radioisotope of technetium-99m (99mTc),an essential medical radioisotope for diagnostic agents in nuclear medicine.In 99Mo/99mTc generator, a chromatography column system with 99Mo adsorbent as afiller is usually used to produce 99mTc in hospitals. However, it is still challenging to find high-performance adsorbentsfor Mo adsorption.We have synthesized both ordered and disordered mesoporous alumina and compared their performance as 99Mo adsorbents. These materials were prepared via a soft-templated method using a triblock copolymer as the template, followed by air calcination at 400°C.The amount of nitric acid (HNO3) and the drying time were adjusted systematically to synthesize the ordered mesoporous alumina. The obtained ordered and disordered mesoporous alumina were characterized by low-and wide-angle X-ray diffractions (XRD), nitrogen adsorption-desorption, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The 99Mo adsorption capacities of these materials were evaluated by using the batch method. The experimental results show that the ordered mesoporous alumina hasa higher 99Mo adsorption capacity of 72.06 mg(Mo)g-1 than the disordered mesoporous alumina (50.12 mg(Mo)g-1). The results indicate the excellent potential of ordered mesoporous alumina as an adsorbent for the 99Mo/99mTc generator column.
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来源期刊
Atom Indonesia
Atom Indonesia NUCLEAR SCIENCE & TECHNOLOGY-
CiteScore
1.00
自引率
0.00%
发文量
20
审稿时长
16 weeks
期刊介绍: The focus of Atom Indonesia is research and development in nuclear science and technology. The scope of this journal covers experimental and analytical research in nuclear science and technology. The topics include nuclear physics, reactor physics, radioactive waste, fuel element, radioisotopes, radiopharmacy, radiation, and neutron scattering, as well as their utilization in agriculture, industry, health, environment, energy, material science and technology, and related fields.
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