Surface modification of acid-functionalized mesoporous gamma-alumina for non-fission 99Mo/99mTc generator. (September 2022)

• Record Type: Journal Article
• Authors: Marlina, ; Sarmini, E.; Lestari, E.; Pratama, C.; Nurmanjaya, A.; Sriyono, ; Abidin, ; Triyatna, F.; Kadarisman, ; Aries, A.; Febriana, S.; Setiawan, H.; Saptiama, I.; Mujamilah, ; Patriati, A.; Awaludin, R.; Yulizar, Y.
• Is Part Of: Applied radiation and isotopes. Volume 187(2022)
• Publication Date: 2022-09
• Subjects: Acid-functionalized mesoporous alumina -- High-capacity adsorbent -- 99Mo breakthrough -- 99Mo/99mTc generator; Radiology -- Periodicals; Radiation -- Industrial applications -- Periodicals; Nuclear chemistry -- Periodicals; Internet resource; Periodical; 660.298
• DOI: 10.1016/j.apradiso.2022.110342
• Languages: English
• ISSNs: 0969-8043

Abstract

Abstract: Mesoporous gamma-alumina (MGA) was synthesized for neutron-activated 99 Mo adsorbent. Acid functionalization of the MGA was carried out to enhance the Mo adsorption capacity and the 99 Mo breakthrough profile. The acid-treated MGA has a more positive particle charge, rougher surface, smaller particle and pore size, larger surface area, and wider pore distance. The acid-treated MGA has a Mo adsorption capacity of 82.8 ± 6.3 mg Mo/g and resulted in 99m Tc eluate with the 99 Mo breakthrough at the acceptable level. Highlights: Surface modification of acid functionalization mesoporous gamma-alumina as a high-capacity adsorbent have been prepared Acid functionalization was carried out by soaking the mesoporous gamma-alumina with 0.5M nitric acid solution. Surface modification acid-functionalized mesoporous gamma-alumina enhanced the Mo adsorption capacity. The 99 Mo/ 99m Tc generator developed using the acid-functionalized gamma-alumina resulted in the qualified 99m Tc solution.