LIANG Panyi ^1,2 , CHEN Quanshui ^1,2 , MA Hui ¹ , YU Xingguo ¹ , LIU Xiaodong ¹

(1.Department of Material Science and Engineering, East China Institute of Technology, Fuzhou Jiangxi 344000, China;

2.Key Laboratory of Nuclear Resources and Environment of Ministry of Education, East China Institute of Technology,

Nanchang Jiangxi 330013, China)

Abstract: Perovskite synroc was synthesized by the sol-gel method, using Fe₂O₃, Ti, CaO and TiO₂ as main raw materials, and simulated radioactive element Sr was immobilized in pervoskite synroc matrix through solid-state reaction. The as-formed sample was then analyzed by X-ray diffraction and scanning electron microscopy. The results indicate that the best result can be obtained when the mol ratio of Fe₂O₃∶Ti∶CaO∶TiO₂=2∶3:4:1 and the doping amount of SrO is 10%.

Key words: sol-gel; perovskite synroc; simulated immobilization; performance analysis