Adsorption of gaseous radioactive iodine by Ag/13X zeolite at high temperatures

作者：Cheng Qinghui; Yang Weiwei; Li Zejun; Zhu Qiufeng; Chu Taiwei^*; He Dehua; Fang Chao

来源：Journal of Radioanalytical and Nuclear Chemistry, 2015, 303(3): 1883-1889.

DOI：10.1007/s10967-014-3736-3

• Nuclear reactor
• Radioactive iodine
• Decontamination factor (DF)
• Stability
• Adsorption

Ag/13X adsorbents were synthesized, characterized and tested for decontamination of gaseous effluents from I-131(2) at high temperatures. X-ray diffraction patterns showed that the Ag/13X samples maintained a stable structure after calcined at 650 A degrees C for 2 h. The decontamination factors achieved with 15 % Ag/13X and 20 % Ag/13X adsorbents for I-131(2) were nearly close to 10(3) at 650 A degrees C. In addition, 15 % Ag/13X had a stable performance for removal of I-131(2) at 550 and 650 A degrees C, even after calcined at 550 and 650 A degrees C for over 10 h, which might be suitable for future potential use during nuclear reactor operation or in the case of nuclear accidents.

• 出版日期2015-3
• 单位清华大学; 北京大学