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

被引：52
|
作者：
Cheng, Qinghui [1 ]
Yang, Weiwei [2 ]
Li, Zejun [1 ]
Zhu, Qiufeng [2 ]
Chu, Taiwei [1 ]
He, Dehua [2 ]
Fang, Chao [3 ]
机构：
[1] Peking Univ, Beijing Natl Lab Mol Sci, Radiochem & Radiat Chem Key Lab Fundamental Sci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
[2] Tsinghua Univ, Dept Chem, Minist Educ, Key Lab Organoelect & Mol Engn, Beijing 100084, Peoples R China
[3] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2015年 / 303卷 / 03期
基金：
美国国家科学基金会;
关键词：
Nuclear reactor; Radioactive iodine; Decontamination factor (DF); Stability; Adsorption; ION-EXCHANGED ZEOLITE; METHYL-IODIDE; PERFORMANCE; REMOVAL; FUEL; AG/AL2O3; CAPTURE; MIXTURE; WASTE; POWER;
D O I：
10.1007/s10967-014-3736-3
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
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.
引用
收藏
页码：1883 / 1889
页数：7
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