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

页码：1883 / 1889

页数：7

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