Stability of metal-organic frameworks towards 8-ray irradiation: Role of organic groups

被引:7
作者
Ding, Xiaofan [1 ]
Xiao, Songtao [2 ]
Wang, Ting [1 ]
Zeng, Zucao [1 ]
Zhao, Xudong [3 ]
Yang, Qingyuan [1 ]
机构
[1] Beijing Univ Chem Technol, Coll Chem Engn, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
[2] China Inst Atom Energy, Dept Radiochem, Beijing 102413, Peoples R China
[3] Taiyuan Univ Sci & Technol, Coll Chem & Biol Engn, Taiyuan 030024, Peoples R China
基金
中国国家自然科学基金;
关键词
8-ray irradiation; Metal-organic framework; Stability; Organic group; Protection parclose; REMOVAL; SELECTIVITY; EXTRACTION; EFFICIENT; LIGANDS; URANIUM; CESIUM; MOFS; CO2;
D O I
10.1016/j.micromeso.2023.112533
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Available online Metal-organic frameworks (MOFs) have emerged high potentials in recovering nuclides, while their performances preferentially depend on the stability under ray irradiation including 8-ray. Herein, the contribution of organic groups on 8-ray resistance property was studied via using UiO-66 and MIL-101 as the platforms. All the group-absence and single-group MOFs exhibit poor stability under high dosage of 8-ray. The groups of -NH2 and -COOH have slightly negative effects while the -SO3H, -NO2 and -OH will largely weaken the stability. Interestingly, dual-group MOFs including UiO-66-(OH)2 and UiO-66-(COOH)2 show excellent 8-ray resistance up to the irradiation dosage of 2 MGy. Compared with single group, the high-density organic groups surrounding the clusters can act an effective protection parclose and the larger the nonpolar surface area of high -density organic groups, the greater the interactions with the clusters, which may prevent the attack from 8-ray electron stream. We anticipate that this work will provide a guideline for rationally designing materials with strong 8-ray resistance.
引用
收藏
页数:6
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