用于防治核能放射性污染的金属有机框架化合物
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- 英文论文题名：Potential Applications of MOFs in Nuclear Industry
- 论文作者：王殳凹
- 英文论文作者：Shuao Wang ; School for Radiological and interdisciplinary Sciences(RAD-X) ; Soochow University
- 年：2016
- 作者机构：苏州大学放射医学及交叉学科研究院核能环境化学研究中心;
- 论文关键词：铀酰 ; 金属有机骨架 ; 有机膦酸盐多孔骨架
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十二分会： 多孔功能材料
- 语种：中文
- 分类号：X591;O627
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十二分会 ; 多孔功能材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：249k
- 原文格式：D
- 会议级别：全国
摘要
该报告介绍两个方面的工作:第一个是我们在基于锕系金属离子的金属有机框架材料用于固定核废料的基础,合成了一例由铀酰赤道面伞状扭曲所引发的罕见三重石墨烯层互锁的三维骨架结构,该结构具有良好的化学及水稳定性,同时在强β和γ辐照场下结构不会发生坍塌。该结构在能在多种竞争离子存在情况下选择性去除放射性铯离子并保持结构稳定(图一)。第二个工作我们基于软硬酸原理,在离子热条件下合成两例具有大孔道结构的有机膦酸锆化合物,并首次解析出了三维有机膦酸锆化合物的单晶结构。该化合物可以在王水、浓硫酸中保持稳定,是目前酸性条件下最稳定的MOF材料并可以有效去除pH值在1到7范围内溶液中的铀酰离子。这两个工作充分说明MOF化合物在乏燃料后处理,核废料处置及核能放射性污染治理方面都有很好的应用前景。
Here we present a rare case of 3D uranyl organic framework material built through polycatenating of three sets of graphene-like layers,which exhibits significant umbellate distortions in the uranyl equatorial planes studied thoroughly by linear transit calculations.This unique structural arrangement leads to ultra-high radiation-resistance and chemical stability in aquaues solutions within a wide pH range from 3 to 12.Being equipped with the highest surface area among all actinide compounds known to date and exchangeable[(CH_3)_2NH_2]~+ cations in the structure,this material is able to selectively capture cesium from aqueous solutions.
Here we present a rare case of 3D uranyl organic framework material built through polycatenating of three sets of graphene-like layers,which exhibits significant umbellate distortions in the uranyl equatorial planes studied thoroughly by linear transit calculations.This unique structural arrangement leads to ultra-high radiation-resistance and chemical stability in aquaues solutions within a wide pH range from 3 to 12.Being equipped with the highest surface area among all actinide compounds known to date and exchangeable[(CH_3)_2NH_2]~+ cations in the structure,this material is able to selectively capture cesium from aqueous solutions.
引文
[1]Yanlong Wang,Juan Diwu*,Jing Su*,Zhifang Chai,and Shuao Wang*et al.J.Am.Chem.Soc.,2015,137,6144-6147.