1258859-29-8Relevant articles and documents
Synthesis of two coordination polymer photocatalysts and significant enhancement of their catalytic photodegradation activity by doping with Co2+ Ions
Li, Duan-Xiu,Ren, Zhi-Gang,Young, David J.,Lang, Jian-Ping
, p. 1981 - 1988 (2015)
The coordination polymers (CPs) [Zn2(tipm)(1,3-BDC)2] (1) and [Co2(tipm)(1,3-BDC)2]·0.5CH3CN (2·0.5CH3CN) were synthesized by the reactions of Zn(NO3)2 or Co(NO3
Identifying the Recognition Site for Selective Trapping of 99TcO4- in a Hydrolytically Stable and Radiation Resistant Cationic Metal-Organic Framework
Zhu, Lin,Sheng, Daopeng,Xu, Chao,Dai, Xing,Silver, Mark A.,Li, Jie,Li, Peng,Wang, Yaxing,Wang, Yanlong,Chen, Lanhua,Xiao, Chengliang,Chen, Jing,Zhou, Ruhong,Zhang, Chao,Farha, Omar K.,Chai, Zhifang,Albrecht-Schmitt, Thomas E.,Wang, Shuao
, p. 14873 - 14876 (2017/10/31)
Effective and selective removal of 99TcO4- from aqueous solution is highly desirable for both waste partitioning and contamination remediation purposes in the modern nuclear fuel cycle, but is of significant challenge. We report here a hydrolytically stable and radiation-resistant cationic metal-organic framework (MOF), SCU-101, exhibiting extremely fast removal kinetics, exceptional distribution coefficient, and high sorption capacity toward TcO4-. More importantly, this material can selectively remove TcO4- in the presence of large excesses of NO3- and SO42-, as even 6000 times of SO42- in excess does not significantly affect the sorption of TcO4-. These superior features endow that SCU-101 is capable of effectively separating TcO4- from Hanford low-level waste melter off-gas scrubber simulant stream. The sorption mechanism is directly unraveled by the single crystal structure of TcO4--incorporated SCU-101, as the first reported crystal structure to display TcO4- trapped in a sorbent material. A recognition site for the accommodation of TcO4- is visualized and is consistent with the DFT analysis results, while no such site can be resolved for other anions.