First Cationic Uranyl-Organic Framework with Anion-Exchange Capabilities.
By controlling the extent of hydrolysis during the self-assembly process of a zwitterionic-based ligand with uranyl cations, we observed a structural evolution from the neutral uranyl-organic framework [(UO2)2(TTTPC)(OH)O(COOH)]·1.5DMF·7H2O (SCU-6) to the first cationic uranyl-organic framework with the formula of [(UO2)(HTTTPC)(OH)]Br·1.5DMF·4H2O (SCU-7). The crystal structures of SCU-6 and SCU-7 are layers built with tetranuclear and dinuclear uranyl clusters, respectively. Exchangeable halide anions are present in the interlaminar spaces balancing the positive charge of layers in SCU-7. Therefore, SCU-7 is able to effectively remove perrhenate anions from aqueous solution. Meanwhile, the H2PO4(-)-exchanged SCU-7 material exhibits a moderate proton conductivity of 8.70 × 10(-5) S cm(-1) at 50 °C and 90% relative humidity, representing nearly 80 times enhancement compared to the original material.
School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University , Jiangsu 215123, China.|Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Jiangsu 215123, China.
Zhuanling
Z
Bai
School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University , Jiangsu 215123, China.|Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Jiangsu 215123, China.
Yanlong
Y
Wang
School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University , Jiangsu 215123, China.|Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Jiangsu 215123, China.
Yuxiang
Y
Li
School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University , Jiangsu 215123, China.|Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Jiangsu 215123, China.
Wei
W
Liu
School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University , Jiangsu 215123, China.|Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Jiangsu 215123, China.
Lanhua
L
Chen
School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University , Jiangsu 215123, China.|Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Jiangsu 215123, China.
Daopeng
D
Sheng
School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University , Jiangsu 215123, China.|Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Jiangsu 215123, China.
Juan
J
Diwu
School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University , Jiangsu 215123, China.|Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Jiangsu 215123, China.
Zhifang
Z
Chai
Department of Chemistry and Biochemistry, Florida State University , 95 Chieftain Way, Tallahassee, Florida 32306, United States.
Thomas E
TE
Albrecht-Schmitt
School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University , Jiangsu 215123, China.|Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Jiangsu 215123, China.
Shuao
S
Wang