Umbellate distortions of the uranyl coordination environment result in a stable and porous polycatenated framework that can effectively remove cesium from aqueous solutions.
Searching for new chemically durable and radiation-resistant absorbent materials for actinides and their fission products generated in the nuclear fuel cycle remain highly desirable, for both waste management and contamination remediation. 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 high β and γ radiation-resistance and chemical stability in aqueous 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 completely exchangeable [(CH3)2NH2](+) cations in the structure, this material is able to selectively remove cesium from aqueous solutions while retaining the polycatenated framework structure.
†School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, 199 Ren'ai Road, Suzhou 215123, China.|‡Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Ren'ai Road, Suzhou 215123, China.
Yanlong
Y
Wang
†School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, 199 Ren'ai Road, Suzhou 215123, China.|‡Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Ren'ai Road, Suzhou 215123, China.
Zhiyong
Z
Liu
†School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, 199 Ren'ai Road, Suzhou 215123, China.|‡Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Ren'ai Road, Suzhou 215123, China.
Yuxiang
Y
Li
†School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, 199 Ren'ai Road, Suzhou 215123, China.|‡Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Ren'ai Road, Suzhou 215123, China.
Zhuanling
Z
Bai
†School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, 199 Ren'ai Road, Suzhou 215123, China.|‡Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Ren'ai Road, Suzhou 215123, China.
Wei
W
Liu
†School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, 199 Ren'ai Road, Suzhou 215123, China.|‡Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Ren'ai Road, Suzhou 215123, China.
Yaxing
Y
Wang
†School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, 199 Ren'ai Road, Suzhou 215123, China.|‡Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Ren'ai Road, Suzhou 215123, China.
Xiaomei
X
Xu
†School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, 199 Ren'ai Road, Suzhou 215123, China.|‡Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Ren'ai Road, Suzhou 215123, China.
Chengliang
C
Xiao
†School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, 199 Ren'ai Road, Suzhou 215123, China.|‡Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Ren'ai Road, Suzhou 215123, China.
Daopeng
D
Sheng
†School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, 199 Ren'ai Road, Suzhou 215123, China.|‡Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Ren'ai Road, Suzhou 215123, China.
Juan
J
Diwu
§Shanghai Institute of Applied Physics and Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, Chinese Academy of Sciences, Shanghai 201800, China.
Jing
J
Su
†School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, 199 Ren'ai Road, Suzhou 215123, China.|‡Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Ren'ai Road, Suzhou 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, 199 Ren'ai Road, Suzhou 215123, China.|‡Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Ren'ai Road, Suzhou 215123, China.
Shuao
S
Wang
D000327:Adsorption; D019817:Benzoic Acid / Q000737:chemistry; D002586:Cesium / Q000302:isolation & purification*; D018360:Crystallography, X-Ray; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry*; D016062:Porosity; D014501:Uranium / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods
D009942:Organometallic Compounds; D014874:Water Pollutants, Chemical; D002586:Cesium; D014501:Uranium; D019817:Benzoic Acid