Rational Design of a Uranyl Metal-Organic Framework for the Capture and Colorimetric Detection of Organic Dyes

被引：17

作者：

Surbella, Robert G., III ^{[1
]}

Carter, Korey P. ^{[2
]}

Lohrey, Trevor D. ^{[2
,3
]}

Reilly, Dallas ^{[1
]}

Kalaj, Mark ^{[4
]}

McNamara, Bruce K. ^{[1
]}

Schwantes, Jon ^{[1
]}

Abergel, Rebecca J. ^{[2
]}

机构：

[1] Pacific Northwest Natl Lab, Richland, WA 99354 USA

[2] Lawrence Berkeley Natl Lab, Chem Sci Div, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[4] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2020年 / 26卷 / 61期

关键词：

actinide; adsorption; luminescence; metal-organic frameworks; uranium; URANIUM; ADSORPTION;

D O I：

10.1002/chem.201905766

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new uranyl containing metal-organic framework, RPL-1: [(UO2)(2)(C28H18O8)] center dot H2O (RPL for Radiochemical Processing Laboratory), was prepared, structurally characterized, and the solid-state photoluminescence properties explored. Single crystal X-ray diffraction data reveals the structure of RPL-1 consists of two crystallographically unique three dimensional, interpenetrating nets with a 4,3-connected tbo topology. Each net contains large pores with an average width of 22.8 angstrom and is formed from monomeric, hexagonal bipyramidal uranyl nodes that are linked via 1,2,4,5-tetra-kis(4-carboxyphenyl)benzene (TCPB) ligands. The thermal and photophysical properties of RPL-1 were investigated using thermogravimetric analysis and absorbance, fluorescence, and lifetime spectroscopies. The material displays excellent thermal stability and temperature dependent uranyl and TCPB luminescence. The framework is stable in aqueous media and due to the large void space (constituting 76% of the unit cell by volume) can sequester organic dyes, the uptake of which induces a visible change to the color of the material.

引用

页码：13819 / 13825

页数：7

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