Issue 15, 2018

An ultrastable Zr-MOF for fast capture and highly luminescence detection of Cr2O72− simultaneously in an aqueous phase

Abstract

Herein, using the modulator synthesis approach, a zirconium-based metal–organic framework (Zr-MOF), [Zr6O4(OH)4L4(H2O)2(HCOO)4]·9DMF·12H2O (JLU-MOF50, L = H2MDCPB = 5′-methyl-[1,1′,3′,1′′-terphenyl]-4,4′′-dicarboxylic acid, DMF = N,N-dimethylformamide), with pcu topology was successfully synthesized and structurally characterized. JLU-MOF50 exhibits excellent chemical stability in both acidic and alkaline aqueous solutions. Due to the missing linker sites, high porosity (BET surface area of 1101 m2 g−1), and excellent luminescence property, JLU-MOF50 possesses dual functionalities, which exhibits not only a commendable trapping capacity (92 mg g−1) and an adsorption rate (32.5 mg g−1 min−1), but also high detection sensitivity and selectivity for Cr2O72− in an aqueous phase. It is worth mentioning that the KSV value of JLU-MOF50 towards Cr2O72− can reach up to 4.99 × 104 M−1, which is one of the highest values reported to date for MOF materials. Based on the aforementioned properties, JLU-MOF50 is a good candidate for fast capture and highly luminescence detection of Cr2O72− simultaneously in an aqueous phase.

Graphical abstract: An ultrastable Zr-MOF for fast capture and highly luminescence detection of Cr2O72− simultaneously in an aqueous phase

Supplementary files

Article information

Article type
Paper
Submitted
01 Feb 2018
Accepted
07 Mar 2018
First published
09 Mar 2018

J. Mater. Chem. A, 2018,6, 6363-6369

An ultrastable Zr-MOF for fast capture and highly luminescence detection of Cr2O72− simultaneously in an aqueous phase

X. Sun, S. Yao, C. Yu, G. Li, C. Liu, Q. Huo and Y. Liu, J. Mater. Chem. A, 2018, 6, 6363 DOI: 10.1039/C8TA01060A

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