Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 22nd May 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.



Sequential and recyclable sensing of Fe3+ and ascorbic acid in water with a terbium(III)-based metal−organic framework

Abstract

A water-stable three-dimensional (3D) metal−organic framework (MOF) of {[Tb(Cmdcp)(H2O)3]2(NO3)2•5H2O}n (1, H3CmdcpBr = N-carboxymethyl-(3,5-dicarboxyl)pyridinium bromide) has been synthesized and characterized. MOF 1 is highly emissive, giving rise to green luminescence that can be quenched by Fe3+ due to the partial overlap of its excitation spectrum with the absorption spectrum of Fe3+. The subsequent introduction of ascorbic acid (AA) leads to the reduction of Fe3+ into Fe2+, accompanied by the near-entire recovery of MOF 1 emission. The density functional theory (DFT) calculation results support the proposed mechanism. Such sensing cycle is further transferable to urine and serum samples with a satisfactory near-quantitative recovery, highlighting its good potential in biologically relevant applications.

Back to tab navigation

Supplementary files

Publication details

The article was received on 27 Feb 2019, accepted on 13 May 2019 and first published on 14 May 2019


Article type: Paper
DOI: 10.1039/C9DT00871C
Dalton Trans., 2019, Accepted Manuscript

  •   Request permissions

    Sequential and recyclable sensing of Fe3+ and ascorbic acid in water with a terbium(III)-based metal−organic framework

    K. Wu, L. Qin, C. Fan, S. Cai, T. Zhang, W. Chen, X. Tang and J. Chen, Dalton Trans., 2019, Accepted Manuscript , DOI: 10.1039/C9DT00871C

Search articles by author

Spotlight

Advertisements