Issue 41, 2014

An electrodeposited lanthanide MOF thin film as a luminescent sensor for carbonate detection in aqueous solution

Abstract

A luminescent lanthanide MOF-based thin film [{[Eu(HBPTC)(H2O)2]·2DMF}n] (BPTC = benzophenone-3,3′,4,4′-tetracarboxylate) was successfully fabricated by electrodeposition in an anhydride system. In this approach, HO anions will accumulate near the cathode while applying a direct current in nitrate solution, followed by benzophenone-3,3′,4,4′-tetracarboxylic dianhydride (BTDA) hydrolysis and the consequent growth of MOFs directly on an electrode surface. The influence of the concentration of the electrolyte, current density, and conductive salt on the synthesis of MOF films were investigated. We demonstrate that the carboxylic acid ligands can be replaced by the anhydride to fabricate the lanthanide MOF-based thin film by cathodic electrodeposition. Moreover, photoluminescent properties of this film were investigated and the photoluminescent measurement indicated that this luminescent MOF thin film is a highly selective sensor for carbonate in aqueous solution.

Graphical abstract: An electrodeposited lanthanide MOF thin film as a luminescent sensor for carbonate detection in aqueous solution

Supplementary files

Article information

Article type
Paper
Submitted
16 ጁላይ 2014
Accepted
21 ኦገስ 2014
First published
27 ኦገስ 2014

J. Mater. Chem. C, 2014,2, 8683-8690

Author version available

An electrodeposited lanthanide MOF thin film as a luminescent sensor for carbonate detection in aqueous solution

H. Liu, H. Wang, T. Chu, M. Yu and Y. Yang, J. Mater. Chem. C, 2014, 2, 8683 DOI: 10.1039/C4TC01551G

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