A novel highly luminescent LnMOF film: A convenient sensor for Hg2+detecting

Yi Min Zhu, Cheng Hui Zeng, Tian Shu Chu, Hong Ming Wang, Yang Yi Yang, Ye Xiang Tong, Cheng Yong Su, Wing Tak Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

143 Citations (Scopus)

Abstract

A highly luminescent LnMOF {[Eu2(bqdc)3(H2O)(DMF)3]·0.5DMF·H2O}n(1, bqdc = 2,2′-biquinoline-4,4′-dicarboxylate) was designed and synthesized. It was characterized by single crystal X-ray diffraction, PXRD, TGA, EA and FT-IR. A new strategy for preparing mechanically robust MOF thin films was developed by electrodeposition in combination with subsequent solvothermal synthesis. A portable sensor device prototype consisting of a film of 1 was conveniently fabricated by using this new strategy and this sensor device exhibits a highly selective response to Hg2+. Its luminescence quenching can be distinguished clearly with the naked eye when illuminated by a handy UV banknote detector. The diffusion kinetics of Hg2+into the LnMOF film is first proposed.
Original languageEnglish
Pages (from-to)11312-11319
Number of pages8
JournalJournal of Materials Chemistry A
Volume1
Issue number37
DOIs
Publication statusPublished - 7 Oct 2013

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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