Facile synthesis of Fe-containing metal-organic frameworks as highly efficient catalysts for degradation of phenol at neutral pH and ambient temperature

Qiao Sun, Min Liu, Keyan Li, Yi Zuo, Yitong Han, Junhu Wang, Chunshan Song, Guoliang Zhang, Xinwen Guo

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

In this work, MIL-53(Fe) was synthesized using a solvothermal method under static conditions. However, it was interesting to find that another MIL-53 type material, Fe(BDC)(DMF,F), was obtained when stirring conditions were used while keeping the other conditions fixed. The Fe-containing metal-organic frameworks (MOFs) were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), 57Fe Mössbauer spectrometry and thermogravimetric analysis (TGA). By simply increasing the crystallization time under agitation, the morphology of the Fe(BDC)(DMF,F) crystals went through a striking transition from a bulky irregular shape to a rod-like morphology. The catalytic performance of the Fe-MOFs was evaluated in the degradation of phenol solution at near neutral pH at 35°C. A significantly better catalytic activity was achieved for Fe(BDC)(DMF,F) than for MIL-53(Fe) and NH2-MIL-53(Fe) due to the existence of Fe(ii) in its framework. Phenol was almost completely decomposed in 3 hours, and the conversions of hydrogen peroxide and chemical oxygen demand (COD) were 74.1% and 78.7%, respectively.

Original languageEnglish (US)
Pages (from-to)7160-7168
Number of pages9
JournalCrystEngComm
Volume17
Issue number37
DOIs
StatePublished - Aug 7 2015

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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