A new Keggin-type polyoxometalate catalyst for degradation of aqueous organic contaminants


OLGUN A. , ÇOLAK A. T. , GÜBBÜK İ. H. , ŞAHİN O., Kanar E.

JOURNAL OF MOLECULAR STRUCTURE, vol.1134, pp.78-84, 2017 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 1134
  • Publication Date: 2017
  • Doi Number: 10.1016/j.molstruc.2016.12.059
  • Title of Journal : JOURNAL OF MOLECULAR STRUCTURE
  • Page Numbers: pp.78-84
  • Keywords: Polyoxometalate, Catalytic, Methyl orange, Rhodamine B, Methyl red, Congo red, HYDROTHERMAL SYNTHESES, SILVER NANOPARTICLES, CRYSTAL-STRUCTURES, AZO-DYE, TUNGSTOBORATE, RECOGNITION, OXIDATION, DESIGN, FILM

Abstract

In this study, a new polyoxometalate,K-16[Ni(H2O)(6)](2)[BW12O40]4(center dot)48H(2)O (1) was synthesized at room temperature and characterized by X-ray single crystal diffractions, elemental analyses, IR spectra, and thermo gravimetric analyses (TGA). Crystal structure analysis reveals that compound 1 exhibits a supramolecular structure containing one Keggin-type [BW12O40](4) heteropoly anion. The catalytic properties of this molecule for the degradation of Methyl red (MR), Rhodamine B (RhB), Methyl orange (MO) and Congo red (CR) were investigated. The results show that the compound 1 is a promising catalyst candidate for dye degradation. (C) 2016 Elsevier B.V. All rights reserved.