Pd nanoparticles supported on MIL-101/reduced graphene oxide photocatalyst: an efficient and recyclable photocatalyst for triphenylmethane dye degradation

Environ Sci Pollut Res Int. 2015 Nov;22(21):17238-43. doi: 10.1007/s11356-015-5364-z. Epub 2015 Sep 22.

Abstract

To improve the photocatalytic efficiency of chromium-based metal-organic framework (MIL-101) photocatalyst, Pd nanoparticles and reduced graphene oxide were used to modify the MIL-101 via a facile method. The resulting novel photocatalyst was characterized by UV-vis diffuse reflectance spectra (DRS), powder X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). It was indicated that the photocatalyst afforded high photocatalytic efficiency for degradation of two triphenylmethane dyes, brilliant green and acid fuchsin, under exposure to visible light irradiation. Cyclic experiments demonstrated that the photocatalyst showed good reusability and stability for the dye degradation.

Keywords: Graphene oxide; MIL-101; Pd nanoparticles; Photocatalytic degradation; Triphenylmethane dye.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Chromium
  • Coloring Agents / isolation & purification*
  • Coloring Agents / radiation effects
  • Coordination Complexes / chemistry*
  • Environmental Pollutants / isolation & purification
  • Environmental Pollutants / radiation effects
  • Graphite / chemistry*
  • Light*
  • Metal-Organic Frameworks
  • Microscopy, Electron, Transmission
  • Nanoparticles / chemistry*
  • Oxides
  • Palladium / chemistry*
  • Photoelectron Spectroscopy
  • Trityl Compounds / isolation & purification*
  • Trityl Compounds / radiation effects
  • X-Ray Diffraction

Substances

  • Coloring Agents
  • Coordination Complexes
  • Environmental Pollutants
  • MIL-101
  • Metal-Organic Frameworks
  • Oxides
  • Triphenylmethyl Compounds
  • Chromium
  • Palladium
  • Graphite
  • triphenylmethane