A magnetically separable photocatalyst based on nest-like γ-Fe₂O₃/ZnO double-shelled hollow structures with enhanced photocatalytic activity

Nanoscale. 2012 Jan 7;4(1):183-7. doi: 10.1039/c1nr11114k. Epub 2011 Nov 9.

Abstract

Magnetic nest-like γ-Fe(2)O(3)/ZnO double-shelled hollow nanostructures have been successfully synthesized via a multi-step process. The materials have been thoroughly characterized by different techniques. These interesting nest-like hollow nanostructures are composed of ZnO nanoflakes grown on the surface of γ-Fe(2)O(3) hollow spheres. Importantly, these magnetic hollow nanostructures show very high visible-light photocatalytic activity for the degradation of different organic dyes including methylene blue (MB), Rhodamine-B (RhB), and methyl orange (MO). It is further demonstrated that these γ-Fe(2)O(3)/ZnO hybrid photocatalysts are highly stable and can be used repeatedly.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Azo Compounds / chemistry
  • Catalysis
  • Ferric Compounds / chemistry*
  • Ferrosoferric Oxide / chemistry
  • Magnetics
  • Methylene Blue / chemistry
  • Photochemical Processes
  • Rhodamines / chemistry
  • Zinc Oxide / chemistry*

Substances

  • Azo Compounds
  • Ferric Compounds
  • Rhodamines
  • ferric oxide
  • methyl orange
  • rhodamine B
  • Zinc Oxide
  • Methylene Blue
  • Ferrosoferric Oxide