Journal of Inorganic Materials ›› 2011, Vol. 26 ›› Issue (3): 317-320.DOI: 10.3724/SP.J.1077.2011.00317

• Research Paper • Previous Articles     Next Articles

Preparation and Photocatalytic Activity of Mn2O3 Microspheres

XIA Hong- Yu 1, HU Lin2, YAO Qi -Z hi 2   

  1. 1. School of Chemistry and Chemical Engineering, Anqing Normal College,Anqing 246011, China; 2. Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
  • Received:2010-06-08 Revised:2010-09-26 Published:2011-03-20 Online:2011-02-18
  • Supported by:

    National Nature Science Foundation of China (20771006, 20871005); Nature Science Foundation of Anhui Province (2006kj042A)

Abstract: Mn2O3 microspheres were synthesized by a two-step method in ethylene glycol (EG)system. First, the precursor was produced in the presence of ethylene glycol(EG) by using MnCl2?4H2O and sodium acetate (NaAc) as reactants. Second, the precursor was calcined to obtain the products of crystalline Mn2O3. The products were characterized by powder X-ray diffraction (XRD), transmission electron microscope (TEM) and scanning electron microscope (SEM). Moreover, the photocatalytic activity of the products was examined by measuring the photodegradation of methyleneblue solution with ultraviolet radiation in the presence of H2O2.The results show that the as-synthesized Mn2O3 microspheres assembled by nanoslices, which is composed of large quantity of nanoparticles. And the average diameters of the Mn2O3 microspheresare 7μm. The formation mechanism of the Mn2O3 microspheres is simply discussed. And the Mn2O3 microspheres have good photocatalyticactivity due to its particular structure.

Key words: Mn2O3 microsphere, synthesis, photocatalyticactivity

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