Microstructure evolution and advanced performance of Mn 3O 4 nanomorphologies

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Chen Chen
  • Guoji Ding
  • Dong Zhang
  • Zheng Jiao
  • Minghong Wu
  • Zhiwen Chen

Detail(s)

Original languageEnglish
Pages (from-to)2590-2596
Journal / PublicationNanoscale
Volume4
Issue number8
Publication statusPublished - 21 Apr 2012

Abstract

Mn 3O 4 morphologies with tetragonal single-crystal nanostructures including nanoparticles, nanorods and nanofractals were successfully prepared by a widely applicable chemical reaction route. The morphologies were synthesized using the reactants MnCl 2· 4H 2O, H 2O 2, and NaOH in a suitable surfactant and alkaline solution. The dripping speed of the NaOH solution plays an important role in the microstructure evolution of Mn 3O 4 morphologies. The difference in the dripping speed of NaOH solutions leads to different Mn 3O 4 nanomorphologies, which are called nanoparticles, nanorods and nanofractals. The average grain size of the Mn 3O 4 nanoparticles ranged from a few to several tens of nanometers. The Mn 3O 4 nanorods were smooth, straight, and the geometrical shape was structurally perfect. Their lengths ranged from several hundred nanometers to a few micrometers, and their diameters ranged from 10 nm to 30 nm. The fractal branches of the Mn 3O 4 nanofractals were a few micrometers in length and several hundred nanometers in width. The catalytic properties of these Mn 3O 4 nanomorphologies for the degradation of phenol were evaluated in detail. The results indicated that the Mn 3O 4 nanofractals possess remarkable catalytic activity for the degradation of phenol in water treatment. © 2012 The Royal Society of Chemistry.

Citation Format(s)

Microstructure evolution and advanced performance of Mn 3O 4 nanomorphologies. / Chen, Chen; Ding, Guoji; Zhang, Dong; Jiao, Zheng; Wu, Minghong; Shek, Chan-Hung; Wu, C. M. Lawrence; Lai, Joseph K.L.; Chen, Zhiwen.

In: Nanoscale, Vol. 4, No. 8, 21.04.2012, p. 2590-2596.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review