Microwave Synthesis of Cuprous Oxide Micro-/Nanocrystals with Different Morphologies and Photocatalytic Activities

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

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Author(s)

  • Qingwei Zhu
  • Yihe Zhang
  • Jiajun Wang
  • Fengshan Zhou
  • Paul K. Chu

Detail(s)

Original languageEnglish
Pages (from-to)289-295
Journal / PublicationJournal of Materials Science and Technology
Volume27
Issue number4
Publication statusPublished - Apr 2011

Abstract

Cuprous oxide micro-/nanocrystals were synthesized by using a simple liquid phase reduction process under microwave irradiation. Copper sulfate was used as the starting materials and macromolecule surfactants served as the templates. The morphologies phase and optical properties of them are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and ultraviolet-visible diffuse reflection absorptive spectra (UV-vis/DRS), respectively. The crystals had four different shapes, namely spheres, strips, octahedrons, and dandelions. The photocatalytic behavior of the cuprous oxide particles were investigated by monitoring the degradation of rhodamine B. In spite of the different morphologies, all of the cuprous oxide micro-/nanocrystals exhibited photocatalytic activities under visible light irradiation in the following order: dandelions, strips, spheres, and octahedral crystals. The photocatalytic degradation rates of rhodamine B are 56.37%, 55.68%, 51.83% and 46.16%, respectively. The morphology affects significantly the photocatalytic performance. © 2011 The Chinese Society for Metals.

Research Area(s)

  • Cuprous oxide, Morphology, Photocatalytsis, Synthesis

Citation Format(s)

Microwave Synthesis of Cuprous Oxide Micro-/Nanocrystals with Different Morphologies and Photocatalytic Activities. / Zhu, Qingwei; Zhang, Yihe; Wang, Jiajun; Zhou, Fengshan; Chu, Paul K.

In: Journal of Materials Science and Technology, Vol. 27, No. 4, 04.2011, p. 289-295.

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