Low-temperature synthesis of ZnO quantum dots for photocatalytic degradation of methyl orange dye under UV irradiation

Rizwan Khan, M. Shamshi Hassan, Lee Woon Jang, Jin Hyeon Yun, Haeng Keun Ahn, Myung Seob Khil, In-Hwan Lee

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

ZnO quantum dots were synthesized by a facile low-temperature solution process. The detailed structural characterizations revealed that the prepared nanoparticles were spherical in shape and possessed high crystallinity. The photocatalytic activity of ZnO quantum dots was examined for the use in the degradation of methyl orange dye, and exhibited high efficiency in decomposition of methyl orange (97% within 160 min) under UV irradiation. This excellent photocatalytic property was attributed to high crystalline quality of ZnO quantum dots that produced reactive species to decompose the dye on the catalyst surface.

Original languageEnglish
Pages (from-to)14827-14831
Number of pages5
JournalCeramics International
Volume40
Issue number9 PART B
DOIs
Publication statusPublished - 2014 Jan 1
Externally publishedYes

Keywords

  • Methyl orange dye
  • Photocatalytic activity
  • Quantum dot
  • Solution process
  • ZnO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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