Glycine assisted synthesis of flower-like TiO 2 hierarchical spheres and its application in photocatalysis

Yugui Tao, Yanqiu Xu, Jun Pan, Hao Gu, Changyun Qin, Peng Zhou

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

Flower-like anatase TiO 2 hierarchical spheres assembled by nanosheets were synthesized by glycine assistant via a simple hydrothermal approach and after-annealing process. These flower-like spheres are about 2 μm in diameter with sheet thickness about 20 nm. Results showed reaction time, temperature, solution pH and glycine dosage all played an important role in control of shape and size of the as-synthesized TiO 2 nanocrystals. The photocatalytic activity of this nano-TiO 2 was evaluated by the photocatalytic oxidation decomposition of methyl orange under sunlight illumination in the presence of hydrogen peroxide (H 2O 2). The photocatalytic activity of the obtained TiO 2 was higher than that of commercial TiO 2. © 2012 Elsevier B.V.
Original languageEnglish (US)
Pages (from-to)1664-1671
Number of pages8
JournalMaterials Science and Engineering: B
Volume177
Issue number18
DOIs
StatePublished - Nov 2012

ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Science(all)
  • Mechanical Engineering
  • Condensed Matter Physics

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