Synthesis and photocatalytic activity of sea urchin-shaped rutile TiO 2 nanocrystals

Koichiro Hayashi, Michihiro Nakamura, Yoji Makita, Rise Fujiwara, Toshinari Kori, Kazunori Ishimura

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


Sea urchin-shaped rutile nanostructures (SUR NSs) with abundant {110} surfaces are synthesized at 60 °C under atmospheric pressure. The SUR NSs were ∼ 420 nm in diameter and contain a number of needle-like rutile single crystals grown parallel to the (110) face from a single nucleus in a radial fashion. The photocatalytic activity of the SUR NSs is significantly higher than that of commercial rutile nanoparticles with the same specific surface area. This demonstrates that {110} facets are effective in enhancing photoactivity.

Original languageEnglish
Pages (from-to)3037-3040
Number of pages4
JournalMaterials Letters
Issue number19-20
Publication statusPublished - Oct 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

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


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