Processing of porous spherical Co-doped SiO2/Cu-grafted TiO2 hybrid particles for the decomposition of gaseous acetaldehyde in the dark and under visible light

Chengshu Li, Masahiro Yoshimura, Naoto Hotsuki, Toshihiro Isobe, Chang An Wang, Sachiko Matsushita, Akira Nakajima

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Abstract

Spherical Co-doped SiO2/Cu-grafted TiO2 hybrid particles were prepared using organic spherical monolith particles as a template. Rutile was crystallized in the monolith particles impregnated with a TiO2 precursor solution by hydrothermal treatment in a strong acid condition (2 M HCl). Subsequent UV illumination assisted efficient decomposition of organic compounds in the particles during firing. The solvent of the solution for Cu grafting affects the pore structure. Ethanol was more suitable than water for the particles prepared in this study. The hybrid particles, after firing at 500 °C in air, possessed decomposition activity against gaseous acetaldehyde both in the dark and under visible light.

Original languageEnglish
Pages (from-to)397-400
Number of pages4
JournalMaterials Letters
Volume139
DOIs
Publication statusPublished - 2015 Jan 15

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All Science Journal Classification (ASJC) codes

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

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