期刊
MICROPOROUS AND MESOPOROUS MATERIALS
卷 116, 期 1-3, 页码 478-484出版社
ELSEVIER
DOI: 10.1016/j.micromeso.2008.05.007
关键词
Biomorphic; Nanopores; Au nanoparticles; Size distribution; Visible light
类别
资金
- National Natural Science Foundation of China [50401005, 50671065]
- New Century Excellent Talents in University [NCET-04-0387]
- Shanghai Pujiang Program [06PJ14050]
- Nano-research Program of Shanghai [05nm05020]
- National Basic Research Program of China [2006CB601200]
- Shanghai Jiaotong
A facile method to synthesize biomorphic N-doped TiO2 (N-TiO2) templated with cotton and further assemble Au nanoparticles within the nanopores is reported. Biomorphic N-TiO2 is synthesized through a one-step infiltration and calcination process with the aid of acetylacetone (acac) as a controlling agent to the hydrolysis and condensation of N-doped TiO2 precursor to make it depositing on the template. The doping N atoms are in the interstitial sites of TiO2 lattice and responsible for visible light sensitivity. The sizes of the nanopores of biomorphic N-TiO2 are mono-distributed, which results in Au nanoparticles with controlled narrow size distribution and high stability. The biomorphic Au/N-TiO2 shows an overall increasing in light absorption and prominent surface plasmon resonance (SPR) peak within visible range. (C) 2008 Elsevier Inc. All rights reserved.
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