標題: Fabrication of gold nanoparticle-doped zeolite L crystals and characterization by optical microscopy: Laser ablation- and crystallization inclusion-based approach
作者: Hashimoto, Shuichi
Uwada, Takayuki
Masuhara, Hiroshi
Asahi, Tsuyoshi
應用化學系
應用化學系分子科學碩博班
Department of Applied Chemistry
Institute of Molecular science
公開日期: 2-Oct-2008
摘要: This letter reports the optical microscopy characterization of gold nanoparticle-doped zeolite L crystals prepared by applying two key techniques: laser ablation and crystallization inclusion. The former allowed the stable formation of Au NPs in the synthesis gel, while the latter permitted the encapsulation of Au NPs exceeding the pore openings of the zeolite crystals, still maintaining the crystal structure as a whole. The microscopy characterization was performed by exploiting single particle light scattering spectroscopy and imaging techniques which offered the Rayleigh scattering images of individual An particles within the crystals and the scattering spectra ascribable to the surface plasmon resonance band of Au NPs embedded. This is a unique demonstration for the application of laser ablation-induced NPs in solution to practical use for fabricating a nanocomposite material. Furthermore, the present results revealed that the dark field microscopy is capable of visualizing metal nanoparticles as small as 40 nm diameter confined in the light scattering crystalline medium.
URI: http://dx.doi.org/10.1021/jp8063189
http://hdl.handle.net/11536/8263
ISSN: 1932-7447
DOI: 10.1021/jp8063189
期刊: JOURNAL OF PHYSICAL CHEMISTRY C
Volume: 112
Issue: 39
起始頁: 15089
結束頁: 15093
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