Size-, mass-, and density-controlled preparation of TiO2 nanoparticles in a spherical coordination template

Tatsuya Ichijo; Sota Sato; Makoto Fujita

doi:10.1021/ja4019995

Size-, mass-, and density-controlled preparation of TiO₂ nanoparticles in a spherical coordination template

Tatsuya Ichijo, Sota Sato, Makoto Fujita

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

TiO₂ nanoparticles were prepared with strict control of the size, molecular mass (PDI = 1.02), and mass density by hydrolyzing a precursor, Ti(acac)₂(biphen), in the presence of a well-defined hollow Pd ₁₂L₂₄ spherical endotemplate. The formation of highly monodisperse TiO₂ nanoparticles was confirmed by ¹H NMR spectroscopy, MALDI-TOF mass spectrometry, transmission electron microscopy, and atomic force microscopy. The template was easily removed by treating the sphere with a metal scavenger followed by calcination to give crystalline TiO ₂ nanoparticles (2.0 ± 0.2 nm in diameter), which showed photocatalytic activity.

Original language	English
Pages (from-to)	6786-6789
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	135
Issue number	18
DOIs	https://doi.org/10.1021/ja4019995
Publication status	Published - 2013 May 8

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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abstract = "TiO2 nanoparticles were prepared with strict control of the size, molecular mass (PDI = 1.02), and mass density by hydrolyzing a precursor, Ti(acac)2(biphen), in the presence of a well-defined hollow Pd 12L24 spherical endotemplate. The formation of highly monodisperse TiO2 nanoparticles was confirmed by 1H NMR spectroscopy, MALDI-TOF mass spectrometry, transmission electron microscopy, and atomic force microscopy. The template was easily removed by treating the sphere with a metal scavenger followed by calcination to give crystalline TiO 2 nanoparticles (2.0 ± 0.2 nm in diameter), which showed photocatalytic activity.",

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AB - TiO2 nanoparticles were prepared with strict control of the size, molecular mass (PDI = 1.02), and mass density by hydrolyzing a precursor, Ti(acac)2(biphen), in the presence of a well-defined hollow Pd 12L24 spherical endotemplate. The formation of highly monodisperse TiO2 nanoparticles was confirmed by 1H NMR spectroscopy, MALDI-TOF mass spectrometry, transmission electron microscopy, and atomic force microscopy. The template was easily removed by treating the sphere with a metal scavenger followed by calcination to give crystalline TiO 2 nanoparticles (2.0 ± 0.2 nm in diameter), which showed photocatalytic activity.

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