Abstract
Silica-hybridized hydroxyapatite powder was prepared from a calcium hydroxide and phosphoric acid together with a tetra-n-butyl orthosilicate as the silica source in order to apply it as a gas adsorbent. According to the X-ray diffraction patterns, all peaks were assigned to the hydroxyapatite. No secondary phases, such as calcium hydroxide and silicon oxides, were observed. Moreover, the transmission electron microscope observations indicated that the crystallite size hardly changed by increasing the silicon oxide content. However, the adsorption areas of nitrogen, water and benzene were remarkably dependent on the silicon oxide content. In this paper, in order to explain the change in the adsorption areas, the lattice structure of the silica-hybridized hydroxyapatite is discussed based on the results obtained by the 29Si and 31P magic angle spinning-nuclear magnetic resonance spectroscopy (MAS-NMR).
| Original language | English |
|---|---|
| Pages (from-to) | 769-773 |
| Number of pages | 5 |
| Journal | Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan |
| Volume | 114 |
| Issue number | 1333 |
| DOIs | |
| Publication status | Published - 2006 |
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Keywords
- Si MAS-NMR
- P MAS-NMR
- Adsorption
- Hydroxyapatite
- Silica
ASJC Scopus subject areas
- Ceramics and Composites
Cite this
Synthesis and structural characterization of silica-hybridized hydroxyapatite with gas adsorption capability. / Fujii, Eiji; Kawabata, Koji; Ando, Kanae; Tsuru, Kanji; Hayakawa, Satoshi; Osaka, Akiyoshi.
In: Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, Vol. 114, No. 1333, 2006, p. 769-773.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synthesis and structural characterization of silica-hybridized hydroxyapatite with gas adsorption capability
AU - Fujii, Eiji
AU - Kawabata, Koji
AU - Ando, Kanae
AU - Tsuru, Kanji
AU - Hayakawa, Satoshi
AU - Osaka, Akiyoshi
PY - 2006
Y1 - 2006
N2 - Silica-hybridized hydroxyapatite powder was prepared from a calcium hydroxide and phosphoric acid together with a tetra-n-butyl orthosilicate as the silica source in order to apply it as a gas adsorbent. According to the X-ray diffraction patterns, all peaks were assigned to the hydroxyapatite. No secondary phases, such as calcium hydroxide and silicon oxides, were observed. Moreover, the transmission electron microscope observations indicated that the crystallite size hardly changed by increasing the silicon oxide content. However, the adsorption areas of nitrogen, water and benzene were remarkably dependent on the silicon oxide content. In this paper, in order to explain the change in the adsorption areas, the lattice structure of the silica-hybridized hydroxyapatite is discussed based on the results obtained by the 29Si and 31P magic angle spinning-nuclear magnetic resonance spectroscopy (MAS-NMR).
AB - Silica-hybridized hydroxyapatite powder was prepared from a calcium hydroxide and phosphoric acid together with a tetra-n-butyl orthosilicate as the silica source in order to apply it as a gas adsorbent. According to the X-ray diffraction patterns, all peaks were assigned to the hydroxyapatite. No secondary phases, such as calcium hydroxide and silicon oxides, were observed. Moreover, the transmission electron microscope observations indicated that the crystallite size hardly changed by increasing the silicon oxide content. However, the adsorption areas of nitrogen, water and benzene were remarkably dependent on the silicon oxide content. In this paper, in order to explain the change in the adsorption areas, the lattice structure of the silica-hybridized hydroxyapatite is discussed based on the results obtained by the 29Si and 31P magic angle spinning-nuclear magnetic resonance spectroscopy (MAS-NMR).
KW - Si MAS-NMR
KW - P MAS-NMR
KW - Adsorption
KW - Hydroxyapatite
KW - Silica
UR - http://www.scopus.com/inward/record.url?scp=33748314686&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33748314686&partnerID=8YFLogxK
U2 - 10.2109/jcersj.114.769
DO - 10.2109/jcersj.114.769
M3 - Article
AN - SCOPUS:33748314686
VL - 114
SP - 769
EP - 773
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 1333
ER -