SYNTHESIS AND CHARACTERIZATION OF Zn-SUBSTITUTED SAPONITE (SAUCONITE)
スポンサーリンク
概要
- 論文の詳細を見る
Sauconites were synthesized hydrothermally from a homogeneous gel with stoichiometric chemical composition in a temperature range of 100-200℃ for up to 14 d at autogenous pressure. The synthetic products were characterized by XRD, SEM, TEM, ICP-AES, FT-IR and XPS. The well-crystallized sauconite without impurities was obtained after 100℃ treatment. At 150 and 200℃, sauconite coexisted with small amount of hemimorphite(Zn_4Si_2O_7(OH)_2.H_2O) and willemite (Zn_2SiO_4). The octahedral coordination of Zn in synthesized sauconite was confirmed by FT-IR and XPS spectra, comparing with those of natural mica containing Zn in the octahedral layer (hendricksite). The FT-IR spectra of synthetic sauconite showed the characteristic bands at 660 cm^<-1> for Zn-O vibration and 3635 cm^<-1> for 3Zn-OH stretching in the octahedral sheets, which are comparable to those of hendricksite. The Zn(3p) peak of sauconite in XPS spectrum was observed which corresponded with that of hendricksite. These results indicated that Zn in sauconite was coordinated octahedrally as Zn in hendricksite.
- 日本粘土学会の論文
著者
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TAMURA KENJI
National Institute for Materials Science
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YAMADA HIROHISA
National Institute for Materials Science
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Hatta Tamao
Japan International Res. Center For Agricultural Sci. Ibaraki Jpn
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Yamada Hirohisa
National Institute For Research In Inorganic Materials
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TAMURA Kenji
Photocatalytic Materials Center, National Institute for Materials Science
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Yamada H
National Institute For Research In Inorganic Materials
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Yamada Hirohisa
Photocatalystic Materials Center National Inst. For Materials Sci.
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Yamada Hirohisa
National Institute For Materials Science (nims)
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NEMOTO Seiko
Japan International Research Center for Agricultural Sciences (JIRCAS)
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Nemoto Seiko
Japan International Research Center For Agricultural Sciences
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WATANABE YUJIRO
College of Environmental Engineering and Architecture, Kanazawa Institute for Technology
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YOKOYAMA SHINGO
Photocatalytic Materials Center, National Institute for Materials Science
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TAMURA Kenji
NIMS
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Tamura Kenji
National Institute For Materials Science (nims)
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Yokoyama Shingo
Photocatalytic Materials Center National Institute For Materials Science
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Watanabe Yujiro
College Of Environmental Engineering And Architecture Kanazawa Institute For Technology
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WATANABE YUJIRO
College of Bioscience and Chemistry, Department of Applied Chemistry, Kanazawa Institute of Technology
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