water adsorption on nano-ball allophane as affected by heat treatments, infrared (IR) and X-rays powder diffraction (XRD)

kan hamayon; 松枝 直人; 逸見 彰男

doi:10.11362/cssj2.50.0.19.0

第50回粘土科学討論会

セッションID: A19

DOI https://doi.org/10.11362/cssj2.50.0.19.0

会議情報

主催: 日本粘土学会

共催: 資源・素材学会, 資源地質学会, ゼオライト学会, 地盤工学会, 日本化学会, 日本火山学会, 日本岩石鉱物鉱床学会, 日本鉱物学会, 日本セラミックス協会, 日本セラミックス協会原料部会, 日本第四紀学会, 日本地学教育学会, 日本地球化学会, 日本地質学会, 日本土壌肥料学会, 日本熱測定学会, 日本ペドロジー学会, 農業土木学会

water adsorption on nano-ball allophane as affected by heat treatments, infrared (IR) and X-rays powder diffraction (XRD)

*kan hamayon, 松枝直人, 逸見彰男

著者情報

キーワード: Allophane, water adsorption, heat treatment, infrared spectroscopy, X-rays powder diffraction

会議録・要旨集フリー

詳細

抄録

water adsorption on allophane samples (KnP and KyP) was examined under relative humidity (RH) from 0 to 98%. The adsorption isotherm coincided with langmuir equation up to 0.52 RH. There was a similar decrease in water adsorption at monolayer level. The decomposition of imogolite undermined the IR band at 348cm^-1 and XRD at 2.25 and 1.40Å due to high temprature and was found absent at 400℃. The XRD at 3.3-3.45Å moved to 3.6Å due to thermal condensation of silica.

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