SYNTHESIS OF ALUMINUM GERMANATE TUBULAR MATERIAL USING GERMANIUM OXIDE AS THE SOURCE OF GERMANIUM

MASASHI OOKAWA; YOSHIHIRO HIRAO; MASAKO WATANABE; TAKASHI MAEKAWA; KEIICHI INUKAI; SANAE MIYAMOTO; TSUTOMU YAMAGUCHI

doi:10.11362/jcssjclayscience1960.13.69

MASASHI OOKAWA, YOSHIHIRO HIRAO, MASAKO WATANABE, TAKASHI MAEKAWA, KEIICHI INUKAI, SANAE MIYAMOTO, TSUTOMU YAMAGUCHI

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Keywords: Imogolite, Nanotube, Aluminum germanate, Tapping mode AFM

JOURNAL FREE ACCESS

2006 Volume 13 Issue 2 Pages 69-73

DOI https://doi.org/10.11362/jcssjclayscience1960.13.69

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Abstract

We synthesized a nano-scale aluminum germanate tubular material with a similar structure of clay mineral imogolite. This nano-tubular material can be obtained from a concentratedinorganic solution using GeO₂ dissolved in NaOH as the source of germanium. The IR spectrum, powder X-ray diffraction profile and TEM image are similar to those of previously reported aluminum germanate tubular material prepared using GeCl₄. Tapping mode atomic force microscopy revealed that our novel material had tubes which were shorter in length and wider in diameter than those of synthetic imogolite.

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