銅水酸化物-バーミキュライト複合体の合成

概要

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A Copper hydroxide-vermiculite complex (CHVC), Cu_<1.61>(OH)_<2.38>(Si_<2.95>Al_<1.05>)(Mg_<2.75>Fe_<0.22>Ti_<0.02>)O_<10>(OH)_2・nH_2O, having a particle size in the range from 1 to 3 mm was prepared from a Zimbabwe vermiculite by hydrothermally treating at 250℃ for 40h in copper nitrate solution. X-ray diffraction patterns of the products were characterized by d_<001> reflection of 1.4 nm and their subsequent interger reflections. One-dimensional Fourier electron density analysis revealed that the interlayer structure of CHVC is similar to that of a natural chlorite. The thermal behavior of CHVC was characterized by high temperature X-ray diffractometry and TG-DTA technique. Copper hydroxide in the interlayer was dehydroxyrated in the temperature range from ca. 300 to 700℃. By heating at higher temperature, copper oxide deposited on the surface of the silicate layer.
社団法人日本セラミックス協会の論文
2000-06-01