鉱物学会2001年シンポジウム
「シリカ鉱物—広く議論しよう地球科学から材料科学まで」
「シリカ鉱物—広く議論しよう地球科学から材料科学まで」
シリカ—水—有機物相互作用
2002 年 31 巻 1 号 p. 58-61
詳細
2002 年 31 巻 1 号 p. 58-61
At the earth's surface, divers organic-inorganic interactions are occurring and controlling the biogeochemical cycling. In this paper, we will review the experimental results on silica-organic interactions in aqueous solutions. The kinetics of dehydration-crystallization of hydrated amorphous silica into more crystalline forms during the diagenesis of siliceous marine sediments was studied and the influence of some biogenic organic compounds was evaluated. The transformation of amino acids on hydrous silica was also studied in order to test a new hypothesis on the origin of life: coupled dehydration-polymerization in silica-amino acid systems. The significance of organic-inorganic interactions in the fate of organic pollutants in the earth's surface will also be pointed out.
