Silica-Water-Organics Interactions

Satoru NAKASHIMA; Yuki ITO; Dai SHIOTA

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Silica-Water-Organics Interactions

机译：Silica-Water-Organics Interactions

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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 on 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.

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《岩石鉱物科学》 |2002年第1期|58-61|共4页
作者
Satoru NAKASHIMA; Yuki ITO; Dai SHIOTA;
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作者单位

Interactive research Center of Science, Graduate School of Science and Engineering, Tokyo Institute of Technology 2-12-1, O-okayama, Meguro, Tokyo 152-8551, Japan;

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中图分类岩石学;
关键词
Hydrous silica; Dehydration-polymerization; Biogenic organic compounds; Amino acids; Biogeochemical cycling; Origin of life; Chemical evolution; Kinetics; Thermodynamics;

Silica-Water-Organics Interactions

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