Study of In-Liquid Synthesis Method of Diamond

—Technical Development aimed for Chemical change/Cut/Precipitation and Self-assembly/Aggregation—

Abstract

Diamond is synthesized under the atmospheric pressure and ambient temperature conditions in the present research that aims to construct the in-liquid synthesis technique. The developed technology and the obtained results for an in-liquid synthesis method (iLS method) are as follows; an acetone (organic solvent) dissolves polystyrene, and KOH aqueous solution dissolves and decomposes gelatin/cocoon or rice. The active carbons (included free carbon) and the organic compounds form in an organic sol by chemical change originated between two different liquids solved organic polymers. The organic sol turns its color to black from transparent thin yellow by chemical change between an organic solvent and KOH aqueous solution. The black organic sol appears to contain many free carbons that generated by decomposing active carbons and organic compounds, because an ultraviolet cut their combined bridges in the organic sol. The free carbon precipitated on the diamond substrate forms diamond by the possible adoption of the self-assembly·aggregation. An ultraviolet irradiation leads to precipitate much diamond and less organic polymer and the absence of an ultraviolet causes less diamond and much organic polymer that precipitate on diamond substrate. Diamond is easily to precipitate and aggregate on natural diamond and polycrystalline diamond in mixing organic sol.