PREPARATION OF SILVER COLLOID USING AQUEOUS REDUCTION OF GREEN CHEMICALS

摘要

A kind of method is used to prepare silver colloid and is arranged to expand silver colloid of the application region of silver colloid product by preparation using the chemical materials of environmental protection, formed by using a deflocculant process and small-sized fill Argent grain. 0.A silver salt solution of 01-200 mM passes through dissolution silver salt preparation in water. One flocculant solution passes through 0. be dissolved in waterIt is prepared by the deflocculant of 01-200 mM. One elementary solution by mixing silver salt solution and flocculant solution preparation, in a range wherein deflocculant relative to silver salt have a molar ratio 0.1-50. One stabilizing solutions are by being dissolved in the 0. of the chitosan of 100 wt% of the decision made in advancePrepared by 01-10 wt%, wherein the 0. of acid solution01-20 wt% are dissolved in 100 wt% of water. One reducing solution passes through 0. be dissolved in waterIt is prepared by the vitamin C of 01-200 mM. One stabilization-reducing solution enters stabilizing solutions preparation by adding reducing solution, and such vitamin C has a molar ratio at least five silver salt. Silver colloid is prepared by stabilization-reducing solution of elementary solution into 100 wt% of mixing 100-200 wt%.