Synthesis of nanocrystalline Ag2S in aqueous solution

Precipitation reaction of a sulfur alkaline solution with a silver complex aqueous solution produces nanocrystalline Ag2S at room temperature under at mospheric pressure. The product has been characterized through XRD, TEM and XPS analysis. The results show that the sulfur alkaline solution makes Ag2 S crystallize well in aqueous solution. The silver complex as a reagent, re lative to the silver ion, reduces the byproduct greatly. The synthesis proc eeds rapidly and conveniently. (C) 2000 Elsevier Science B.V. All rights re served.