the synthesis of nano-Ag-PVA-H2O sol was described. The nanosilver particles were observed by AFM and TEM. The average diameter of the nanosilver particles was about 24nm (AFM) and 22.6nm (TEM) respectively. The optical absorption property of nano Ag-PVA-H2O sol was researched. Comparing with the value reported by literature
the absorption peak of 403.5 nm presents a 33.5nm red-shift and the absorption line is broadened. The results were analyzed and discussed.