A method to attach silver nanoplates on the silica surface has been developed. This is based on a conventional two steps seed mediated growth. The surface of SiO2 colloids, with a size around 220 nm has been modified with an amino group. The silver nitrate has then been attached under further sonicate. The silver nitrate attached on the silica surface has been used as a precursor in the preparation of the citrate-stabilized seed solution. Finally in a growth solution for the growth of the nanoplates, silver nitrate has been reduced with ascorbic acid with the presence of the silver seeds attached on the silica surface, additional trisodium citrate and a polymer as a polyvinylpyrrolidone.
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