Precipitation of dispersed silver particles using acetone as reducing agent.
A novel environmentally friendly solution-based method for preparing dispersed silver particles is described. The simple and convenient approach consists in heating silver oxide particles dispersed in a highly alkaline water/acetone mixture. The data presented clearly show that acetone reduces completely and rapidly Ag(2)O particles to metallic silver at 60°C. A mechanism explaining the provenance of the electrons responsible for the reduction of silver is proposed.
Clarkson University, Center for Advanced Materials Processing, Potsdam, NY 13699, USA.
Ionel
I
Halaciuga
Sylas
S
Laplante
Dan V
DV
Goia
D000096:Acetone / Q000737:chemistry*; D011232:Chemical Precipitation; D055772:Green Chemistry Technology / Q000191:economics / Q000379:methods*; D006361:Heating; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry; D019163:Reducing Agents / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D018030:Silver Compounds / Q000737:chemistry
D010087:Oxides; D019163:Reducing Agents; D018030:Silver Compounds; D000096:Acetone; D012834:Silver; C040225:disilver oxide