Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
597845 | Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2007 | 8 Pages |
Abstract
Gold nanoparticles and nanoplates were synthesized through a continuous method under UV irradiation in the presence of citric acid and poly(vinylpyrrolidone) (PVP) at room temperature. Morphologies of obtained gold nanoparticles were mainly determined by experimental parameters, i.e., the concentration of PVP and the flow rate of solution. The spherical gold nanoparticles were synthesized at a higher solution flow rate (6 mL/min). The particle sizes evidently decreased from more than 10 to 2 nm with increasing concentration of PVP in solution. When PVP was absent in solution, gold nanoplates with obtuse triangle, hexagon and round shapes were synthesized under a lower solution flow rate, such as 0.5 mL/min.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Shengchun Yang, Taiwei Zhang, Lu Zhang, Shixing Wang, Zhimao Yang, Bingjun Ding,