초록 |
Gold nanoparticles(GNPs) have been prepared by citrate reduction method. Different type of bifuntional ligands including diamine and 1:3:3 solution (APTMS:CH3OH:0.15M HCl= 1:3:3mol%, sonicated for 2h) have been introduced and the effects have been studied. Relative contributions of experimental parameters (such as GNPs size, ligand types, ligand amount, and pH effect) have been investigated. The surface morphology and characteristics of GNPs after adding ligands were systematically analyzed by scanning electronic microscopy (SEM) and UV-Vis spectroscopy. |