| Silver Nanoparticles (AgNPs) are easily transferred in the environment, which modifies their properties and changes their transportation, and destiny. It is significant to understand these transformations when evaluating the potential environmental impact of AgNPs. To address this knowledge gap, the behavior of AgNPs that were coated with a commonly used capping agent---citrate was studied in the presence of different salts. The data revealed that when AgNPs were reacted with salts (NaCl, CaCl2, and KH2PO4) at different concentrations, the behavior of AgNPs was changed. Surface charge was a key factor in determining stability. In the presence of monovalent salts (NaCl and KH2PO4), AgNPs were more stable as compared with a divalent salt (CaCl2). The aggregation of AgNPs showed a strong dependence on the ionic strength regardless of the presence of monovalent or divalent salts. Therefore, the aggregation of AgNPs was in excellent agreement with the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory. |
