Roles of Silver-Chloride Complexations in Sunlight-Driven Formation of Silver Nanoparticles.

ABSTRACT: In aerobic natural surface water, a silver ion (Ag⁺) exists in various Ag⁺-Cl^- complexes because of a strong affinity for a chloride ion (Cl^-); however, little information is available about the role of the Ag⁺-Cl^- complex in the formation of silver nanoparticles (AgNPs). This study demonstrates that soluble AgCl_x^(x-1)- species act as a precursor of AgNPs under simulated sunlight irradiation. The AgNP photoproduction increases with Cl^- levels up to 0.0025 M ([Ag⁺] = 5 × 10^-7 M) and decreases with continued Cl^- level increase (0.09 to 0.5 M). At [Cl^-] ≤ 0.0025 M (freshwater systems), photoproduction of AgNP correlates with the formation

SUBMITTER: Singh A 

PROVIDER: S-EPMC7859911 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature