Abstract
This study investigated the dissolution kinetics of silver nanoparticles in presence of natural organic matter. Silver nanoparticles were synthesized using chemical reduction method. Particle size and surface charges of the synthesized silver nanoparticles were characterized using a zetasizer. ICP-MS combined with ultrafiltration technology was used to quantify the silver nanoparticle dissolution in presence of natural organic matters. The obtained results suggested that the dissolution rate of silver nanoparticles decreases with increasing natural organic matter content. Our study provides important guidance in elucidating the transport and fate of silver nanoparticles in natural water conditions.
Highlights
Silver nanoparticles (AgNP) were extensively studied because of its potential applications due to their antimicrobial properties [1,2,3,4,5,6,7,8]
The result of this study provided important information on the physicochemical property of AgNP, which is vitally important for their toxicological evaluation in aquatic systems
natural organic matter (NOM) solutions were prepared by dissolving humic acid purchased from Sigma Aldrich in DI water
Summary
Silver nanoparticles (AgNP) were extensively studied because of its potential applications due to their antimicrobial properties [1,2,3,4,5,6,7,8]. Other mechanisms suggested that ionic silver can be released and cause cell death by interacting with the sulfur containing proteins [3]. Reactive oxygen species, such as peroxides and oxygen ions, which were generated by light irritation, can hurt cells by causing oxidative stress [2, 3]. It is important to study the physicochemical properties of AgNP in natural waters. The result of this study provided important information on the physicochemical property of AgNP, which is vitally important for their toxicological evaluation in aquatic systems
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