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Interactions Between Silver Nanoparticles and Dissolved Natural Organic Matter Under Estuarine Conditions

机译：偏卤素条件下银纳米粒子与溶解天然有机物之间的相互作用

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Silver engineered nanoparticles (AgNPs) are under rapid development for incorporation into consumer goods. Although their domestic and industrial uses increased in many countries, little is known about their fate and toxic action in aquatic and terrestrial environments. AgNPs could interact with natural organic matter (NOM) from different origins and could be transported into the ocean by this organic matter. It is important to understand the interactions developed between AgNPs and dissolved NOM. The aim of this study was to characterise the stability of AgNP colloids and their interactions with natural NOM from different sources. In nanopure water, the addition of NOM to an aqueous AgNP dispersion did not induce a large variation in the size spectra of AgNPs. However, in estuarine waters, the presence of salt and NOM changed significantly these size distribution spectra. The size of AgNPs in contact with dissolved NOM in freshwater is exacerbated as the salinity rises.
机译：银工程纳米颗粒（AGNPS）正在快速发展，以纳入消费品。 虽然他们的国内和工业用途在许多国家的增加，但在水生和陆地环境中的命运和毒性行动很少。 AgNP可以与来自不同起源的天然有机物（NOM）相互作用，并且可以通过该有机物运输到海洋中。 了解AGNP和溶解NOM之间开发的相互作用非常重要。 本研究的目的是表征AgNP胶体的稳定性及其与来自不同来源的自然NOM的相互作用。 在纳米水中，添加NOM至A的AgNP分散体的添加没有诱导AgNP的尺寸光谱的大变化。 然而，在河滨水中，盐和NOM的存在显着改变了这些尺寸的分布光谱。 随着盐度的上升，与淡水中的溶解NOM接触的AgNP的大小加剧。

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