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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Influence of Organic Acids on the Surface Composition of Sea Spray Aerosol
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Influence of Organic Acids on the Surface Composition of Sea Spray Aerosol

机译:有机酸对海浪气雾表面组成的影响

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Recent studies on sea spray aerosol indicate an enrichment of Ca2+ in small particles, which are often thought to originate from the very surface of a water body when bubbles burst. One model to explain this observation is the formation of ion pairs between Ca2+(aq) and surface-active organic species. In this study, we have used X-ray photoelectron spectroscopy to probe aqueous salt solutions and artificial sea spray aerosol to study whether ion pairing in the liquid environment also affects the surface composition of dry aerosol. Carboxylic acids were added to the sample solutions to mimic some of the organic compounds present in natural seawater. Our results show that the formation of a core-shell structure governs the surface composition of the aerosol. The core-shell structure contrasts previous observations of the dry sea spray aerosol on substrates. As such, this may indicate that substrates can impact the morphology of the dried aerosol.
机译:最近关于海浪喷雾气溶胶的研究表明,在小颗粒中富集Ca2 +,通常认为当气泡爆裂时源自水体的表面。 解释该观察的一种模型是Ca2 +(aq)和表面活性有机物种之间的离子对的形成。 在这项研究中,我们使用X射线光电子谱对探针水溶液和人造海喷雾气溶胶研究是否在液体环境中离子配对也影响干气溶胶的表面组成。 向样品溶液中加入羧酸以模拟天然海水中存在的一些有机化合物。 我们的研究结果表明,核心壳结构的形成控制气溶胶的表面成分。 核心壳结构对比衬底上的干海喷雾气溶胶的前一种观察。 因此,这可能表明基材可以影响干燥气溶胶的形态。

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