Department of Chemistry, University of Toronto, 80 St., George St., Toronto, Ontario, M5S 3H6, Canada.
Department of Physical and Environmental Sciences, University of Toronto, Scarborough 1265 Military Trail, Toronto, Ontario, M1C 1A4, Canada.
Sci Rep. 2019 Jul 31;9(1):11089. doi: 10.1038/s41598-019-47590-x.
Indoor surfaces provide a plentiful and varied substrate on which multiphase reactions can occur which can be important to the chemical makeup of the indoor environment. Here, we attempt to characterise real indoor surface films via water uptake behaviour and ionic composition. We show that water uptake by indoor films is different than that observed outdoors, and can vary according to room use, building characteristics, and season. Similarly, preliminary investigation into the ionic composition of the films showed that they varied according to the room in which they were collected. This study highlights the importance of different types of soiling to multiphase chemistry, especially those reactions controlled by relative humidity or adsorbed water.
室内表面提供了丰富多样的底物，多相反应可以在此发生，这对室内环境的化学组成很重要。在这里，我们试图通过水吸收行为和离子组成来描述真实的室内表面膜。我们表明，室内薄膜的水吸收与室外观察到的不同，并且可以根据房间用途、建筑特点和季节而变化。同样，对薄膜离子组成的初步研究表明，它们根据收集薄膜的房间而变化。这项研究强调了不同类型的污垢对多相化学的重要性，特别是那些受相对湿度或吸附水控制的反应。
