Impact of particle nanotopology on water transport through hydrophobic soils

Journal of Colloid and Interface Science
Vi Khanh TruongDavid E Mainwaring

Abstract

The impact of non- and poorly wetting soils has become increasingly important, due to its direct influence on the water-limited potential yield of rain-fed grain crops at a time of enhanced global competition for fresh water. This study investigates the physical and compositional mechanisms underlying the influence of soil organic matter (SOM) on the wetting processes of model systems. These model systems are directly related to two sandy wheat-producing soils that have contrasting hydrophobicities. Atomic force microscopy (AFM), contact angle and Raman micro-spectroscopy measurements on model planar and particulate SOM-containing surfaces demonstrated the role of the hierarchical surface structure on the wetting dynamics of packed particulate beds. It was found that a nanoscale surface topology is superimposed over the microscale roughness of the packed particles, and this controls the extent of water ingress into particulate packed beds of these particles. Using two of the dominant component organic species found in the SOM of the two soils used in this study, it was found that the specific interactions taking place between the SOM components, rather than their absolute quantities, dictated the formation of highly hydrophobic...Continue Reading

References

Feb 1, 1997·Journal of Colloid and Interface Science·A SieboldJ Schultz
Oct 30, 2004·Journal of Hazardous Materials·Jiunn-Fwu LeeShun-Ping Wang
Dec 25, 2007·Advances in Colloid and Interface Science·Santanu Paria
Jun 3, 2009·Journal of Colloid and Interface Science·Nate StevensRossen Sedev
Jan 20, 2012·Advances in Colloid and Interface Science·A J B Milne, A Amirfazli
Mar 13, 2015·Environmental Science & Technology·Lijun WangAndrew Putnis
Mar 17, 2015·Journal of Colloid and Interface Science·Martin WåhlanderAgne Swerin

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Citations

May 28, 2016·Advances in Colloid and Interface Science·Francisco Gallego-GómezCefe López
Aug 12, 2019·Journal of Colloid and Interface Science·Brenda L KessenichJames J De Yoreo

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