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Modelling of Diffusiophoretic Motion for Microplastic Filtration in Microchannel Flows.
Summary
Researchers developed microchannel designs that harness diffusiophoresis -- particle motion driven by electrolyte solute gradients in a cross-flow orientation -- to filter micrometer-sized particles such as microplastics from water. The modeling study demonstrates the potential of this mechanism to enable low-cost, decentralized water filtration without energy-intensive pressure-driven systems.
This research develops microchannel designs for water filtration by harnessing diffusiophoresis, which induces particle motion using an electrolyte solute gradient in a cross-flow orientation.Diffusiophoresis shows potential to provide a decentralized and low-cost water filtration technology to separate micrometer sized colloids such as microplastics from raw water.