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Photocatalytic TiO2 Micromotors for Removal of Microplastics and Suspended Matter
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Researchers developed titanium dioxide micromotor particles that can move autonomously using light energy and break down polystyrene microplastics through photocatalytic reactions. This active degradation approach could complement passive filtration methods for removing microplastics from contaminated water.
Environmental contamination is a major global challenge and the effects of contamination are found in most habitats. In recent times, the pollution by microplastics has come to the global attention and their removal displays an extraordinary challenge with no reasonable solutions presented so far. One of the new technologies holding many promises for environmental remediation on the microscale are self-propelled micromotors. They present several properties that are of academic and technical interest, such as the ability to overcome the diffusion limitation in catalytic processes and their phoretic interaction with their environment. Here, we present two novel strategies for the elimination of microplastics using photocatalytic Au@Ni@TiO2 -based micromotors. We show that individual catalytic particles as well as assembled chains show excellent collection and removal of suspended matter and microplastics from natural water samples.
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Photocatalytic TiO2 Micromotors for Removal of Microplastics and Suspended Matter
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Photocatalytic TiO 2 Micromotors for Removal of Microplastics and Suspended Matter
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Researchers developed self-propelled photocatalytic micro-motors shaped like an asymmetric Pac-Man that can collect and degrade microplastics in water using light energy. The asymmetric design allowed the motors to actively swim, gather microplastic particles through phoretic attraction, and then photocatalytically break them down. This self-powered collection and degradation system represents a promising new approach to removing microplastics from water bodies.
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Researchers developed a self-asymmetric Pac-Man-shaped TiO2 micromotor that combines self-propulsion, phoretic collection, and photocatalytic degradation to efficiently capture and break down microplastics in water.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.