Researchers have developed 'smart rust,' iron oxide nanoparticles that clean water by attracting pollutants such as oil, nano- and microplastics, glyphosate, and even estrogen hormones. Pouring flecks of rust into water typically makes it dirtier. However, a groundbreaking development by research
In this illustration, a “smart rust” nanoparticle attracts and traps estrogen molecules, which are represented by the floating objects. Credit: Dr. Dustin Vivod and Prof. Dr. Dirk Zahn, Computer Chemistry Center , Friedrich-Alexander-Universität Erlangen-Nürnberg
Pouring flecks of rust into water typically makes it dirtier. However, a groundbreaking development by researchers has led to the creation of “smart rust,” a type of iron oxide nanoparticle that can purify water. This smart rust has the unique ability to attract various pollutants, such as oil, nano- and microplastics, and the herbicide glyphosate, depending on the particles’ coating.
“Our ‘smart rust’ is cheap, nontoxic, and recyclable,” says Marcus Halik, Ph.D., the project’s principal investigator. “And we have demonstrated its use for all kinds of contaminants, showing the potential for this technique to improve water treatment dramatically.”For many years, Halik’s research team has been investigating environmentally friendly ways to remove pollutants from water.
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