Nitrate ions released into the water bodies due to human activities can have adverse effects on aquatic and terrestrial ecosystems. Conventional adsorption materials that are used for treating water contamination are incapable of removing nitrate. To deal with this issue, researchers from Chiba University, Japan, produced new polyacrylonitrile-based carbon fibers that, when activated with sodium carbonate and heat-treated, can exhibit excellent nitrate adsorption properties.
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Source: Phys.org