The breakthrough has provided a new means to control heavy metal contamination and recycling of waste cartons.
Incidents of heavy metal contamination of water have occurred frequently in China in recent years, and hexavalent chromium, a chemical compound of metal chromium and major cause of heavy metal pollution, can lead to significant risks to human health.
Researchers used high temperatures and pressure to create the nano material from waste cartons. The material can be coated with nano-scale iron which can effectively remove hexavalent chromium from water, control the migration of the compound in water sources, and prevent it from being absorbed by plants.
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