On July 4th, the Hefei Institute of Material Science of the Chinese Academy of Sciences released a message that experts from the Institute of Technical Biology and Agricultural Engineering have made important progress in the basic research of hexavalent chromium pollution control, which can realize the magnetic recovery of heavy metals in water bodies and soils. Has a wide range of application prospects.
The project was completed by Wu Zhengyan, a researcher at the Institute of Technology and Biology, Hefei Institute of Material Science, Chinese Academy of Sciences. The results have been published by the core journal of the American Chemical Society, Langmuir, a Nobel laureate and a famous American physics. Named after the chemist Irving Langmuir, it is a famous publication in the surface science community.
It is understood that hexavalent chromium is one of the most typical heavy metal pollutants in soil and water, and can cause a series of diseases. However, due to the difficulty of separation and recovery, there is still no effective means for the treatment of hexavalent chromium pollution in soil. It is urgent to develop a method for efficiently removing hexavalent chromium from soil.
Wu Zhengyan introduced that the research group used graphene oxide and triiron tetroxide to prepare a magnetic composite nanomaterial, which not only can efficiently adsorb hexavalent chromium, reduce it to trivalent chromium, but also realize it in water and soil. Magnetic recycling.
“Previously, the repair technology using natural materials such as clay and biochar can capture heavy metals, but it cannot be removed, and the magnetic recovery function of this study is the biggest highlight.†Wu Zhengyan said that the material is environmentally friendly and stable. The preparation method is simple and has high application value.
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