Chinese Academy of Sciences developed a new type of material to remove highly toxic heavy metal ions from water

The reporter recently learned from the Hefei Institute of Physical Science of the Chinese Academy of Sciences that experts from the institute's Institute of Intelligence have made new breakthroughs in the removal of heavy metal pollutants from the water environment. They have developed a single-crystal porous nanomaterial that can quickly and efficiently remove highly toxic heavy metal ions. Hexavalent chromium.

The results of this research have been published in the internationally renowned periodical “Hazardous Materials,” and the reviewer believes that “this is an interesting, innovative, and useful work.”

Hexavalent chromium is a common and highly toxic heavy metal contaminant. Skin contact may cause allergies and eczema. Inhalation can cause varying degrees of hoarseness and atrophy of nasal mucosa. Ingestion can cause vomiting, abdominal pain, and cancer. Hexavalent chromium may also cause hereditary genetic defects and endanger the environment.

According to experts from the Chinese Academy of Sciences, photocatalysis is an efficient and clean method for the treatment of many hexavalent chromium, which is a photocatalytic reduction of highly toxic hexavalent chromium to low toxicity and essential trivalent chromium in the human body. , can effectively reduce the harm of chromium ions.

Researchers at the Institute of Intelligent Science of the Chinese Academy of Sciences carried out systematic research on hexavalent chromium as an efficient photocatalytic material. They prepared a single crystal porous nanomaterial. Experiments have shown that porous structures create a large number of sites with high catalytic activity on the surface of nanosheets. When this nanomaterial is put into water, the catalytic reduction rate of hexavalent chromium can reach 100%, and the catalytic degradation rate of organic pollutants such as benzene and phenol can be greatly improved.

It is understood that this research work has been supported by the national major scientific research project "basic research on the removal of micro-pollutants in drinking water using nanotechnology", the "100 Talented Persons Program" of the Chinese Academy of Sciences for the introduction of outstanding overseas talents, and the National Natural Science Foundation of China.


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