The international researcher team from China, Saudi Arabia and the United States developed a membrane based on two -dimensional carbon material that can effectively relieve 99.7% of sea water salts. Research Results published Nature Water magazine.
Grafdin is similar to graphene, but it is a material with some unique structural properties. Unlike graphene with carbon atoms, the graphdine consists of triangular structures connected to hexagonal cages. This gives high mechanical strength and stability to the material and also creates narrow channels in the structure that plays an important role in filtering.
As shown by experiments, graphic membranes have a unique ability to cross water molecules when blocking the penetration of salts such as sodium, potassium, calcium and magnesium. Researchers explain that the size of the gaps in the Grafdin structure is fully overlapping the size of the water molecules that allow the water to pass freely, even the smallest metal ions cannot pass through so narrow channels.
During the experiments, scientists used membranes of various thicknesses starting from the 12 -layer graph. The results showed that even fine graphic membranes efficiently remove salts from sea water and reduce Nacl concentration by 99.7%. The membranes have shown their activities for more than 300 hours of work, which implies their durability and the possibility of applying salt in long -term processes.
According to scientists, the creation of new water salt purification methods is important to improve the wells of hot and arid regions such as Asia and Africa.
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Source: Gazeta
Barbara Dickson is a seasoned writer for “Social Bites”. She keeps readers informed on the latest news and trends, providing in-depth coverage and analysis on a variety of topics.