Nanotech Splits in Water Desalination: A Molecular Look

The world is running out of clean water. Scientists are searching for better ways to turn salty water into fresh water. One popular method is forward osmosis (FO), which uses less energy and is cheaper. In this study, scientists used computer simulations to test a new kind of FO membrane made from tiny boron nitride splits. They found that the size of these splits and the temperature made a big difference in how well the membrane worked. When the splits were wider, more fresh water flowed through, but the salt ions weren't blocked as well.Higher temperatures also let more water through but didn't block salt ions as much. The type of salt in the draw solution (a special liquid that pulls water through the membrane) also mattered. Salts with bigger ions, like MgCl2, blocked salt ions better but let less water through. This study shows that tailoring the boron nitride slits and the draw solution can improve FO membranes for water desalination.