Scientists tested the membrane on a water sample containing two dyes-methylene blue and crystal violet. Due to their positive charge, the dyes were attracted to and adsorbed on the negatively charged membrane, leaving behind clean water. They then tried it on a sample containing a mix of water and oil.
They found that the membrane was able to remove around 98 per cent of oil from the water. The membrane’s properties remained unaffected by bending, creasing, twisting, rolling, rubbing with sand paper and treatment with water with extreme salinity. Further, it was found that it can be used for up to ten times.
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New membrane to help remove oil, dyes from industrial waste waterdeveloping the membrane, scientists first synthesised molecules of poly-dopamine. They then deposited them on the surface of cotton fibers and subsequently coated the combo with graphene oxide. <span>Scientists tested the membrane on a water sample containing two dyes-methylene blue and crystal violet. Due to their positive charge, the dyes were attracted to and adsorbed on the negatively charged membrane, leaving behind clean water. They then tried it on a sample containing a mix of water and oil. They found that the membrane was able to remove around 98 per cent of oil from the water. The membrane’s properties remained unaffected by bending, creasing, twisting, rolling, rubbing with sand paper and treatment with water with extreme salinity. Further, it was found that it can be used for up to ten times. “We are looking to scale up the process and also incorporate additional features in the material for simultaneous separation of organic pollutants, heavy metal ions and oil spills for c Summary
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