The bio-sponge from cellulose and graphene for water purification

According to data provided by the world health organization, one in ten people living currently on Earth, do not have access to clean drinking water. Despite the fact that all are well aware of the alarming situation, the situation is only getting worse every year. Not the last role in this is played by global warming.





Scientists are trying to deal with the problem, constantly inventing new methods of purification of water, trying to make them simple and accessible to everyone. So, at the University of Washington, located in the state of West Virginia, United States, scientists have created a sponge of cellulose and graphene oxide, which copes with the treatment of water by separating from impurities and dirt.

Cellulose, said Professor Srikanth Singareni, very cheap to produce, it can be done quickly, and tons of whatever thickness. Graphene is also good in all respects, so we can do a very large water purification sponge, which I hope will be useful in those countries where there is a shortage of drinking water, but enough sunlight. For example, in India.



 

Easy bio-sponge consists of two layers. The first, consisting of graphene oxide, solar energy converts into heat, vaporizing the water that then passes through the cellulose sponge layer. Dirt and also other impurities at this time quietly settle to the bottom. The resulting water safely going from the top of this sheet of sponge. published

 

Source: hi-news.ru/technology/biogubka-iz-cellyulozy-i-grafena-pomozhet-s-ochishheniem-vody.html