According to data provided by the World Health Organization, one out of ten people currently living on Earth does not have access to clean drinking water. Despite the fact that everyone is well aware of the alarming situation, the situation is only getting worse every year. Global warming plays a significant role in all this.
Scientists are trying to deal with the problem, constantly inventing new methods of water purification, trying to make them simple and accessible to everyone. Thus, at the University of Washington, located in West Virginia, USA, scientists created a sponge made of cellulose and graphene oxide, which copes with water purification by separating it from harmful impurities and dirt.
Pulp, says Professor Srikant Singameneni, is very cheap in production, it can be made quickly, in tons and of any thickness. Graphene is also good in all respects, so we can make water-cleaning sponges of enormous size, which we hope will be useful in those countries where there is a shortage of drinking water, but there is enough sunlight. For example, in India.
Light biogubka consists of two layers. The first, consisting of graphene oxide, converts solar energy into heat, evaporating water, which then passes through the cellulose sponge. Dirt and other impurities at this time quietly settle to the bottom. The resulting water is calmly collected from the top of this leaf sponge.
The article is based on materials .
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