In a study published by the American Chemical Society, researchers developed poles used for electrochemical extraction to extract uranium efficiently from sea water. These electric electrodes are self -free and free of bonding materials, minerals -free, porridge and an aromatic frame.
Uranium is currently extracted from rocks, but the Nuclear Energy Agency estimates indicate that 4.5 billion tons of uranium floats in the oceans in the form of dissolved uranel ions, and this reserve is a thousand times more than what is on the ground, which provides a new opportunity to provide sustainable supplies of nuclear fuel, Especially since uranium resource resources limited on Earth represents a dangerous obstacle to developing the sustainable nuclear energy industry.
What is nuclear energy?
Nuclear energy is a clean and low -carbon energy source and an alternative to fossil fuels provides an important guarantee for green development. As for uranium, it is the main fuel for nuclear energy reactors.
Nuclear energy reactors are released naturally stored inside the atom and turned it into heat and electricity by dismantling the atom, a process known as fission. Uranium has become the preferred element in this process, as all its forms are unstable and radi, which makes it easy to fell.
Extracting uranium from sea water
The process of extracting uranium from the sea is a difficult process. Sea water has a high ionic power and complex intertwined ions that hinder the extraction of uranium.
In addition, sea water contains abundant amounts of vital deposits of microorganisms and other biological organisms, which limits the practical application of uranium extracts in the seas and oceans.
Also, the materials used to extract uranium do not contain sufficient surface area to effectively detain ions, so the poles developed by researchers in this study contain many corners and microscopic cracks that can be used in the electrochemical capture of uranium ions from sea water.
To create these electrodes, the researchers used a flexible, woven cloth from carbon fiber, and they covered this fabric with two specialized monomarat that was launched after that. Then they treated the fabric using hydroxeline hydroxeline to add amidoxim combinations to the polymers. The natural composition of the fabric created many small pockets until the oxygenated medium settles and easily detains uranel ions.
During the experiments, the researchers put the coated fabric as a cathode in the water filled with uranium, and added an impure from the graphite and operated a periodic stream between the electrodes. Over time, a light yellow, rich yellow, uranium, accumulated on the cathode fabric.
In this study, a high extraction capacity of uranium was achieved within 24 days of operation of 12.6 milligrams of uranium per gram of the coated active material used for extraction. The capacity of the well -known material was higher than most other uranium extraction materials that the team tested. The designated poles can effectively achieve electrochemical uranium extract through admission and electrical stimulation.
This method showed that the electrochemical method is three times faster than the physical and chemical admission method, and it also showed a good selective against competing ions.
This study gave an in -depth mechanical understanding and effective strategy to extract electrochemical uranium by electrodes from sea water.