New technology at MIT uses electricity, water and air to produce disinfectants
According to foreign media New Atlas, disinfectants are essential for fields such as medicine, but they are difficult to transport to remote villages in developing countries. However, MIT's new technology may only produce hydrogen peroxide that kills bacteria in situ only when electricity, water and air are used.
Hydrogen peroxide (aqueous solution commonly known as hydrogen peroxide) is widely used as an antibacterial agent in various industries. In its commonly used household formula, if it is a 3% solution, that is, the bottle contains 3% hydrogen peroxide and 97% water-this means that transporting it also involves transporting a large amount of water, which creates a heavy burden. In addition, the transportation process may become unsafe, requiring special transportation procedures.
Although hydrogen peroxide can be produced on-site in remote areas, the manufacturing process is usually carried out in large chemical plants that require a large amount of energy. In these plants, a stable supply of methane as a hydrogen source is required. With this limitation in mind, scientists at MIT have developed a new technology that can be integrated into a compact portable device.
Although the program does still require some electricity, it is reported that its electricity is small enough to be supplied by renewable energy sources (such as solar panels or wind turbines). This current is used to power the electrolysis cell, thereby decomposing conventional water into hydrogen and oxygen. The hydrogen atom reacts and bonds with a "mediator" molecule called anthraquinone, and then transfers it to a separate unit filled with oxygen-enriched water to obtain oxygen from the surrounding air.
The hydrogen atoms carried in pairs then combine with single oxygen molecules in the water to form hydrogen peroxide. Although the concentration of hydrogen oxide is still low, scientists are confident that it can be increased significantly. At the same time, when hydrogen disappears and combines with oxygen, anthraquinone will return to its original state, so that it can be used repeatedly.
"This is an amazing process, because you need to get a lot of water, air, and electricity from the local area, and then use it to make this important chemical substance, which can be used in the actual cleaning environment as well as clean hygiene and water quality" Professor Yogesh Surendranath of the Provincial Institute of Technology said.
A paper on this research was recently published in the journal "Joule".
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