Found a kind of material that can trap toxic emissions in the air

Not only can it attract NO ₂ , this material can also convert NO ₂ and store it for reuse.

Scientists have long been extremely concerned about climate warming due to the greenhouse effect caused by the emissions of vehicles and factories. Among these emissions, notably nitro dioxide NO ₂ , this reddish brown toxic gas has a characteristic strong smell and is the number one air pollutant.

However, an international team of researchers has synthesized a material that can attract NO ₂ , one of the NOx molecules, which is a key "factor" in creating rains. acid. Not only that, this material can also convert NO ₂ and store them for use.

This is a porous metal material with an organic metal frame (MOF - Metal Organic Framework) that accurately captures and traps NO ₂ in the atmosphere full of steam, sulfur dioxide (SO ₂ ) and carbon dioxide (CO2). ). This material is called MFM-300 (Al) , is reusable and relatively easy to produce and recycle many times without losing its original feature. After being trapped, NO ₂ will be reinforced or liquefied and stored somewhere while waiting for proper use for the ecological environment.

The structural secret of the MFM-300 (Al) is very simple. It is a hybrid material between metal atoms containing ions with organic molecules such as hydrogen, oxygen, nitro, carbon . acting as a binder for metal ions in a precise position and stability. And so the MFM-300 (Al) has the proper porosity to attract NO ₂ .

Another feature of the MFM-300 (Al) is that it only captures NO ₂ molecules and does not touch other molecules in the air. And also, due to the low cost of production and operation, it is also very attractive economically, even though it is currently only a laboratory result.

According to the researchers, similar results can be obtained for other greenhouse gases, especially CO _2, and that research for the treatment of these gases is beginning to be started. So in the near future, people are going to have new weapons to fight the air pollution.