Magical function of nano titanium dioxide

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Source:http://www.mhcocm.com Related link:What are the properties of magnesium

In 1972, Japanese scientist Akira Fujishima found that titanium dioxide irradiated by sunlight, the flute of water into two hydrogen atoms and one oxygen atom, or make some other substances such as organic matter. Under certain conditions, broken down into carbon dioxide and water and other small molecules. This is because the titanium dioxide by ultraviolet light in sunlight, the titanium atoms on the electron excitation, orbit changes, resulting in strong oxidation ability, so to some inorganic and organic matter decomposition. It was developed under the principle of photocatalytic technology using titanium dioxide as a catalyst to absorb light energy and materials are decomposed, so as to achieve sterilization, self-cleaning,neodymium fluoride, air purification,neodymium fluoride, odor and other purposes.

However, the general low activity of titanium dioxide, in order to break down other substances, may have to wait days or even months. 90 20th century,neodymium fluoride, people applied to the titanium dioxide nano-technology, the production of the titanium dioxide. We know that a nanometer is a billionth of a meter, equal to one millionth of the size of the tip. Titanium dioxide particle size means no more than 100 of titanium dioxide, titanium dioxide can be said to not point a small family. Precisely because it is small size, "arms and legs flexible", and other atoms and so easy to integrate, to participate in chemical reactions in the titanium dioxide than thousands of times to be lively, so nano-titanium dioxide greatly favored in each.

Now, let's look at how the nano-titanium dioxide their skills to. Let's look at the clothes do not wash. Hong Kong Polytechnic University researchers have developed a self-cleaning cloth. They use a special process to make titanium dioxide attached to the cloth strips. Sunlight in the titanium dioxide, the cause of electronic escape from. This part of the electronic and oxygen in the air the reaction of oxygen with a strong free radical oxidation, the dirt down into carbon dioxide and water molecules, thus reaching the purpose of self-cleaning. Titanium dioxide as a human and not loss, as long as the sun, the fabric will be able to play a self-cleaning function.