[A unique porous structure, created in a manufacturing process developed by Sony]

In order to remove large amount of silica accumulated between the cells of the husks,
the first step of Triporous manufacturing is to carbonize the rice husks under un inert atmosphere.
Next, the silica is “etched” (eliminated) to form large macropores, and then mesopores and micropores are developed in an activation process
(high-temperature process that uses water vapor).
With this manufacturing process invented by Sony, Triporous realizes its unique structure featuring micro, meso, and macropores.
Sony has acquired numerous and various patents relating to Triporous materials and applied technologies.

Quick Adsorption

ammonia gas, responsible for odors, adsorbed 6 times faster by Triporous compared to conventional activated carbon^*1

Conventional activated carbon has a low volume of macropores, so it is difficult for substances to pass through it,
and adsorption consequently requires considerable time.
On the other hand, the large macropores and mesopores in Triporous serve as pathways for substances,
and intraparticle diffusion is fast, enabling high-speed adsorption.
For example, one assessment of adsorption speed for ammonia, the gas responsible for odors,
found that Triporous adsorbs odors approximately six times faster than conventional activated carbon.
Adsorption is fast in the liquid phase too, so in a water purifier filter, Triporous has the potential to remove impurities very rapidly.

• *1 Activated carbon made from coconut shell.

Adsorbs Organic Substances of Various Sizes

Adsorbs over twice as much high-molecular weight
organic pigments and 3 to 8 times more proteins
than conventional activated carbon^*2.
Also adsorbs viruses and bacteria

Since Triporous is composed of a mix of 2-nm micropores, 2 to 50-nm mesopores, and approximately 1-$00B5m macropores,
it is capable of adsorbing large quantities of organic substances of various size.
For example, high-molecular weight organic compounds, which tend to cause a problem in industrial water treatment,
were adsorbed about twice in volume by Triporous compared to activated carbon.
It is also far more effective in treating proteins which are difficult to adsorb with activated carbon.
Triporous could achieve approximately three to eight times greater adsorption.
Moreover, Triporous eliminates over 99% of viruses and bacteria, so it has the potential to make a substantial contribution
to the water purification systems of emerging countries and to water recycling systems in arid regions.

• *2 Activated carbon made from coconut shell

Large Chemical Loading Capacity

extends life expectancy for more than twice of activated carbon when used in air purifiers and in industrial filters

The large volume of tiny cavities in the macropores and mesopores of Triporous give it a high water retention rate.
This means that it can be impregnated with more of a chemical agent or catalyst than conventional activated carbon.
Currently, industrial filters, household air purifiers, and similar devices are made using activated carbon impregnated with a particular chemical agent,
depending on the application.
Since Triporous contains a large volume of tiny cavities in its macropores and mesopores, and can therefore be impregnated with a greater amount of chemical agent than conventional activated carbon, Triporous filters can be made to last more than twice as long as activated carbon-based filters.