TriporousTM, contributing for a clean world

A revolutionary new high-performance filtering material from Sony, recycled from waste biomass.

A revolutionary new filtering material for water and air

Sony’s TriporousTM is a unique and versatile filtering material designed to clean water and air, improving safety, hygiene and comfort in a wide range of environments worldwide. Through TriporousTM, Sony envisions a future where clean water and clean air can be accessible to all.
Winner of “Encouragement Award for 21st Century Inventions”, and “21st Century Contribution” from the Japan Institute of Invention and Innovation.

Image of Triporous logo
Giving new purpose to discarded waste
Image of Triporous is produced entirely from discarded rice husks
TriporousTM is produced entirely from discarded rice husks

TriporousTM is produced from 100% biomass. Sony’s technology reuses surplus biomass to make TriporousTM which may help to reduce environmental impact.

Annual disposal of rice husks by region

Worldwide, about 150M tons are discarded per year

[1] Asia (Bangladesh, Cambodia, China, India, Indonesia, Japan, Myanmar, Pakistan, Philippines, Thailand, Vietnam): 136Mt
[2] Africa (Egypt, Nigeria): 6.16Mt
[3] South America (Brazil): 4.74Mt
[4] North America (USA): 2.04Mt
[5] Europe (EU): 0.84Mt
[6] Oceania (Australia): 0.06Mt

What is TriporousTM ?
Faster adsorption, and larger particles

TriporousTM has pores of three different sizes, allowing it to capture larger organic substances, and to capture some organic substances far more quickly and efficiently than conventional activated carbon filters. Organic substances trapped by the larger pores include bacteria and viruses, large proteins like some allergens and enzymes, and a range of large organic molecules. 

[1] TriporousTM   [2] Activated carbon

Image of Faster adsorption, and larger particles
TriporousTM outperforms activated carbon

The unique microstructure of TriporousTM makes it effective for adsorbing gas and odour. It also offers superior performance in removing larger organic substances from liquid, such as the bacteriophage MS2, compared to the coconut-husk-based activated carbon adsorbent typically used in water purification.

[1] Contamination   [2] Time (mins)   [3] TriporousTM result   [4] Coconut-husk-based activated carbon

Image of Triporous outperforms activated carbon
The possibilities of TriporousTM

Imagine odor-free sports clothing; faster and more efficient water and air cleaners; and enhancements to products as diverse as food, cosmetics and electronics – remarkably, these are all possibilities with TriporousTM technology.

Improving water quality

TriporousTM filtering could be used to provide clean drinking water even in unsanitary environments. This would be particularly beneficial in developing countries.

Improving air quality

TriporousTM can clean the air by adsorbing pollutants like industrial vapour and gas. This may also help reduce exposure to some types of microscopic particulate matter (PM2.5) and photochemical smog.

Image of Dr. Seiichiro Tabata
Conserving the environment with rice husks

Dr. Seiichiro Tabata

Inventor of Triporous
Sony Corporation

In the process of doing basic research on battery materials, I worked on developing the new porous material TriporousTM. Made from waste rice husk biomass, it has three types of pores at different sizes (the “tri” in the name comes from the number three). This unique microstructure gives the material a variety of potential applications. For example, the ability of TriporousTM to remove virus particles means it might help to secure clean water in parts of the world not connected to the electricity grid. Research and development are still in progress. Through this new material that cleans water and air, I would like to contribute to making possible a more comfortable and sustainable life for the world’s people.

Image of Triporous

An Innovative New Material for Purifying Water and Air(English only)

Image of Helping to reduce our plant's footprint
Helping to reduce our plant's footprint
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Projectors for the next generation
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Innovating ways to deliver electricity for everyone
Licensing enquiries

Sony has begun to license out TriporousTM. Companies considering the use of TriporousTM in their own products and factories, or looking to collaborate in the TriporousTM business, please enquire here.