New Way to Clean Water and Air For the first time in Hong Kong, nanotechnology is not just a buzzword or a promise, but a reality. Researchers at the University have successfully developed state-of-the-art photocatalytic oxidation technology with the support of the Innovation and Technology Fund, and transferred the new invention to industry. NanoPCOTM technology has been commercialized and licensed to EnvironmentalCare Ltd., a company selling environmental protection products for use in high-end water treatment and air purification systems. The first application of this new technology, developed by Prof. Jimmy Yu Chai-mei of the Department of Chemistry, leads to a very safe and attractive water treatment system which has been proven to be more effective than conventional UV irradiation. It can be applied to the treatment of drinking water, industrial or agricultural waste water, and sea water. Currently water treatment systems employing NanoPCOTM technology have been installed in many local seafood restaurants. The second licence introduces a new approach for cleaning up air which overcomes the poor solar efficiency of traditional photocatalysts, making commercialization possible. This air purification system can be installed at hospitals, offices, schools, restaurants, and homes.

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