Scientists used to clean polluted air buildings

Scientists explained that the objective is met by using a ceramic containing a compound that purifies the air.

In order to find a solution to help eliminate pollution of cities, Spanish scientists have managed to turn the buildings into "sponges"capable of absorbing the smog.

Scientists at the Institute of Chemical Technology, Polytechnic University of Valencia, explained that the goal is met by using a ceramic containing a compound that purifies the air, the BBC reported.

This ceramic is composed of a substance called Offnox that generates a chemical reaction with gases in the atmosphere. The idea is to make buildings and cities in trees in forests, Prof. Hermenegildo García explained.

He added that the Offnox is a semiconductor which converts solar light energy or photons, a chemical energy. Subsequently, the nitrogen oxides in the atmosphere, and harm the environment, are transformed into nitrate, a harmless substance.

You can add the substance to materials for the construction of buildings such as ceramic or acrylic paints and exterior, and when exposed to sunlight starts the chemical reaction and transforms the nitrogen dioxide.