Roma-based Nemesi & Partners have unveiled their project for the Palazzo Italia, the pavilion that will host Milan Expo next year. The company's plan calls for an innovative building that will generate its own electricity while purifying the outdoor air.

The external facade of the six-storey structure will feature over 900 panels made from a special type of air-cleaning cement. “In direct sunlight, the active principle contained in the material ‘captures’ certain pollutants present in the air and converts them into inert salts, helping to purify the atmosphere from smog,”…