Chinese scientists have developed novel smart window panels that can adjust light intensity of an indoor environment and effectively capture and absorb fine suspended particulates in polluted air.
Xinhua said the new system had the potential to help clean filthy air that chokes people, even when they are indoors.
The mechanism behind these panels is a simple solution-based process in which nanowire-nylon material electrodes, which are flexible and transparent, can capture atmospheric aerosol particles including those with a diameter of less than 2.5 micrometers (PM2.5).
Engineers at the Hefei-based University of Science and Technology of China said the nanowire-nylon mesh could be a high-efficiency filter, removing PM2.5 by 99.65% and reducing the density of harmful, inhalable particulates from 248 micrograms per cubic meter to 32.9, a safe level, in less than a minute.
They also say that the Ag-nylon mesh, coated with thermochromic dye, can adjust the indoor light intensity and the electrodes can be used as an ideal intelligent thermochromic smart panel to display texts and graphics.
It requires only 100 yuan (US$15) and 20 minutes to install a 7.5-square-meter Ag-nylon mesh, which can be cleaned and reused by soaking it in ethanol for 20 minutes.