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Explanation:
The removal of carbon particles from air involves the principle of electrophoresis. Carbon particles get precipitated by losing their charge and, thus, the air which finally comes out is free from them.
Removal of carbon particles from air involves the principle of Electrophoresis. Electrophoresis is a process in which charged particles move under the influence of an electric field. These particles are moved according to their charge and mass.
For example, when you rub your hand on velvet fabric, you can observe that all dust particles fall off due to electrostatic force between the dust particle and the fabric.
This is because all the dust particles are negatively charged while velvet fabric is positively charged.
The adsorption process involves applying a positive charge to the carbon nanoparticles in order to pull them toward an electrode.
A negatively charged counter electrode helps by pulling back on the carbon particles, moving them against their own electric field, and forcing them out of the filter.
The process is repeated thousands of times, with the carbon particles getting smaller and smaller as they pass through more filters. The clean air that comes through is then ready to be inhaled by people or used in industrial processes.