What are the Mechanisms of Pollutant Degradation Using Nanomaterials?
Nanomaterials degrade pollutants through various mechanisms:
Photocatalysis: Nanoparticles like TiO2 generate reactive oxygen species (ROS) under UV light, which can break down complex organic molecules into simpler, non-toxic forms. Adsorption: Nanotubes and nanofibers have high surface areas that allow them to adsorb pollutants from water or air, followed by a catalytic reaction that degrades the adsorbed substances. Reductive Dechlorination: nZVI particles can donate electrons to chlorinated organic compounds, breaking the carbon-chlorine bonds and converting them into less harmful substances.
