What Are Some Key Techniques in Nanotechnology for Pollution Remediation?
Several nanotechnology-based techniques are being developed and utilized:
1. Nanoscale Zero-Valent Iron (nZVI): nZVI particles are highly reactive and can reduce a wide range of contaminants, including heavy metals and chlorinated compounds, in soil and groundwater. 2. Photocatalysis: Titanium dioxide (TiO2) nanoparticles can harness sunlight to break down organic pollutants in water and air, converting them into less harmful substances. 3. Nanofiltration Membranes: These membranes, made from nanomaterials, are used in water treatment to remove contaminants at the molecular level, providing clean drinking water. 4. Carbon Nanotubes (CNTs): CNTs are highly effective in adsorbing organic pollutants and heavy metals from water due to their large surface area and strong adsorption capacity.
