Explanation:

• Plasmonic nanoparticles are particles whose electron density can couple with electromagnetic radiation of wavelengths that are far larger than the particle due to the nature of the dielectric-metal interface between the medium and the particles.
• It is a metal-like material with free electrons on the surface that oscillate collectively when hit by light.
• It will be used for removal of toxic organic compounds from water by harvesting solar light.
• The solar light will be utilized to increase the photocatalytic efficiency of nanomaterials to degrade pollutants as well as generate renewable Hydrogen.
• It can easily absorb toxic ions like arsenic and fluoride, which are often found in water in North East India and convert it to its not toxic forms when they are exposed to sunlight.