Industrial Chemistry and Water Treatment

Nano materials in Water Treatment

One of the most effective and well-developed environmental applications of nanotechnology has been in water remediation & treatment where different nanomaterial can help purify water through different mechanisms including adsorption of heavy metals & other pollutants, removal & inactivation of pathogens & transformation of toxic materials into less toxic compounds It highlights the uses of nanotechnology to purify water, including separation and reactive media for water filtration. Nano materials and nanoparticles to be used in water bioremediation and disinfection.

1. Silver: As a good antimicrobial agent, silver nanoparticles have been widely used for the disinfection of water.
2. Iron: various zero-valent metal nanoparticles, like Fe, Zn, Al, and Ni, in water pollution treatment have drawn wide research interest. Compared with Fe, Ni contains a less negative standard reduction potential, indicating a lower reducing ability.Therefore, zero-valent iron nanoparticles are the foremost extensively studied zero-valent metal nanoparticles.
3. TiO2: Owing to its high highly efficient and pragmatic photo catalysis, photo catalytic activity, reasonable price, photo stability, and chemical and biological stability TiO2 is the most exceptional photo catalyst yet. The large band gap energy of TiO2 requires ultraviolet (UV) illumination to induce charge separation within the particles.
4. ZNo:  ZnO NPs are environment-friendly as they’re compatible with organisms, which make them suitable for the treatment of water & wastewater. Besides, the photo catalytic capability of ZnO NPs is comparable to it of TiO2 NPs because their band gap energies are almost the identical.