Nanotechnologies for purification and remediation of water

Author(s): Bhupinder Singh Sekhon, Vikrant Saluja

The nano-enabled technologies for water purification include a variety of different types of membranes and filters based on carbon nanotubes, nanoporous ceramics, magnetic nanoparticles, nanosized zerovalent iron used for the removal of metals and organic compounds from water, and other nanomaterials. Nanosensors, such as those based on titanium oxide nanowires or palladium nanoparticles are used for analytical detection of contaminants in water samples. Acareful weighing up of the opportunities and risks of nanotechnology with respect to their effects on the environment and health is needed.

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