'Super sand' to help clean up dirty drinking water

[dipsydoodle]

Contaminated water can be cleaned much more effectively using a novel, cheap material, say researchers.

Dubbed "super sand", it could become a low-cost way to purify water in the developing world.

The technology involves coating grains of sand in an oxide of a widely available material called graphite - commonly used as lead in pencils.

The team describes the work in the American Chemical Society journal Applied Materials and Interfaces.

http://www.bbc.co.uk/news/business-13895077