In tests, it killed 99.9999 percent of the bacteria in contaminated water.
Materials scientist Guoxiu Wang of the University of Technology Sydney and colleagues created ultrathin sheets of graphitic carbon nitride and added chemical groups like acids and ketones that lure electrons toward the sheets’ edges. There, the electrons jump onto oxygen atoms in water to form such microbe-dissolving oxygen chemicals as hydrogen peroxide.
Our motive was to develop an efficient way to use sunlight to produce water for undeveloped or remote regions without a central supply of clean water,
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