Blue light and carbon capture with MgO
Oct 1, 2009 — Before Jeffrey J. Urban began studies on the concentration, separation and sequestration of carbon, he was greeted with a big surprise. Prior to performing physical characterization, he did “the chemical step,” which, in this case, meant looking at the absorption emission spectra of magnesium oxide.
The surprise, he said, was the discovery that MgO (magnesium oxide) nanocrystals have bright blue photoluminescent properties (bulk MgO is a nonemissive, wide-bandgap insulator).
He obtained...