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Elemental Bromine Production by TiO 2 Photocatalysis and/or Ozonation
Author(s) -
Parrino Francesco,
Camera Roda Giovanni,
Loddo Vittorio,
Palmisano Leonardo
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201603635
Subject(s) - bromine , photocatalysis , halogenation , bromide , chemistry , ozone , catalysis , inorganic chemistry , organic chemistry
Significant production of elemental bromine (Br 2 ) was observed for the first time when treating bromide containing solutions at acidic pH, with TiO 2 photocatalyst, ozone, or a combination thereof. Br 2 selectivities up to approximately 85 % were obtained and the corresponding bromine mass balance values satisfied. The process is general and may be applied at a laboratory scale for green bromination reactions, or industrially as a cheap, safe, and environmentally sustainable alternative to the currently applied bromine production methods.