Elemental Bromine Production by TiO2 Photocatalysis and/or Ozonation. (27th July 2016)

• Record Type: Journal Article
• Authors: Parrino, Francesco; Camera Roda, Giovanni; Loddo, Vittorio; Palmisano, Leonardo
• Is Part Of: Angewandte Chemie. Volume 128:Number 35(2016)
• Page Start: 10547
• Page End: 10551
• Publication Date: 2016-07-27
• Subjects: Brom -- Ozonisierung -- Photokatalyse -- Salpetersäure -- TiO2; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201603635
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Significant production of elemental bromine (Br2 ) was observed for the first time when treating bromide containing solutions at acidic pH, with TiO2 photocatalyst, ozone, or a combination thereof. Br2 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.