Elemental Bromine Production by TiO2 Photocatalysis and/or Ozonation. Issue 35 (27th July 2016)

• Record Type: Journal Article
• Authors: Parrino, Francesco; Camera Roda, Giovanni; Loddo, Vittorio; Palmisano, Leonardo
• Is Part Of: Angewandte Chemie international edition. Volume 55:Issue 35(2016)
• Page Start: 10391
• Page End: 10395
• Publication Date: 2016-07-27
• Subjects: bromine -- nitric acid -- ozonation -- photocatalysis -- TiO2; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201603635
• Languages: English
• ISSNs: 1433-7851

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. Abstract : Brimming with bromine : Significant production of bromine was observed when acidic solutions of bromide were treated with a TiO2 photocatalyst, and/or ozone. Bromine selectivities up to approximately 85 % were obtained with a corresponding atomic mass balance. The general process may be applied at a laboratory scale, or industrially as a cheap, safe, and environmentally sustainable alternative to current production methods.