Heterogeneous photocatalytic degradation of citric acid over TiO2. I: Mechanism of 3-oxoglutaric acid degradation

• Published in: Applied catalysis. B, Environmental Vol. 102; no. 3-4; pp. 454 - 463
• Main Authors: Meichtry, Jorge M., Quici, Natalia, Mailhot, Gilles, Litter, Marta I.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 22.02.2011; Elsevier
• Subjects: 3-Oxoglutaric acid; Acetoacetic acid; Catalysis; Chemistry; Citric acid; Exact sciences and technology; General and physical chemistry; Heterogeneous photocatalysis; Photochemistry; Physical chemistry of induced reactions (with radiations, particles and ultrasonics); Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; TiO2; Acetoacetic acid; Heterogeneous photocatalysis; 3-Oxoglutaric acid; Citric acid; TiO2; Binary compound; Experimental data; Photocatalysis; Transition element compounds; Photochemical reaction; Thermal reaction; Ketone; Mechanism; Degradation; Heterogeneous catalysis; Carboxylic acid; pH; Ti0; Kinetic parameter; Acetic acid; Titanium oxide; Acetone; Environmental protection

[Display omitted] ▶ UV/TiO2 3-oxoglutaric acid degradation is affected by thermal and photocatalytic pathways. ▶ Acetoacetic acid and acetone are produced mainly by thermal degradation. ▶ Formation of lactic, pyruvic, glyoxylic and acetic acid indicates the occurrence of photocatalytic pathways. ▶ P...