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An innovative ultrasound, Fe(2+) and TiO(2) photoassisted process for bisphenol A mineralization.
Water Res. 2010 Apr; 44(7):2245-52.WR

Abstract

This paper explores the degradation of a model pollutant, bisphenol A, by an advanced oxidation process that combines sonolysis, Fe(2+), and TiO(2) in a photoassisted process. Experiments were done under saturated oxygen conditions. The effect of different Fe(2+) (0.56 and 5.6 mg/L) and TiO(2) (10 and 50 mg/L) concentrations was investigated on both the elimination and mineralization of the pollutant. A pronounced synergistic effect that led to the complete and rapid elimination of dissolved organic carbon (DOC) was observed even at low catalyst loadings. In this system, almost a complete removal of DOC (93%) was observed after 4 h using 10 and 5.6 mg/L of TiO(2) and Fe(2+), respectively, whereas at the same time, only 5, 6, and 22% of DOC was removed by an individual process alone (TiO(2) photocatalysis, ultrasound, and photo-Fenton, respectively). In this system, ultrasound has the principal role of eliminating the initial substrate and providing hydrogen peroxide for the photocatalytic systems, while photo-Fenton and TiO(2) photocatalysis are mainly responsible for the transformation of the intermediates in CO(2) and H(2)O. The role of H(2)O(2) generated from the sonochemical process is also discussed.

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Authors+Show Affiliations

Torres-Palma RA
Grupo de Electroquímica, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, A. A. 1226, Medellín, Colombia.
Nieto JI
No affiliation info available
Combet E
No affiliation info available
Pétrier C
No affiliation info available
Pulgarin C
No affiliation info available

MeSH

Benzhydryl CompoundsCatalysisFerrous CompoundsHydrogen PeroxideIronOxidation-ReductionPhenolsPhotochemical ProcessesTitaniumUltrasonicsWaste Disposal, FluidWater Pollutants, Chemical

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20106498

Citation

Torres-Palma, Ricardo A., et al. "An Innovative Ultrasound, Fe(2+) and TiO(2) Photoassisted Process for Bisphenol a Mineralization." Water Research, vol. 44, no. 7, 2010, pp. 2245-52.
Torres-Palma RA, Nieto JI, Combet E, et al. An innovative ultrasound, Fe(2+) and TiO(2) photoassisted process for bisphenol A mineralization. Water Res. 2010;44(7):2245-52.
Torres-Palma, R. A., Nieto, J. I., Combet, E., Pétrier, C., & Pulgarin, C. (2010). An innovative ultrasound, Fe(2+) and TiO(2) photoassisted process for bisphenol A mineralization. Water Research, 44(7), 2245-52. https://doi.org/10.1016/j.watres.2009.12.050
Torres-Palma RA, et al. An Innovative Ultrasound, Fe(2+) and TiO(2) Photoassisted Process for Bisphenol a Mineralization. Water Res. 2010;44(7):2245-52. PubMed PMID: 20106498.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - An innovative ultrasound, Fe(2+) and TiO(2) photoassisted process for bisphenol A mineralization. AU - Torres-Palma,Ricardo A, AU - Nieto,Jessica I, AU - Combet,Evelyne, AU - Pétrier,Christian, AU - Pulgarin,Cesar, Y1 - 2010/01/07/ PY - 2009/10/09/received PY - 2009/12/24/revised PY - 2009/12/31/accepted PY - 2010/1/29/entrez PY - 2010/1/29/pubmed PY - 2010/8/11/medline SP - 2245 EP - 52 JF - Water research JO - Water Res VL - 44 IS - 7 N2 - This paper explores the degradation of a model pollutant, bisphenol A, by an advanced oxidation process that combines sonolysis, Fe(2+), and TiO(2) in a photoassisted process. Experiments were done under saturated oxygen conditions. The effect of different Fe(2+) (0.56 and 5.6 mg/L) and TiO(2) (10 and 50 mg/L) concentrations was investigated on both the elimination and mineralization of the pollutant. A pronounced synergistic effect that led to the complete and rapid elimination of dissolved organic carbon (DOC) was observed even at low catalyst loadings. In this system, almost a complete removal of DOC (93%) was observed after 4 h using 10 and 5.6 mg/L of TiO(2) and Fe(2+), respectively, whereas at the same time, only 5, 6, and 22% of DOC was removed by an individual process alone (TiO(2) photocatalysis, ultrasound, and photo-Fenton, respectively). In this system, ultrasound has the principal role of eliminating the initial substrate and providing hydrogen peroxide for the photocatalytic systems, while photo-Fenton and TiO(2) photocatalysis are mainly responsible for the transformation of the intermediates in CO(2) and H(2)O. The role of H(2)O(2) generated from the sonochemical process is also discussed. SN - 1879-2448 UR - https://www.unboundmedicine.com/medline/citation/20106498/An_innovative_ultrasound_Fe_2+__and_TiO_2__photoassisted_process_for_bisphenol_A_mineralization_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0043-1354(10)00009-6 DB - PRIME DP - Unbound Medicine ER -