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Optimized water treatment by combining catalytic Fenton reaction using diamond supported gold and biological degradation

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Optimized water treatment by combining catalytic Fenton reaction using diamond supported gold and biological degradation

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dc.contributor.author Martín González, Roberto es_ES
dc.contributor.author Navalón Oltra, Sergio es_ES
dc.contributor.author Alvaro Rodríguez, Maria Mercedes es_ES
dc.contributor.author García Gómez, Hermenegildo es_ES
dc.date.accessioned 2015-06-25T07:10:35Z
dc.date.available 2015-06-25T07:10:35Z
dc.date.issued 2011-03-14
dc.identifier.issn 0926-3373
dc.identifier.uri http://hdl.handle.net/10251/52252
dc.description.abstract Recently it has been reported that gold nanoparticles supported on Fenton treated diamond nanoparticles (Au/DNP) is a highly efficient catalyst to promote the generation of hydroxyl radicals from H2O2 [S. Navalon, R. Martin, M. Alvaro, H. Garcia, Angew. Chem. Int. Ed. 49 (2010) 8403–8407]. In the present work we have optimized a series of experimental parameters including initial pH, reaction temperature, H2O2 concentration, phenol to gold mol ratio and oxygen pressure to achieve biodegradability of aqueous phenol solutions with the minimum H2O2 concentration and attain a complete lack of toxicity (determined by the Vibrio fischeri bioluminescence assay). The results presented show how to combine mild Fenton degradation of bioreluctant phenol with consecutive biological treatment in such a way that the amount of H2O2 is kept to the minimum value. It was determined that the best conditions are pH 4, 50 ◦C, H2O2 to phenol molar ratio 4 and 320 mg L−1 (1 wt% Au) catalyst under oxygen atmosphere. Au/DNP exhibits a remarkable stability under these conditions and can be used up to four times without observing any loose of catalytic activity as determined by the temporal profiles of phenol degradation and H2O2 decomposition. es_ES
dc.description.sponsorship Financial support by the Spanish DGI (CTQ-2009-11587) is gratefully acknowledged. SN thanks to the Technical University of Valencia for a postgraduate research contract (Cantera Programme). en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation Spanish DGI [CTQ-2009-11587]; Technical University of Valencia es_ES
dc.relation.ispartof Applied Catalysis B: Environmental es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Gold nanoparticles supported on diamond nanoparticles es_ES
dc.subject Heterogeneous Fenton reaction es_ES
dc.subject Waste water biodegradability es_ES
dc.subject Vibrio fischeri toxicity es_ES
dc.subject Phenol degradation es_ES
dc.subject.classification QUIMICA ORGANICA es_ES
dc.title Optimized water treatment by combining catalytic Fenton reaction using diamond supported gold and biological degradation es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.apcatb.2011.01.035
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Química - Departament de Química es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química es_ES
dc.description.bibliographicCitation Martín González, R.; Navalón Oltra, S.; Alvaro Rodríguez, MM.; García Gómez, H. (2011). Optimized water treatment by combining catalytic Fenton reaction using diamond supported gold and biological degradation. Applied Catalysis B: Environmental. 103(1-2):246-252. doi:10.1016/j.apcatb.2011.01.035 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.apcatb.2011.01.035 es_ES
dc.description.upvformatpinicio 246 es_ES
dc.description.upvformatpfin 252 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 103 es_ES
dc.description.issue 1-2 es_ES
dc.relation.senia 41411


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