Photocatalytic ozonation:Maximization of the reaction rate and control of undesired by-products

Francesco Parrino, Leonardo Palmisano, Vincenzo Augugliaro, Vittorio Loddo, Giovanni Camera-Roda, Giovanni Camera-Roda, Camera-Roda

Risultato della ricerca: Articlepeer review

29 Citazioni (Scopus)

Abstract

In theso-calledphotocatalyticozonation(PO)synergisticeffectsbetweenphotocatalysisandozonationenhance therateofoxidationoforganiccompounds,thereforethisintegratedprocessisverypromisingfor useinwatertreatment.Inthepresentwork,itisdemonstratedthattheimprovementthatcanbeobtained bytheintegratedprocessincomparisonwiththeuncoupledprocessesdependsontherelativeweight between photocatalysis and ozonation. In this respect, it has been found that a relatively low rate of photocatalysis (0.3 times the rate of ozonation)issufficienttogetthehighestsynergyandtomaximizethe performancesintheoxidationofformate,theadoptedmodelorganiccompound.Thebenefitsofthe couplingofphotocatalysistoozonationarenotlimitedtotheincreaseoftheoxidationrate,butinclude alsothecontroloftheozonationby-productofmainconcern(bromate).TheeffectofthepH,ofthe presenceofoxidizableorganiccompounds,ofthepresenceofnitrogenontheformationoronthereduction ofbromateareexperimentallystudiedanddiscussed.Theobtainedresultshaverelevanceforthe practicalapplicationsofPO,sinceonthesebasesitispossibletoidentifyproperoperatingconditions.
Lingua originaleEnglish
pagine (da-a)37-43
Numero di pagine7
RivistaAPPLIED CATALYSIS. B, ENVIRONMENTAL
Volume178
Stato di pubblicazionePublished - 2014

All Science Journal Classification (ASJC) codes

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  • ???subjectarea.asjc.2300.2300???
  • ???subjectarea.asjc.1500.1508???

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