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催化学报  2014 

KineticsandefficiencydisplayedbysupportedandsuspendedTiO2catalystsappliedtothedisinfectionofEscherichiacoli

DOI: 10.1016/S1872-2067(14)60125-X, PP. 1571-1577

Keywords: Heterogeneousphotocatalysis,Slurriedcatalyst,Supportedcatalyst,Disinfectionkinetics,Quantumyield

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Abstract:

？TiO2-mediatedphotocatalysisiswidelyusedinavarietyofapplicationsandproductsintheenvironmentalandenergyfields,includingphotoelectrochemicalconversion,self-cleaningsurfaces,andespeciallywaterpurificationsystems.ThedimensionalityofthestructureofaTiO2materialcanaffectitsproperties,functions,andmorespecifically,itsphotocatalyticperformance.Inthiswork,thephotocatalyticinactivationofGram-negativeEscherichiacoliusingthreephotocatalysts,differingintheirstructureandothercharacteristics,wasstudiedinabatchreactorunderUVAlight.TheaimwastoestablishthedisinfectionefficiencyofsolidTiO2comparedwiththatofsuspendedcatalysts,widelyconsideredasreferencecasesforphotocatalyticwaterdisinfection.Thebacterialinactivationprofilesobtainedshowedthat:(1)thephotoinactivationwasexclusivelyrelatedtothequantityofphotonsretainedperunitoftreatedvolume,irrespectiveofthecharacteristicsofthephotocatalystandtheemittedlightfluxdensities;(2)acrossthewholeUVlightrangestudied,eachofthephotocatalyticsolidswasabletoachievemorethan2logbacterialinactivationwithlessthan2hUVirradiation;(3)noneoftheusedcatalystsachievedatotalbacterialdisinfectionduringthetreatmenttime.Foreachofthecatalyststhequantumyieldhasbeenassessedintermsofdisinfectionefficiency,the2Dmaterialshowedalmostthesameperformanceasthoseofsuspendedcatalysts.Thiscatalystispromisingforsupportedphotocatalysisapplications.

 References

[1]  Minero C, Vione D. Appl Catal B, 2006, 67: 257
[2]  Plantard G, Janin T, Goetz V, Brosillon S. Appl Catal B, 2012, 115- 116: 38
[3]  Berney M, Weilenmann H U, Ihssen J, Bassin C, Egli T. Appl Environ Microbiol, 2006, 72: 2586
[4]  Marugan J, Hufschmidt D, Lopez-Munoz M J, Selzer V, Bahnemann D. Appl Catal B, 2006, 62: 201
[5]  Elatmani K, Plantard G, Sacco D, Aitichou I, Goetz V. Mater Sci Semicon Proc, 2013, 16: 1117
[6]  Wang C Y, Rabani J, Bahnemann D W, Dohrmann J K. J Photochem Photobiol A, 2002, 148: 169
[7]  Gaya U I, Abdullah A H. J Photochem Photobiol C, 2008, 9: 1
[8]  Coleman H M, Marquis C P, Scott J A, Chin S S, Amal R. Chem Eng J, 2005, 113: 55
[9]  Munoz I, Rieradevall J, Torrades F, Peral J, Domenech X. Sol Energy, 2005, 79: 369
[10]  Janin T. Doctoral Thesis. University of Perpignan Via Domitia, France, 2011
[11]  Yang H W, Cheng H F. Sep Purif Technol, 2007, 56: 392
[12]  Lu J F, Zhang T, Ma J, Chen Z L. J Hazard Mater, 2009, 162: 140
[13]  Malato S, Blanco J, Campos A, Caceres J, Guillard C, Herrmann J M, Fernandez-Alba A R. Appl Catal B, 2003, 42: 349
[14]  Malato S, Blanco J, Fernandez-Alba A R, Agüera A. Chemosphere, 2000, 40: 403
[15]  Blanco-Gálvez J, Fernández-Ibá？ez P, Malato-Rodríguez S. J Sol Energ Eng, 2007, 129: 4
[16]  Gumy D, Morais C, Bowen P, Pulgarín C, Giraldo S, Hajdu R, Kiwi J. Appl Catal B, 2006, 63: 76
[17]  Malato S, Fernandez-Ibanez P, Maldonado M I, Blanco J, Gernjak W. Catal Today, 2009, 147: 1
[18]  Cassano A E, Alfano O M. Catal Today, 2000, 58: 167
[19]  Chong M N, Jin B, Zhu H Y, Chow C W K, Saint C. Chem Eng J, 2009, 150: 49
[20]  Ochuma I J, Fishwick R P, Wood J, Winterbottom J M. Appl Catal B, 2007, 73: 259
[21]  Chin S S, Chiang K, Fane A G. J Membr Sci, 2006, 275: 202
[22]  Correia F, Goetz V, Plantard G, Sacco D. J Sol Energy Eng, 2011, 133: 031002
[23]  Chick H. J Hygiene, 1908, 8: 92
[24]  Herrmann J M. Catal Today, 1999, 53: 115
[25]  Dalrymple O K, Stefanakos E, Trotz M A, Goswami D Y. Appl Catal B, 2010, 98: 27
[26]  Benabbou A K, Derriche Z, Felix C, Lejeune P, Guillard C. Appl Catal B, 2007, 76: 257
[27]  Cho M, Chung H, Choi W, Yoon J. Water Res, 2004, 38: 1069
[28]  Lydakis-Simantiris N, Riga D, Katsivela E, Mantzavinos D, Xekoukoulotakis N P. Desalination, 2010, 250: 351
[29]  Goslich R, Bahnemann D, Shumacher H W, Benz V, Mfiller M. In: Becker M, B？hmer M (Eds). Proceedings of the 8th International Symposium on Solar Thermal Concentrating Technologies. Heidelberg, Germany: C. F. Müller Verlag, 1997. 1337
[30]  Davydov L, Smirniotis P G, Pratsinis S E. Ind Eng Chem Res, 1999, 38: 1375
[31]  Peil N J, Hoffmann M R. Environ Sci Technol, 1995, 29: 2974
[32]  Plantard G, Correia F, Goetz V. J Photochem Photobiol A, 2011, 222: 111
[33]  Sun L Z, Bolton J R. J Phys Chem, 1996, 100: 4127

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