A High-performance Doped Photocatalysts For Inactivation Of Total Coliforms In Superficial Waters Using Different Sources Of Radiation

dc.creatorClaro
dc.creatorEMT; Bidoia
dc.creatorED; de Moraes
dc.creatorPB
dc.date2016
dc.date2016-12-06T18:30:10Z
dc.date2016-12-06T18:30:10Z
dc.date.accessioned2018-03-29T02:02:44Z
dc.date.available2018-03-29T02:02:44Z
dc.identifier1095-8630
dc.identifierJournal Of Environmental Management. ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, n. 177, p. 264 - 270.
dc.identifier0301-4797
dc.identifierWOS:000376805300030
dc.identifier10.1016/j.jenvman.2016.04.033
dc.identifierhttp://www-sciencedirect-com.ez88.periodicos.capes.gov.br/science/article/pii/S0301479716302043
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/319974
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1310740
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionPhotocatalytic water treatment has a currently elevated electricity demand and maintenance costs, but the photocatalytic water treatment may also assist in overcoming the limitations and drawbacks of conventional water treatment processes. Among the Advanced Oxidation Processes, heterogeneous photocatalysis is one of the most widely and efficiently used processes to degrade and/or remove a wide range of polluting compounds. The goal of this work was to find out a highly efficient photocatalytic disinfection process in superficial water with different doped photocatalysts and using three sources of radiation: mercury vapor lamp, solar simulator and UV-A LED. Three doped photocatalysts were prepared, SiZnO, N-SiZnO and F-N-SiZnO. The inactivation efficiency of each synthesized photocatalysts was compared to a TiO2 P25 (Degussa (R)) 0.5 g L-1 control. Photolysis inactivation efficiency was 85% with UV-A LED, which is considered very high, demanding low electricity consumption in the process, whereas mercury vapor lamp and solar simulator yielded 19% and 13% inactivation efficiency, respectively. The best conditions were found with photocatalysts SiZnO, F N SiZnO and N SiZnO irradiated with UV-A LED, where efficiency exceeded 95% that matched inactivation of coliforms using the same irradiation and photocatalyst TiO2. All photocatalysts showed photocatalytic activity with all three radiation sources able to inactivate total coliforms from river water. The use of UV-A LED as the light source without photocatalyst is very promising, allowing the creation of cost-effective and highly efficient water treatment plants. (C) 2016 Elsevier Ltd. All rights reserved.
dc.description177
dc.description
dc.description264
dc.description270
dc.descriptionCAPES
dc.descriptionFAPESP
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description
dc.description
dc.description
dc.languageEnglish
dc.publisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
dc.publisherLONDON
dc.relationJournal of Environmental Management
dc.rightsfechado
dc.sourceWOS
dc.subjectSuperficial Water Treatment
dc.subjectHeterogeneous Photocatalysis
dc.subjectUv-a Led
dc.subjectDisinfection
dc.subjectSi-doped
dc.subjectN-doped
dc.titleA High-performance Doped Photocatalysts For Inactivation Of Total Coliforms In Superficial Waters Using Different Sources Of Radiation
dc.typeArtículos de revistas


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