ZnO/Zn/Amorphous Carbon Matrix Nanostructured Composite Powder: a New Photocatalyst for Dye

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dc.contributor.authorLanfredi, Silvana [UNESP]
dc.contributor.authorSilveira, Gisete S. [UNESP]
dc.contributor.authorPotensa, Bruno S. [UNESP]
dc.contributor.authorNobre, Marcos A. L. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-11-26T15:45:31Z
dc.date.available2018-11-26T15:45:31Z
dc.date.issued2016-01-01
dc.description.abstractBoth synthesis and photocatalytic potential of an innovative catalyst-powder type composite material based on the Zn or/and ZnO dispersed in a matrix of amorphous-carbon have been investigated. Zn/ZnO/amorphous-carbon nanostructured-matrix composite was prepared by partial pyrolysis method based on the Pechini method. The amorphous character of composite was characterized X-ray diffraction, while chemical bond investigated by infrared spectroscopy. The photocatalytic activity directed to the degradation of the phenol red dye of small fraction of commercial ZnO, Zn/C and Zn/ZnO/C composites were evaluated as a function of the degradation reaction of the phenol red dye, in the alkaline medium pH = 9. A mass concentration of 1: 10,000 was selected being considered 30 and 150 min of reaction A comparison between photocatalytic activity showed that the degradation rate of phenol red dye is more efficient at both ZnO/Zn/C and Zn/C amorphous composites when compared to the pristine ZnO. The efficiency obeys the following order C/Zn >= C/ZnO/Zn > commercial ZnO with conversion equal to 70% for C/Zn and C/ZnO/Zn, while for the ZnO is around 55%. The kinetic of degradation is discussed.en
dc.description.affiliationUniv Estadual Paulista UNESP, FCT, Lab Composites & Ceram Funct LaCCeF, CP 467, BR-19060900 Presidente Prudente, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista UNESP, FCT, Lab Composites & Ceram Funct LaCCeF, CP 467, BR-19060900 Presidente Prudente, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipUNESP/PROPe
dc.description.sponsorshipIdFAPESP: 2007/03510-9
dc.description.sponsorshipIdFAPESP: 2014/11189-0
dc.description.sponsorshipIdCNPq: 472773/2009-7
dc.format.extent1327-1332
dc.identifierhttp://dx.doi.org/10.1557/adv.2015.40
dc.identifier.citationMrs Advances. New York: Cambridge Univ Press, v. 1, n. 19, p. 1327-1332, 2016.
dc.identifier.doi10.1557/adv.2015.40
dc.identifier.issn2059-8521
dc.identifier.urihttp://hdl.handle.net/11449/159862
dc.identifier.wosWOS:000412530500002
dc.language.isoeng
dc.publisherCambridge Univ Press
dc.relation.ispartofMrs Advances
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleZnO/Zn/Amorphous Carbon Matrix Nanostructured Composite Powder: a New Photocatalyst for Dyeen
dc.typeArtigo
dcterms.licensehttp://journals.cambridge.org/action/displaySpecialPage?pageId=4676
dcterms.rightsHolderCambridge Univ Press

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