Catalytic ozonation by iron coated pumice for the degradation of natural organic matters

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dc.authoridAlver, Alper -- 0000-0003-2734-8544
dc.contributor.authorAlver, Alper
dc.contributor.authorKılıç, Ahmet
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-29T19:29:15Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-29T19:29:15Z
dc.date.issued2018
dc.departmentMühendislik Fakültesi
dc.description.abstractThe use of iron-coated pumice (ICP) in heterogeneous catalytic ozonation significantly enhanced the removal efficiency of natural organic matters (NOMs) in water, due to the synergistic effect of hybrid processes when compared to sole ozonation and adsorption. Multiple characterization analyses (BET, TEM, XRD, DLS, FT-IR, and pH(PZC)) were employed for a systematic investigation of the catalyst surface properties. This analysis indicated that the ICP crystal structure was alpha-FeOOH, the surface hydroxyl group of ICP was significantly increased after coating, the particle size of ICP was about 200-250 nm, the BET surface area of ICP was about 10.56 m(2) g(-1), the pH(PZC) value of ICP was about 7.13, and that enhancement by iron loading was observed in the FT-IR spectra. The contribution of surface adsorption, hydroxyl radicals, and sole ozonation to catalytic ozonation was determined as 21.29%, 66.22%, and 12.49%, respectively. The reaction kinetic analysis with tert-Butyl alcohol (TBA) was used as a radical scavenger, confirming that surface ferrous iron loading promoted the role of the hydroxyl radicals. The phosphate was used as an inorganic probe, and significantly inhibited the removal efficiency of catalytic NOM ozonation. This is an indication that the reactions which occur are more dominant in the solution phase.
dc.description.sponsorshipEnvironmental Engineering Department of Aksaray University; Scientific Research Projects Coordination Unit of Aksaray University [2015-050]
dc.description.sponsorshipWe would like to thank the Environmental Engineering Department of Aksaray University for funding this paper and support us. The authors thank Emine BASTURK for her technical assistance in the lab work. Thanks are due to a range of people who gave advice, offered comments or help in other ways during this paper. This work was supported by Scientific Research Projects Coordination Unit of Aksaray University. The project number is 2015-050.
dc.identifier.doi10.3390/catal8050219
dc.identifier.issn2073-4344
dc.identifier.issue5en_US
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.3390/catal8050219
dc.identifier.urihttps://hdl.handle.net/20.500.12451/6146
dc.identifier.volume8en_US
dc.identifier.wosWOS:000435191500048
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherMDPI
dc.relation.ispartofCATALYSTS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCatalytic Ozonation
dc.subjectIron Coated Pumice
dc.subjectSurface Properties
dc.subjectNatural Organic Matter
dc.subjectReaction Kinetics
dc.titleCatalytic ozonation by iron coated pumice for the degradation of natural organic matters
dc.typeArticle

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