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dc.contributor.authorZaouri, Noor A.
dc.contributor.authorGutierrez, Leonardo
dc.contributor.authorBenedetti, Marc F.
dc.contributor.authorCroue, Jean Philippe
dc.date.accessioned2021-06-07T07:47:08Z
dc.date.available2021-06-07T07:47:08Z
dc.date.issued2021-05-20
dc.date.submitted2021-03-24
dc.identifier.citationZaouri, N., Gutierrez, L., Benedetti, M. F., & Croue, J.-P. (2021). Interactions between model organic compounds and metal oxides. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 625, 126858. doi:10.1016/j.colsurfa.2021.126858
dc.identifier.issn1873-4359
dc.identifier.issn0927-7757
dc.identifier.doi10.1016/j.colsurfa.2021.126858
dc.identifier.urihttp://hdl.handle.net/10754/669433
dc.description.abstractBecause of their mechanical, thermal, and chemical resistance, ceramic materials are suitable for challenging water treatments, where different metal oxides (MeO) have been tested as active layers. However, organic fouling is a major drawback impacting its performance. Organics adsorb onto the membrane surface and into their pores during long-term operation, resulting in irreversible fouling. This investigation focussed on the interfacial interactions between model organic acids and MeO to obtain a fundamental understanding of the adsorption phenomena. Batch adsorption experiments of a series of small molecular weight, oxygenated, aromatic organic acids were performed with Al2O3, TiO2, and ZrO2 particles, at pH 4.2 and 7.6. The adsorption of simple acids was described by the Langmuir model and exhibited a strong dependence on the relative abundance of carboxyl groups, aliphaticity/aromaticity, alkyl chain length, and presence of hydroxyl groups. The adsorption of model compounds was higher at low pH and decreased with increasing pH. The difference in Al2O3, TiO2, and ZrO2 surface characteristics, as evidenced by TEM, XRD, and BET, led to differences in the adsorption density. The results obtained with these well-defined organic structures will assist in better understanding the interfacial interactions between complex natural organic matter molecules and MeO of different characteristics.
dc.description.sponsorshipThe authors are grateful to KAUST for the support of the project, Manuel A. Roldan for analyzing the TEM images, and Tao Zhang for the scientific support in developing the HLPC methods.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0927775721007275
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Colloids and Surfaces A: Physicochemical and Engineering Aspects. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Colloids and Surfaces A: Physicochemical and Engineering Aspects, [625, , (2021-05-20)] DOI: 10.1016/j.colsurfa.2021.126858 . © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleInteractions between model organic compounds and metal oxides
dc.typeArticle
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.identifier.journalColloids and Surfaces A: Physicochemical and Engineering Aspects
dc.rights.embargodate2023-05-20
dc.eprint.versionPost-print
dc.contributor.institutionFacultad del Mar y Medio Ambiente, Universidad del Pacifico, Ecuador
dc.contributor.institutionUniversité de Poitiers, Institut de Chimie des Milieux et des Materiaux IC2MP UMR 7285 CNRS, France
dc.contributor.institutionUniversité de Paris, Institut de Physique du Globe de Paris, UMR 7154, CNRS, Paris, France
dc.identifier.volume625
dc.identifier.pages126858
kaust.personZaouri, Noor A
dc.date.accepted2021-05-14
dc.identifier.eid2-s2.0-85106924737


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