Optimization of the pentachlorophenol adsorption by organo-clays based on response surface methodology

Simple item page
dc.contributor.authorEl Mahmoudi, Soufiane
dc.contributor.authorElmchaouri, Abdellah
dc.contributor.authorEl Kaimech, Assya
dc.contributor.authorGil Bravo, Antonio
dc.contributor.departmentZientziakeu
dc.contributor.departmentInstitute for Advanced Materials and Mathematics - INAMAT2en
dc.contributor.departmentCienciases_ES
dc.date.accessioned2022-11-03T12:56:44Z
dc.date.available2022-11-03T12:56:44Z
dc.date.issued2022
dc.date.updated2022-11-03T09:06:58Z
dc.description.abstractThe aim of this study is to optimize the adsorption of pentachlorophenol (PCP) using an organo-clay under the response surface methodology. The adsorbent was selected from a montmorillonite exchanged by various cations, such as Fe3+, Al3+, Zn2+, Mg2+, Na+ , and modified by bromide cetyltrimethylammonium (CTAB) as surfactant. The obtained organo-montmorillonite was characterized using several techniques, such as Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and nitrogen adsorption, performed at −196 ◦C. The results showed an increase in basal space from 1.65 to 1.88 nm and a decrease in the specific surface and pore volume, with an increase in pore diameter, including the presence of characteristic bands of -CH2 - and -CH3 - groups at 2926 and 2854 cm−1 in the FTIR spectrum after the modification. The optimization of PCP removal by clay adsorbents is achieved using the response surface methodology (RSM) with a four-factor central composite model, including pH of solution, mass of adsorbent, contact time, and initial concentration. The results proved the validity of the regression model, wherein the adsorption capacity reaches its maximum value of 38 mg/g at a lower adsorbent mass of 20 mg, pH of 6, contact time (tc) of 5 h, and initial concentration of 8 mg/L.en
dc.description.sponsorshipS.E.M. thanks the Universidad Pública de Navarra for a doctoral grant. A.G. also thanks Banco Santander for funding through the Research Intensification Program.en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationEl Mahmoudi, S., Elmchaouri, A., El kaimech, A., & Gil, A. (2022). Optimization of the pentachlorophenol adsorption by organo-clays based on response surface methodology. Materials, 15(20), 7169. https://doi.org/10.3390/ma15207169en
dc.identifier.doi10.3390/ma15207169
dc.identifier.issn1996-1944
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/44240
dc.language.isoengen
dc.publisherMDPIen
dc.relation.ispartofMaterials 2022, 15, 7169es
dc.relation.publisherversionhttps://doi.org/10.3390/ma15207169
dc.rights© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) licenseen
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectAdsorptionen
dc.subjectMontmorilloniteen
dc.subjectOrgano-clayen
dc.subjectPentachlorophenolen
dc.subjectResponse surface methodologyen
dc.titleOptimization of the pentachlorophenol adsorption by organo-clays based on response surface methodologyen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
relation.isAuthorOfPublicationcd12e590-cb42-47d5-a642-f60eeee624ec
relation.isAuthorOfPublication.latestForDiscoverycd12e590-cb42-47d5-a642-f60eeee624ec

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
ElMahmoudi_OptimizationPentachlorophenol_1667466056011_42015.pdf
Size:
1.15 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.78 KB
Format:
Item-specific license agreed to upon submission
Description:
Download

Collections

Artículos de revista DCIE - ZIES Aldizkari artikuluak
Artículos de revista - Aldizkari artikuluak
Artículos de revista INAMAT2 - INAMAT2 aldizkari artikuluak