Effect of alkoxysilane chain length on the surface, stability, sorption and oil-water separation properties of novel superhydrophobic porous sorbent materials produced using innovative drainage technique in scCO2 atmosphere

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dc.authoridCengiz, Ugur/0000-0002-0400-3351
dc.authoridGURESIR, Suleyman Mert/0009-0001-7501-0604
dc.contributor.authorDuman, Osman
dc.contributor.authorCengiz, Candan
dc.contributor.authorDiker, Ceren Ozcan
dc.contributor.authorCengiz, Ugur
dc.contributor.authorGuresir, Sueleyman Mert
dc.contributor.authorTunc, Sibel
dc.date.accessioned2025-01-27T20:44:13Z
dc.date.available2025-01-27T20:44:13Z
dc.date.issued2024
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractAlkoxysilanes play an important role in the development of new superhydrophobic sorbent materials with high sorption capacity for the cleanup of oil spills from water. Here, three different alkoxysilanes with 1, 8 and 16 carbon (C) chains were used for the first time to elucidate the role of alkoxysilanes and to determine the relation between the functional alkyl chain length of alkoxysilane compound within the coating formulation and the surface, sorption and separation properties of novel superhydrophobic sorbent materials fabricated in scCO2 atmosphere. Both the modification of activated halloysite nanotube (HNT) with each methyltrietoxysilane (METES), octyltriethoxysilane (OTES) and hexadecyltrimethoxysilane (HDTMS) separately and the direct fabrication of melamine sponge (MS)-HNT/alkoxysilane hybrid composite sorbents (MS-METES, MS-OTES and MS-HDTMS) were achieved by innovative drainage technique in scCO2 atmosphere. The surface properties of superhydrophobic sorbents were examined using contact angle, SEM, EDS, FTIR, XPS and 29Si-MAS NMR techniques. Maximum sorption capacity of melamine sponge-based hybrid materials decreased from 122.2 g/g to 90.4 g/g as the chain length of alkoxysilane was increased from C1 to C16. Water contact angle, density and porosity of superhydrophobic MS-METES, MS-OTES and MS-HDTMS sorbents were determined to be 153.0 degrees, 13.56 mg/cm3 and 99.10 %; 159.4 degrees, 16.58 mg/cm3 and 98.90 %; and 165.4 degrees, 18.90 mg/cm3 and 98.75 %, respectively. All sorbents exhibited excellent thermal stability, good chemical stability, good robustness, and high mechanical durability. Experimental results revealed that the novel coating technique applied to porous MS have a significant potential for the direct fabrication of new superhydrophobic and superoleophilic sponge-based sorbent materials.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [221M385]; Scientific and Technological Research Council of Turkey (TUBITAK) BIDEB 2211-A National Ph.D. Scholarship Program
dc.description.sponsorshipThis work was financially supported by the Scientific and Technological Research Council of Turkey (TUBITAK Project Number: 221M385) . C. Ozcan Diker thanks the Scientific and Technological Research Council of Turkey (TUBITAK) BIDEB 2211-A National Ph.D. Scholarship Program for the financial support.
dc.identifier.doi10.1016/j.seppur.2024.127354
dc.identifier.issn1383-5866
dc.identifier.issn1873-3794
dc.identifier.scopus2-s2.0-85189533112
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.seppur.2024.127354
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24511
dc.identifier.volume345
dc.identifier.wosWOS:001226203600001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofSeparation and Purification Technology
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectAlkyl chain length effect
dc.subjectScCO2
dc.subjectActivated halloysite nanotube
dc.subjectSurface property and separation performance
dc.subjectSelective removal
dc.subjectSuperhydrophobic sorbent
dc.titleEffect of alkoxysilane chain length on the surface, stability, sorption and oil-water separation properties of novel superhydrophobic porous sorbent materials produced using innovative drainage technique in scCO2 atmosphere
dc.typeArticle

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