Show simple item record

dc.contributor.authorTopuz, F.en_US
dc.contributor.authorUyar, T.en_US
dc.date.accessioned2018-04-12T11:11:31Z
dc.date.available2018-04-12T11:11:31Z
dc.date.issued2017en_US
dc.identifier.issn0021-9797
dc.identifier.urihttp://hdl.handle.net/11693/37369
dc.description.abstractPolycyclic aromatic hydrocarbons (PAHs) are the byproducts of the incomplete combustion of carbon-based fuels, and have high affinity towards DNA strands, ultimately exerting their carcinogenic effects. They are ubiquitous environmental contaminants, and can accumulate on tissues due to their lipophilic nature. In this article, we describe a novel concept for PAH removal from aqueous solutions using cyclodextrin-functionalized mesostructured silica nanoparticles (CDMSNs) and pristine mesostructured silica nanoparticles (MSNs). The adsorption applications of MSNs are greatly restricted due to the absence of surface functional groups on such particles. In this regard, cyclodextrins can serve as ideal functional molecules with their toroidal, cone-type structure, capable of inclusion-complex formation with many hydrophobic molecules, including genotoxic PAHs. The CDMSNs were synthesized by the surfactant-templated, NaOH-catalyzed condensation reactions of tetraethyl orthosilicate (TEOS) in the presence of two different types of cyclodextrin (i.e. hydroxypropyl-β-cyclodextrin (HP-β-CD) and native β-cyclodextrin (β-CD)). The physical incorporation of CD moieties was supported by XPS, FT-IR, NMR, TGA and solid-state 13C NMR. The CDMSNs were treated with aqueous solutions of five different PAHs (e.g. pyrene, anthracene, phenanthrene, fluorene and fluoranthene). The functionalization of MSNs with cyclodextrin moieties significantly boosted the sorption capacity (q) of the MSNs up to ∼2-fold, and the q ranged between 0.3 and 1.65 mg per gram CDMSNs, of which the performance was comparable to that of the activated carbon.en_US
dc.language.isoEnglishen_US
dc.source.titleJournal of Colloid and Interface Scienceen_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.jcis.2017.03.015en_US
dc.subjectCyclodextrinen_US
dc.subjectMesostructured silica nanoparticles (MSN)en_US
dc.subjectPolycyclic aromatic hydrocarbons (PAH)en_US
dc.subjectWater treatmenten_US
dc.subjectActivated carbonen_US
dc.subjectActivated carbon treatmenten_US
dc.subjectAdsorptionen_US
dc.subjectAnthraceneen_US
dc.subjectAromatic compoundsen_US
dc.subjectAromatic hydrocarbonsen_US
dc.subjectAromatizationen_US
dc.subjectByproductsen_US
dc.subjectCondensation reactionsen_US
dc.subjectCyclodextrinsen_US
dc.subjectHydrocarbonsen_US
dc.subjectMoleculesen_US
dc.subjectNanoparticlesen_US
dc.subjectSilicaen_US
dc.subjectSolutionsen_US
dc.subjectWater treatmenten_US
dc.subjectEnvironmental contaminanten_US
dc.subjectHydrophobic moleculesen_US
dc.subjectIncomplete combustionen_US
dc.subjectMesostructured silicaen_US
dc.subjectPolycyclic aromatic hydrocarbon (PAH)en_US
dc.subjectPolycyclic aromatic hydrocarbons (PAHS)en_US
dc.subjectSurface functional groupsen_US
dc.subjectTetraethyl orthosilicatesen_US
dc.subjectPolycyclic aromatic hydrocarbonsen_US
dc.subjectAnthraceneen_US
dc.subjectBeta cyclodextrinen_US
dc.subjectCyclodextrinen_US
dc.subjectFluorantheneen_US
dc.subjectFluoreneen_US
dc.subjectPhenanthreneen_US
dc.subjectPolycyclic aromatic hydrocarbonen_US
dc.subjectPyreneen_US
dc.subjectSilica nanoparticleen_US
dc.subjectTetraethoxysilaneen_US
dc.subjectCyclodextrinen_US
dc.subjectMetal nanoparticleen_US
dc.subjectPolycyclic aromatic hydrocarbonen_US
dc.subjectSilicon dioxideen_US
dc.subjectAdsorptionen_US
dc.subjectAqueous solutionen_US
dc.subjectArticleen_US
dc.subjectCarbon nuclear magnetic resonanceen_US
dc.subjectChemical structureen_US
dc.subjectComplex formationen_US
dc.subjectHydrophobicityen_US
dc.subjectInfrared spectroscopyen_US
dc.subjectNuclear magnetic resonanceen_US
dc.subjectPolymerizationen_US
dc.subjectPriority journalen_US
dc.subjectThermogravimetryen_US
dc.subjectWater treatmenten_US
dc.subjectChemistryen_US
dc.subjectIsolation and purificationen_US
dc.subjectAdsorptionen_US
dc.subjectCyclodextrinsen_US
dc.subjectMetal nanoparticlesen_US
dc.subjectPolycyclic aromatic hydrocarbonsen_US
dc.subjectSilicon dioxideen_US
dc.titleCyclodextrin-functionalized mesostructured silica nanoparticles for removal of polycyclic aromatic hydrocarbonsen_US
dc.typeArticleen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.citation.spage233en_US
dc.citation.epage241en_US
dc.citation.volumeNumber497en_US
dc.identifier.doi10.1016/j.jcis.2017.03.015en_US
dc.publisherAcademic Press Inc.en_US
dc.embargo.release2019-07-01en_US
dc.identifier.eissn1095-7103en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record