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dc.contributor.authorSatilmis, B.en_US
dc.contributor.authorBudd, P. M.en_US
dc.contributor.authorUyar T.en_US
dc.date.accessioned2018-04-12T11:10:32Z
dc.date.available2018-04-12T11:10:32Z
dc.date.issued2017-12en_US
dc.identifier.issn1381-5148
dc.identifier.urihttp://hdl.handle.net/11693/37336
dc.description.abstractIn this study, the Polymer of Intrinsic Microporosity (PIM-1) was systematically hydrolyzed in the presence of sodium hydroxide by varying the concentration of base, washing procedure and the time of the reaction. The chemical structure analyses confirmed that PIM-1 could be hydrolyzed by 65% up to 99% conversion depending on the synthesis procedure. The hydrolyzed PIM-1 samples have shown improved solubility which facilitates the fabrication of hydrolyzed PIM-1 ultrafine fibers by electrospinning technique. Extensive optimization studies were performed for the electrospinning of uniform and bead-free fibers from hydrolyzed PIM-1 with different degree of hydrolysis (65%, 86%, 94% and 99%). The electrospun hydrolysed PIM-1 fibrous samples have average fiber diameters (AFD) ranging from 0.58 ± 0.15 μm to 1.21 ± 0.15 μm, depending on the polymer concentration and applied electrospinning parameters. After electrospinning, self-standing hydrolyzed PIM-1 fibrous membranes were obtained which is useful as a filtering material for the adsorption of organic dyes from wastewater. Here, the capability of hydrolyzed PIM-1 electrospun fibrous membranes for the removal of dyes from aqueous solutions was investigated by using a batch adsorption process. The maximum adsorption capacity of fully hydrolyzed PIM-1 fibers was found 157 ± 16 mg g− 1 for Methylene Blue and 4 mg g− 1 for Congo red when the adsorption was conducted by 20 mg L− 1 dye solution without using any dilution. Moreover, maximum dye adsorption was also studied by using concentrated Methylene Blue solutions showing up to 272 mg g− 1 adsorption maximum. In addition, the self-standing fibrous hydrolyzed PIM-1 membrane was employed to separate Methylene Blue from an aqueous system by filtration without the necessity of additional driving force. The results indicate that hydrolyzed PIM-1 electrospun nanofibrous membranes can be a promising filtering material for wastewater treatmenten_US
dc.language.isoEnglishen_US
dc.source.titleReactive and Functional Polymersen_US
dc.relation.isversionofhttps://doi.org/10.1016/j.reactfunctpolym.2017.10.019en_US
dc.subjectDye filtrationen_US
dc.subjectElectrospinningen_US
dc.subjectHydrolyzed PIM-1en_US
dc.subjectNanofibersen_US
dc.subjectWastewater treatmenten_US
dc.subjectAdsorptionen_US
dc.subjectAromatic compoundsen_US
dc.subjectAzo dyesen_US
dc.subjectChemical analysisen_US
dc.subjectComplexationen_US
dc.subjectDyesen_US
dc.subjectElectrospinningen_US
dc.subjectFibersen_US
dc.subjectFiltrationen_US
dc.subjectHydrolysisen_US
dc.subjectMicrofiltrationen_US
dc.subjectNanofibersen_US
dc.subjectSolutionsen_US
dc.subjectSpinning (fibers)en_US
dc.subjectStripping (dyes)en_US
dc.subjectWastewater treatmenten_US
dc.subjectAverage fiber diametersen_US
dc.subjectDye filtrationen_US
dc.subjectElectrospinning parametersen_US
dc.subjectElectrospinning techniquesen_US
dc.subjectElectrospun fibrous membranesen_US
dc.subjectElectrospun nanofibrous membranesen_US
dc.subjectHydrolyzed PIM-1en_US
dc.subjectMethylene blue solutionen_US
dc.subjectFibrous membranesen_US
dc.titleSystematic hydrolysis of PIM-1 and electrospinning of hydrolyzed PIM-1 ultrafine fibers for an efficient removal of dye from wateren_US
dc.typeArticleen_US
dc.departmentUNAM - Institute of Materials Science and Nanotechnology
dc.citation.spage67en_US
dc.citation.epage75en_US
dc.citation.volumeNumber121en_US
dc.identifier.doi10.1016/j.reactfunctpolym.2017.10.019en_US
dc.publisherElsevieren_US
dc.embargo.release2019-12-01en_US


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