Cyclodextrin functionalized poly(methyl methacrylate) (PMMA) electrospun nanofibers for organic vapors waste treatment

Abstract

Cataloged from PDF version of article.Poly(methyl methacrylate) (PMMA) nanofibers containing the inclusion complex forming beta-cyclodextrin (β-CD) were successfully produced by means of electrospinning in order to develop functional nanofibrous webs for organic vapor waste treatment. Electrospinning of uniform PMMA nanofibers containing different loadings of β-CD (10%, 25% and 50% (w/w)) was achieved. The surface sensitive spectroscopic techniques; X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) showed that some of the β-CD molecules are present on the surface of the PMMA nanofibers, which is essential for the trapping of organic vapors by inclusion complexation. Direct pyrolysis mass spectrometry (DP-MS) studies showed that PMMA nanowebs containing β-CD can entrap organic vapors such as aniline, styrene and toluene from the surroundings due to inclusion complexation with β-CD that is present on the fiber surface. Our study showed that electrospun nanowebs functionalized with cyclodextrins may have the potential to be used as molecular filters and/or nanofilters for the treatment of organic vapor waste and air filtration purposes

Surface modification of electrospun polyester nanofibers with cyclodextrin polymer for the removal of phenanthrene from aqueous solution

“…Moreover, in order to combine the complex formation capability of CD along with very high surface area of the electrospun nanofibrous mat, surface functionalization of electrospun nanofibers with CD would be quite interesting for designing efficient filtering materials. In fact, in our recent studies we have incorporated CD into nanofibers by electrospinning of physical mixture of polymer/CD solution [4,22,23]. Although most of the CD molecules were buried inside the fiber matrix, we observed that some CD molecules were present on the fiber surface, and these surface associated CD molecules were effective for the removal of organic molecules from liquid media [22,23] and vapor phase [4].…”

“…It has been reported that electrospun nanofibrous mats are quite effective for particulate separation [2,3], liquid filtration [1][2][3], waste vapor treatment [4,5] as well as desalination [6]. Electrospinning has advantage over conventional membrane production techniques, since variety of functional nanofibrous materials can be easily obtained in the form of nonwoven membranes which can be readily used as a filtering material [1][2][3].…”

Molecular entrapment of volatile organic compounds (VOCs) by electrospun cyclodextrin nanofibers

“…In our previous studies, we have demonstrated that CD functionalized polymeric NF can be potentially used as molecular filters for the air and water filtration by removing organic molecules from the required environment (Kayaci et al, 2013;Kayaci and Uyar, 2014;Uyar et al, 2009Uyar et al, , 2010aUyar et al, , 2010b. The integration of polymeric NF with CD, facilitated the entrapment property of nanofibrous webs owing to the complexation capability of CD molecules located on the fiber surface (Kayaci et al, 2013;Kayaci and Uyar, 2014;Uyar et al, 2009Uyar et al, , 2010aUyar et al, , 2010b. Furthermore, in our very recent study, we eliminated the polymer matrix and we have shown that the polymer-free γ -CD NF can also efficiently encapsulate aniline and toluene vapor from the environment depending on the inclusion complexation so these nanofibrous webs have great potential to be used as a molecular filter (Celebioglu and Uyar, 2013b).…”

“…One of the associated studies, the fly ash particles were blended with polyurethane to produce composite electrospun membranes for the removal of VOCs . In our very recent reports, we functionalized electrospun poly (methyl methacrylate) (PMMA) NF with β-cyclodextrin (β-CD) molecules (Uyar et al, 2010b). In another study, we functionalized electrospun polyethylene terephthalate (PET) NF with three native CD types (α-CD, β-CD and γ -CD) for the entrapment of VOCs from environment (Kayaci and Uyar, 2014).…”

Electrospinning for nano- to mesoscale photonic structures

“…Biologically, hybrid nanofiber scaffolds have provided a cell niche conducive to improved attachment, proliferation, and cell differentiation [190][191][192][193][194][195][196][197][198], as well as targeted drug delivery carriers [198][199][200][201][202][203][204][205][206]. Filtration using ONFs [207] equipped with activated carbon has revealed adsorption of volatile organic compounds (VOCs) present in the air [208][209][210], and Scholten et al reported that adsorption and desorption of VOC by electrospun nanofibrous membranes (ENMs) were faster than that of conventional activated carbon [208]. Such examples demonstrate the pervasive nature of ONF systems, which will continue to provide innovative enhancement of technologies we use every day.…”