Electrospun nylon 6,6 nanofibers functionalized with cyclodextrins for removal of toluene vapor

Abstract

Functional nylon 6,6 nanofibers incorporating cyclodextrins (CD) were developed via electrospinning. Enhanced thermal stability of the nylon 6,6/CD nanofibers was observed due to interaction between CD and nylon 6,6. X-ray photoelectron spectroscopy and attenuated total reflectance Fourier transform infrared spectroscopy studies indicated the existence of some CD molecules on the surface of the nanofibers. Electrospun nylon 6,6 nanofibers without having CD were ineffective for entrapment of toluene vapor from the environment, whereas nylon 6,6/CD nanofibrous membranes can effectively entrap toluene vapor from the surrounding by taking advantage of the high surface-volume ratio of nanofibers with the added advantage of inclusion complexation capability of CD presenting on the nanofiber surface. The modeling studies for formation of inclusion complex between CD and toluene were also performed by using ab initio techniques. Our results suggest that nylon 6,6/CD nanofibrous membranes may have potential to be used as air filters for the removal of organic vapor waste from surroundings. © 2015 Wiley Periodicals, Inc

Filtering Media by Electrospinning

“…The modeling studies for formation of an inclusion complex between CD and toluene were also performed by using ab initio techniques and the results confirmed that based on the first principles calculation, the complexation energy of toluene-CD is higher for β-CD compared to α-CD and γ-CD as illustrated in Fig. 6.19b [75].…”

Cyclodextrin-functionalized mesostructured silica nanoparticles for removal of polycyclic aromatic hydrocarbons

“…Hence, they have been heavily used in pharmacy, agriculture, textile, catalysis, hygiene, cosmetic and food industry [30][31][32][33]. Further, in our recent studies we have shown that electrospun nanofibers can be functionalized with cyclodextrins as molecular filters for water filtration [34,35] removal of volatile organic compounds (VOCs) [36][37][38][39][40] including aniline, benzene, styrene and toluene, and the removal of phenanthrene from an aqueous system [41,42].…”

Fluorescent Si QD decoration onto a flexible polymeric electrospun nanofibrous mat for the colorimetric sensing of TNT

“…S10b, ESI †) also supported the findings about the higher loading by the impregnation method. The TGA results showed that Nylon 6,6-NF starts to decompose at around 400 1C 41 and this ends at 510 1C, losing almost all of its components (97%), but when it is decorated with Si QD-90, due to the water and other volatile components, the structures gave three different decomposition regions. First, the impregnated and dip-coated samples appear to have the same decomposition characteristics, but due to the different amount of decoration, the weight% loss amounts are different.…”