Preparation and Characterization of Honey-Treated PVA Nanowebs

Turaga, Uday; Singh, Vinitkumar; Gibson, Anna; Maharubin, Shahrima; Korzeniewski, Carol; Presley, Steven M.; Smith, Ernest; Kendall, Ronald J.; Ramkumar, S.

doi:10.14504/ajr.3.3.4

Cited by 14 publications

(18 citation statements)

References 33 publications

(54 reference statements)

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“…It was probably related to the content of carboxylic acids in different types of honey resulting from the floral origin, geographic location and possible environmental pollution [2,[12][13][14][15][16][17]. Similarly as for alcohols, the O-H stretching vibration band in carboxylic acids is very broad and occurs in the field of 3300-2500 cm -1 [18][19][20][21][22] with the maximum at 3000 cm -1 . This is the same area as the stretching vibration region for carbon and aromatic C-H groups [23].…”

Section: Ftir Spectroscopic Studiesmentioning

confidence: 99%

Application of FTIR spectroscopy for analysis of the quality of honey

et al. 2018

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Abstract. Every kind of honey is a very precious natural product which is made by Mellifera bees species. The chemical composition of honey depends on its origin or mode of production. Honey consists essentially of different sugars, predominantly fructose and glucose. There are also nonsugar ingredients like proteins and amino acids, as well as some kind of enzymes, such as: invertase, amylase, glucose oxidase, catalase and phosphatase. The fact that honey is one of the oldest medicine known worldwide is remarkable. Scientists all over the world have been trying to improve analytical methods as well as to implement new ones in order to reaffirm the high quality of honey the benefits of which may be distracted or disturbed. There are many methods and popular analytical techniques, including as follows: mass spectroscopy and molecular spectroscopy (especially FTIR spectroscopy). The infrared spectroscopy technique is one of the most common analytical methods which are used to analyse honey nowadays. The main aim of the task was to use ATR-FTIR infrared spectroscopy to compare selected honey samples as well as typical sequences coming out from certain functional groups in the analysed samples.

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Section: Ftir Spectroscopic Studiesmentioning

confidence: 99%

Application of FTIR spectroscopy for analysis of the quality of honey

et al. 2018

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“…Nanofibers demonstrate several outstanding characteristics, for example large surface area to volume ratio, flexibility, and easily modified physical/chemical properties . These amazing characteristics make nanofibers superior candidates for air or water filtration, medical applications, lithium ion battery applications, piezoelectric products, nano‐sensors, skin masks, and tissue engineering scaffolds …”

Section: Introductionmentioning

confidence: 99%

Tensile testing and fracture mechanism analysis of polyvinyl alcohol nanofibrous webs

Lou

Kendall

et al. 2020

J of Applied Polymer Sci

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A tensile properties testing study was conducted to understand the influence of thickness, cross-head speed (speed of testing), gauge length (GL; specimen test length), and sample shape on important tensile properties of polyvinyl alcohol (PVA) nanofiber webs. The effects of each testing parameter on load at break, extension at break, Young's modulus, and tensile stress-strain curve of PVA nanofiber webs are analyzed. The Welch two sample t-tests show the significant difference among tested data. Using interaction plots, two-way analysis of variance, and margin mean plots, the interaction effects among testing parameters have been analyzed. Of all the factors, cross-head speed, the interaction among GL, and sample thickness (GL: Thickness) and the interaction among GL, testing speed and sample thickness (GL: Speed: Thickness) have significant influence on the tensile properties of PVA nanofiber webs. Moreover, the hypothesized model of mechanism of tensile strain-stress curve of PVA nanofiber webs has been proposed. Based on the model, the tensile strain-stress curve can be split into three stages: linear elastic, partial break up, and complete breakage. This study will provide a better understanding of tensile testing parameters' effects and their interaction effects on the tensile properties of nanowebs.

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“…Functional photocatalytic nanofiber webs are promising environmentally friendly candidates for the photodegradation of organic pollutants, such as dyes and pigments. Nanofibers have high specific morphology, small diameter and small pore size, and customizable physicochemical characteristics, which make them excellent candidates in wastewater treatment, biomedical applications, protein purification, and air filtration…”

Section: Introductionmentioning

confidence: 99%

“…Electrospinning is a popular and simple method to produce functional nanofiber webs among all existing nanofiber webs technologies, such as melt spinning, solution spinning, and emulsion spinning, because of its high efficiency and uniformity in fiber diameter . In addition, by dispersing nanoparticles into electrospinning solution, the nanoparticles can be embedded into nanofibers more uniformly compared to smearing nanoparticles on the nanowebs' surface through post‐treatment methods.…”

Section: Introductionmentioning

confidence: 99%

Visible Light Photocatalytic Functional TiO₂/PVDF Nanofibers for Dye Pollutant Degradation

Lou

Wang

Lee

et al. 2019

Part & Part Syst Charact

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contaminated water becomes an environmental hazard.Functional photocatalytic nanofiber webs [6,7] are promising environmentally friendly candidates for the photodegradation of organic pollutants, such as dyes and pigments. Nanofibers have high specific morphology, [8] small diameter [9] and small pore size, [10] and customizable physicochemical characteristics, [11] which make them excellent candidates in wastewater treatment, [12] biomedical applications, [13][14][15] protein purification, [16] and air filtration. [17] Poly(vinylidene fluoride) (PVDF) [18] is a commonly used hydrophobic polymer for wastewater treatment, due to its excellent thermal stability, mechanical stability, chemical resistance, and selective permeability. However, interception effect (meaning large particles would be intercepted by small pore size nanofiber webs), the major ultrafiltration mechanism for unfunctionalized PVDF nanofiber webs, [19] limits their applications because of their low filtration efficiency and poor functionality. The addition of nanoparticles could improve the photocatalytic properties, [20] mechanical properties, [21] hydrophobicity, [22,23] and other functional performances of nanofiber webs. [19][20][21][22][23] Moreover, physical modification methods (addition of functional nanoparticles) have proved to be simpler and more effective than chemical modification methods. [24] Commonly used nanoparticles include titanium dioxide (anatase TiO 2 ), [25] zinc oxide (ZnO), [26] aluminum oxide (Al 2 O 3 ), [27] magnetite (Fe 3 O 4 ), [28] graphite oxide (GO), [29] multiwalled carbon nanotubes (MWCNTs), [30] and polymeric nanoparticles. [31] Polymeric nanoparticles, including nanospheres and nanocapsules, are formed by a polymeric matrix and mainly used for drug delivery, where the molecules are absorbed in or on the matrix, for example, encapsulation of insulin in poly(lactic-co-glycolic acid) nanoparticles. [32] Among these nanoparticles, anatase titanium dioxide is the most widely used catalyst for water treatment because of low cost, stability in water, and high photocatalytic property. [19][20][21] The addition of TiO 2 in nanofiber webs can greatly improve the degradation rate of organic pigments/dyes pollutants, [19] antibacterial properties, [20] and other performances (antifouling property, wettability). [20,21,23] Electrospinning is a popular and simple method to produce functional nanofiber webs among all existing nanofiber webs technologies, such as melt spinning, solution spinning, andThe photodegradation of poly(vinylidene fluoride) (PVDF)/titanium oxide (TiO 2 ) nanofibers under visible light is described, something that has not been previously reported in the literature. Visible light photocatalytic electrospun PVDF/TiO 2 nanofiber webs with anatase TiO 2 concentration varying from 0% to 20% (0%, 1%, 3%, 5%, 10%, and 20%) are produced, and their ability to degrade a toxic pollutant, Rhodamine B (RhB), is studied. Photodegradation study using UV-vis spectroscopy on PVDF/TiO 2 nanofiber webs (with TiO 2 con...

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Preparation and Characterization of Honey-Treated PVA Nanowebs

Cited by 14 publications

References 33 publications

Application of FTIR spectroscopy for analysis of the quality of honey

Application of FTIR spectroscopy for analysis of the quality of honey

Tensile testing and fracture mechanism analysis of polyvinyl alcohol nanofibrous webs

Visible Light Photocatalytic Functional TiO₂/PVDF Nanofibers for Dye Pollutant Degradation

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Preparation and Characterization of Honey-Treated PVA Nanowebs

Cited by 14 publications

References 33 publications

Application of FTIR spectroscopy for analysis of the quality of honey

Application of FTIR spectroscopy for analysis of the quality of honey

Tensile testing and fracture mechanism analysis of polyvinyl alcohol nanofibrous webs

Visible Light Photocatalytic Functional TiO2/PVDF Nanofibers for Dye Pollutant Degradation

Contact Info

Product

Resources

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Visible Light Photocatalytic Functional TiO₂/PVDF Nanofibers for Dye Pollutant Degradation