A study on optical limiting properties of Eosin-Y and Eriochrome Black-T dye-doped poly (vinyl alcohol) composite film

Manikandan, Maidhily; Yelilarasi, A.; Senthamaraikannan, P.; Saravanakumar, S. S.; Khan, Anish

doi:10.1080/1023666x.2019.1596366

Cited by 12 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Tauc's plot for neat EY is given in Figure 9D with the band gap value of 2.29 eV. [ 74 ] The TE product prepared in the absence of membrane catalyst has the band gap value of 2.02 eV (Figure 9E). When compared with the neat EY the TE product showed slightly lower band gap value.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of functionalized polyvinylidene fluoride (PVDF) and the high temperature catalytic activity of PVDF‐g‐MAH/V₂O₅ nanocomposite toward transesterification reaction

Thamizhlarasan

Vignesh

Anbarasan

et al. 2022

Polymer Engineering & Sci

View full text Add to dashboard Cite

Functionalization of polyvinylidene fluoride (PVDF) was carried out by two different methodology namely, aza-Michael addition and free radical reaction from the dehydrofluorinated PVDF. Functionalization agents like 2MI, CR, and indole were grafted onto KOH treated PVDF via aza-Michael addition reaction whereas MAH and MI were grafted onto the same via free radical reaction. The functionalized PVDF was characterized by FTIR, DSC, TGA, WCA measurement, SEM, and EDX. Further, the MAH grafted PVDF was doped with V 2 O 5 nanoparticles to form a catalytic membrane. Transesterification reaction (TER) was done using the PVDF-g-MAH/V 2 O 5 membrane but ended with negative results due to the low residential time. Hence, it was done in a conventional technique in the presence of pieces of membrane material as a template. The product with the red shift in the absorbance spectrum confirmed the TER.

show abstract

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of functionalized polyvinylidene fluoride (PVDF) and the high temperature catalytic activity of PVDF‐g‐MAH/V₂O₅ nanocomposite toward transesterification reaction

Thamizhlarasan

Vignesh

Anbarasan

et al. 2022

Polymer Engineering & Sci

View full text Add to dashboard Cite

show abstract

“…Addition of EY dye molecules implies a signi cant reduction in the optical band gap of pure PVA from 4.22eV reduced to 2.14eV for PVA/EY lm, refers to inter-molecular hydrogen bonding that occurred between the PVA hydroxyl group and EY carboxyl group. PVA-EY lms have non-linear optical properties that make them useful as lters on a large level [21]. In this work the PVA/PEG-EY, with different PEG concentrations prepared using solution casting technique method.…”

Section: Introductionmentioning

confidence: 99%

Effect of gamma radiation on optical properties of PVA/PEG/EY blend, and radiochromism.

Alibwaini

Ajlouni

Sharshar

et al. 2022

Preprint

View full text Add to dashboard Cite

PVA/PEG/EY samples were irradiated using of 50 KGy, gamma radiation dose. To investigate the effects of irradiation on the optical properties of the blend, UV-vis spectroscopy is used to study 6 samples of the blend, with different PEG content, 0, 1, 3, 5, 10, 15 percent, before and after irradiation. Radiation effects manifest itself as many changes in the following parameters: The absorption for all sample decreases after irradiation, the direct and indirect energy gap value increases after irradiation, the values of the extinction coefficient decrease after irradiation. The values of the extinction coefficient, k, of the nonirradiated samples are decreased or increased depending on the PEG content, while it increased for all irradiated samples despite of the PEG content. The refractive index, n, increases with increasing PEG concentration for irradiated and nonirradiated samples. The main changes occurred in the optical parameters after irradiation are: an increase in the values of the dispersion energy parameter, Ed, an increase in the single oscillator energy Eo, an immense decrease in the average oscillator strength, So, a large increase in the ratio of the effective number of carrier concentration to the effective mass of the electron (e2 /πc2). The values of the real and imaginary parts of the optical permittivity of irradiated samples are less than nonirradiated samples. The optical conductivity, σopt, increase for all irradiated samples. The values of O.D, are changing in four specific regions. The decrease and increase in O.D values depend on the variation in absorbance values which depend on PEG concentrations, and the role of irradiation in changing the absorbance of the blend.

show abstract

“…As for the reason for choosing PVA since it can be dissolved in water, resistant to solvents, it is considered non-toxic polymer and flexible. EBT has attracted a lot of attention in recent years, in 2008 electrochemical studies were performed by Chandra et al [61] on EBT and Smolinska et al [62] proved for the first time that EBT is a new analytical reagent for spectrophotometric determination of sulphanilamides and absorption studies were carried out on EBT by Almeida et al [63] and Fajaruati et al [64], and optical limiting properties of Eosin-Y and EBT dye-doped PVA composite film have been studied by Manikandan et al [65].…”

Section: Introductionmentioning

confidence: 99%

Characterizing optical and morphological properties of Eriochrome Black T doped polyvinyl alcohol film

et al. 2020

View full text Add to dashboard Cite

Eriochrome Black T doped polyvinyl alcohol film was prepared on a glass substrate via the casting method. Optical microscope image of the film was taken by an optical microscope and analyzed by an Image J and origin 2008 software where it was proved that the film was free of defects and holes and uniformly distributed over entire area of the substrate. The optical constants of the film were calculated via the optical absorbance and transmittance in the wavelength range 350–900 nm via the use of a set of known mathematical formulas together with Wemple and DiDomenico model. The optical conductivity and the electrical conductivity of the prepared film in response to external electric filed are obtained using two more equations where it was found that the prepared film have high optical conductivity of the order of 1012 s−1 and an electrical conductivity of the order of 104 (S cm−1).

show abstract

A study on optical limiting properties of Eosin-Y and Eriochrome Black-T dye-doped poly (vinyl alcohol) composite film

Cited by 12 publications

References 15 publications

Synthesis and characterization of functionalized polyvinylidene fluoride (PVDF) and the high temperature catalytic activity of PVDF‐g‐MAH/V₂O₅ nanocomposite toward transesterification reaction

Synthesis and characterization of functionalized polyvinylidene fluoride (PVDF) and the high temperature catalytic activity of PVDF‐g‐MAH/V₂O₅ nanocomposite toward transesterification reaction

Effect of gamma radiation on optical properties of PVA/PEG/EY blend, and radiochromism.

Characterizing optical and morphological properties of Eriochrome Black T doped polyvinyl alcohol film

Contact Info

Product

Resources

About

A study on optical limiting properties of Eosin-Y and Eriochrome Black-T dye-doped poly (vinyl alcohol) composite film

Cited by 12 publications

References 15 publications

Synthesis and characterization of functionalized polyvinylidene fluoride (PVDF) and the high temperature catalytic activity of PVDF‐g‐MAH/V2O5 nanocomposite toward transesterification reaction

Synthesis and characterization of functionalized polyvinylidene fluoride (PVDF) and the high temperature catalytic activity of PVDF‐g‐MAH/V2O5 nanocomposite toward transesterification reaction

Effect of gamma radiation on optical properties of PVA/PEG/EY blend, and radiochromism.

Characterizing optical and morphological properties of Eriochrome Black T doped polyvinyl alcohol film

Contact Info

Product

Resources

About

Synthesis and characterization of functionalized polyvinylidene fluoride (PVDF) and the high temperature catalytic activity of PVDF‐g‐MAH/V₂O₅ nanocomposite toward transesterification reaction

Synthesis and characterization of functionalized polyvinylidene fluoride (PVDF) and the high temperature catalytic activity of PVDF‐g‐MAH/V₂O₅ nanocomposite toward transesterification reaction