Enhanced molecular structure, thermal stability, and linear/nonlinear optical characteristics of chitosan/titanium dioxide nanocomposite films

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: May 21, 2024

This study sought to fabricate and characterize novel nanocomposite films of chitosan titanium dioxide in terms molecular structure, thermal, optical properties for usage food packaging optoelectronic applications. Fourier transform infrared analysis confirmed that TiO₂-NPs interacted with demonstrated good compatibility. Differential scanning calorimetry thermogravimetric revealed increasing the concentration improved thermal stability nanocomposites. The linear UV-Vis range (200–800 nm) were measured spectrophotometrically. Below 400 nm, transmittance spectra nanocomposites show decreased degrees transparency, indicating their capacity entirely block UV-light transmission. Tauc's model was used identify types electronic transitions samples. single-oscillator utilized investigate dispersion energy parameters. Nonlinear also investigated. from 0 12 wt% reduced absorption edge 2.716 2.043 eV, direct (3.282 2.798 eV) indirect (2.417 1.581 band gaps, increased Urbach 0.692 1.295 11.324 5.621 single oscillator 6.308 5.393 other nonlinear findings support CS/TiO₂ industry a variety

Language: Английский

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Nonlinear optical parameters and electronic properties of plasma polymerized methyl acrylate thin films

Heliyon, Journal Year: 2024, Volume and Issue: 10(21), P. e39800 - e39800

Published: Oct. 25, 2024

Language: Английский

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Enhancement of Molecular Structural and Linear/Nonlinear Optical Features of Chitosan/Titanium Dioxide Nanocomposite Films for Food Packaging and Optoelectronic Applications

East European Journal of Physics, Journal Year: 2024, Volume and Issue: 4, P. 469 - 490

Published: Dec. 8, 2024

The current study aims to synthesize and characterize nanocomposite films of chitosan titanium dioxide in terms molecular structure, thermal optical properties for use food packaging optoelectronic applications. Fourier-transform infrared (FTIR) spectroscopy was used the interaction between TiO2-NPs analysis confirmed that interacted with demonstrated good compatibility. Differential scanning calorimetry thermogravimetric revealed increasing concentration improved stability nanocomposites. linear UV-Vis range (200–800 nm) were measured spectrophotometrically. Below 400 nm, transmittance spectra nanocomposites show decreased degrees transparency, indicating their capacity entirely block UV-light transmission. Tauc's model identify types electronic transitions samples. single-oscillator utilized investigate dispersion energy parameters. Nonlinear also investigated. region (360-410 nm), from 0 12 wt% reduced absorption edge 2.716 2.043 eV, direct (3.282 2.798 eV) indirect (2.417 1.581 band gaps, increased Urbach 0.692 1.295 11.324 5.621 single oscillator 6.308 5.393 other nonlinear findings support usage CS/TiO2 industry a variety

Language: Английский

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Impact of DNA and dyes on enhanced OPTO -electronic properties of PVA

Materials Today Proceedings, Journal Year: 2023, Volume and Issue: unknown

Published: March 1, 2023

Language: Английский

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Effect of adding MgO and NiO nano-oxides on the spectroscopic properties of Nile Blue laser dye

Journal of Optics, Journal Year: 2023, Volume and Issue: 53(1), P. 493 - 499

Published: April 21, 2023

Language: Английский

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Study on electrical and structural properties of PVA doped BSA and dyes composite films

Materials Today Proceedings, Journal Year: 2023, Volume and Issue: unknown

Published: May 1, 2023

Language: Английский

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