PVA/PVP/PEG polymeric blend loaded with nano-Zn0.75−xFexCd0.25S: effect of iron concentration on the optical characteristics

El‐Naggar, A. M.; Mohamed, Mohamed Bakr; Kamal, A. M.; Lakshminarayana, G.

doi:10.1007/s00339-022-05351-0

Cited by 14 publications

(4 citation statements)

References 49 publications

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“…CuO contents. This increment in SELF and VELF refers to growth in vacant energ levels generated in the host band gap[59]. Similar behavior is noticed El-naggar et al[26 They showed SELF and VELF increase of the PVA/PVP upon increasing SnS2/Fe concen tration.…”

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confidence: 70%

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Modification of the Structure and Linear/Nonlinear Optical Characteristics of PVA/Chitosan Blend through CuO Doping for Eco-Friendly Applications

Alharthi

Badawi

2023

Polymers

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The solution casting technique is utilized to fabricate blank and CuO-doped polyvinyl alcohol/chitosan (PVA/CS) blends for eco-friendly applications. The structure and surface morphologies of prepared samples were explored by Fourier transform infrared (FT-IR) spectrophotometry and scanning electron microscopy (SEM), respectively. FT-IR analysis reveals the incorporation of CuO particles within the PVA/CS structure. SEM analysis exposes the well-dispersion of CuO particles in the host medium. The linear/nonlinear optical characteristics were found on the basis of UV-visible-NIR measurements. The transmittance of the PVA/CS decreases upon CuO increasing to 20.0 wt%. The optical bandgap (Eg dir./Eg ind.) decreases from 5.38/4.67 eV (blank PVA/CS) to 3.72/3.12 eV (20.0 wt% CuO-PVA/CS). An obvious improvement in the optical constants of the PVA/CS blend is achieved by CuO doping. The Wemple-DiDomenico (WDD) and Sellmeier oscillator models were utilized to examine the CuO role dispersion behavior of the PVA/CS blend. The optical analysis shows clear enrichment of the optical parameters of the PVA/CS host. The novel findings in the current study nominate CuO-doped PVA/CS films for applications in linear/nonlinear optical devices.

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confidence: 70%

“…In addition, both SELF and VELF increased upon increasing the CuO contents. This increment in SELF and VELF refers to growth in vacant energy levels generated in the host band gap [ 59 ]. Similar behavior is noticed El-naggar et al [ 26 ].…”

Section: Resultsmentioning

confidence: 99%

Modification of the Structure and Linear/Nonlinear Optical Characteristics of PVA/Chitosan Blend through CuO Doping for Eco-Friendly Applications

Alharthi

Badawi

2023

Polymers

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“…1 Poly(vinyl alcohol) (PVA) is a widely used commercial polymer with many features such as nontoxicity, biodegradability, film-forming ability, high thermal and chemical stability, low cost, semi-crystalline structure, hydrophilic character, cross-linking, and doping ability with OH functional groups. 2,3 Polyvinyl pyrrolidine with high water solubility has good properties, such as biocompatibility, low toxicity, high dielectric constant, ease of formation, and environmental stability. This polymer, which can accept protons with its N atom and carbonyl group, allows blending with the OH group on PVA.…”

Section: Introductionmentioning

confidence: 99%

“…Inorganic–organic hybrid materials prepared using different methods, such as doping and blending, appear to have high application potential in many technological fields 1 . Poly(vinyl alcohol) (PVA) is a widely used commercial polymer with many features such as nontoxicity, biodegradability, film‐forming ability, high thermal and chemical stability, low cost, semi‐crystalline structure, hydrophilic character, cross‐linking, and doping ability with OH functional groups 2,3 . Polyvinyl pyrrolidine with high water solubility has good properties, such as biocompatibility, low toxicity, high dielectric constant, ease of formation, and environmental stability.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of novel boron containing nanocomposites with neutron radiation shielding properties

Saltan,

Şirin,

Aydin

et al. 2023

Polymer Composites

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PVA/PEO/PVP‐B4C and PVA/PEO/PVP‐BN polymer nanocomposites were prepared using boron nitrite (BN), boron carbide (B4C), polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), and polyethylene oxide (PEO). B4C and BN nanopowders were added to the mixture at three different percentages: 5%, 10%, and 20%. Thermal characterization was performed by differential scanning calorimetry, differential thermal analysis and thermogravimetry. Scanning electron microscopy, X‐ray photoelectron spectroscopy, and X‐ray diffraction were used for surface analysis and crystal structure characterization. The atomic distribution was determined by elemental analysis. Neutron shielding properties were performed at three different gamma peak areas, 1293.56 keV, 1097.33 keV, 416.86 keV, and calculated total macroscopic cross‐section ΣT and half‐value layer. The ΣT values were found to be in the range of 7.99–14.37 for all synthesized composites. B4C‐doped composites show higher protection efficiency against slow thermal neutrons than BN‐doped samples.Highlights Poly(vinyl alcohol)/poly(ethylene oxide)/polyvinylpyrrolidone composites containing boron nanoparticles are flexible and workable. Nanocomposites were prepared with a simple, cheap, and fast method. Prepared boron nanocomposites exhibit slow thermal neutron stopping even at 3 mm thickness. PVA90/PEO5/PVP5‐BN and PVA90/PEO5/PVP5‐B4C composites are good candidates for demanding military applications such as vehicle and body armor.

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Effects of composition ratio of nano ZnS on structural and optical characteristics of Eu-doped maghemite$$/$$ZnS nanocomposite system

Ahmed

Mohamed

2022

Appl. Phys. A

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PVA/PVP/PEG polymeric blend loaded with nano-Zn0.75−xFexCd0.25S: effect of iron concentration on the optical characteristics

Cited by 14 publications

References 49 publications

Modification of the Structure and Linear/Nonlinear Optical Characteristics of PVA/Chitosan Blend through CuO Doping for Eco-Friendly Applications

Modification of the Structure and Linear/Nonlinear Optical Characteristics of PVA/Chitosan Blend through CuO Doping for Eco-Friendly Applications

Preparation and characterization of novel boron containing nanocomposites with neutron radiation shielding properties

Effects of composition ratio of nano ZnS on structural and optical characteristics of Eu-doped maghemite$$/$$ZnS nanocomposite system

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