Effect of MnS/ZnS nanocomposite on the structural, linear and nonlinear optical properties of PVA/CMC blended polymer

El‐Naggar, A. M.; Mohamed, Mohamed Bakr; Kamal, A. M.; Lakshminarayana, G.; Abd‐Elkader, Omar H.

doi:10.1016/j.optmat.2022.112379

Cited by 38 publications

(17 citation statements)

References 46 publications

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“…Figure 1B demonstrated the XRD of pure blend and their doping system with NiFe 2 O 4 in order to investigate the impact of NiFe 2 O 4 NPs contents on the CMC/PVA blend with varied wt% of NiFe 2 O 4 NPs. According to Figure 1B, pure CMC/PVA displayed a broad halo at 20.2°, confirming the blend's amorphous nature as claimed in the literature 33 . XRD patterns are used to study variations in peak breadth and intensity.…”

Section: Resultssupporting

confidence: 81%

“…The Most of band intensities in the FT‐IR spectrum decrease with the addition of NiFe 2 O 4 NPs to the blend, particularly at the CH stretching vibrations, vibrations, and OH and CO stretching bands. These modifications were taken to suggest that the inclusion of NiFe 2 O 4 NPs resulted in the forming of cross‐links between the NiFe 2 O 4 NPs and the CO of CMC and the ether oxygen atoms of PVA 33 . By contrasting the infrared spectra of Figure 3, it is evident that the addition of NiFe 2 O 4 altered the spectra of the band intensity for pure blend.…”

Section: Resultsmentioning

confidence: 99%

“…According to Figure 1B, pure CMC/PVA displayed a broad halo at 20.2 , confirming the blend's amorphous nature as claimed in the literature. 33 XRD patterns are used to study variations in peak breadth and intensity. The Hodge et al approach, 34 which established a correlation between the intensity of the major XRD peaks and the crystallinity, is applied to explain the reduction in crystallinity.…”

Section: X-ray Crystallography (Xrd)mentioning

confidence: 99%

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Synthesis, characterization, electrical, and magnetic properties of polyvinyl alcohol/carboxymethyl cellulose blend doped with nickel ferrites nanoparticles for magneto‐electronic devices

Al-Sagheer

Rajeh

2023

Polymer Composites

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Solid polymer electrolytes are an intriguing technology in terms of magneto‐opto electronic applications due to having a high dielectric constant, a small band gap, and excellent magnetic characteristics. In order to improve structural, optical, dielectric, conductivity, and magnetic characteristics, this research seeks to prepare nickel ferrite (NiFe2O4) nanoparticles and polyvinylalcohol (PVA)/carboxymethyl cellulose (CMC) films containing NiFe2O4. Nanoparticles of NiFe2O4 are prepared using the co‐precipitation method. The CMC/PVA–NiFe2O4 nanocomposites films are prepared using casting solution. To improve their structural, optical, conductivity, dielectric, and magnetic characteristics, these films electrolytes were examined using XRD, TEM, FT‐IR, UV–vis, and VSM measurements. According to the XRD analysis, the CMC/PVA blend polymer matrix demonstrates a considerable increase in amorphous nature with the NiFe2O4 nanoparticles (NPs) content, producing a highly flexible polymer backbone, increasing ionic conductivity of the CMC/PVA–NiFe2O4 nanocomposite films. The complexation of dopant cations with the CMC/PVA polymer matrix's backbone is confirmed by the FT‐IR spectroscopy. According to the UV–visible technique, the dopant NiFe2O4 concentration considerably affects the optical energy band gap, and Urbach energy of the pure CMC/PVA. At higher loading, these effects are more pronounced. At room temperature, ac conductivity, the dielectric behavior, and electrical modulus formalism were studied. The blend's highest AC conductivity is 4.77 × 103 S/cm. After increasing the loading of NiFe2O4 to 1.5 wt%, it increased to 8.07 × 104 S/cm. There has also been research on dielectric permittivity and electric modulus to further understand conductivity relaxation and charge storage qualities. The polymer nanocomposite, generally, displayed better optical, dielectric constant, conductivity, and magnetic characteristics compared to pure CMC/PVA being useable in terms of high energy storage nanoelectronics' manufacturing.Highlights NiFe2O4 nanoparticles were prepared by using the co‐precipitation method. Nanocomposite films of CMC/PVA–NiFe2O4 were successfully prepared by casting method. XRD patterns confirmed the increase in the degree amorphousity for nanocomposites films compare pure blend. From optical energy gap results for samples prepared was enhanced after addition NiFe2O4. The dielectric and magnetic properties showed that all nanocomposites films exhibited enhanced as compared to pure CMC/PVA film.

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Section: Resultssupporting

confidence: 81%

Section: Resultsmentioning

confidence: 99%

Section: X-ray Crystallography (Xrd)mentioning

confidence: 99%

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Synthesis, characterization, electrical, and magnetic properties of polyvinyl alcohol/carboxymethyl cellulose blend doped with nickel ferrites nanoparticles for magneto‐electronic devices

Al-Sagheer

Rajeh

2023

Polymer Composites

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“…Therefore, the V CB and V VB values of Ni-MOF and MnS are deduced to be −4.46 and −6.04 eV, respectively. The band gap ( E g ) can be estimated from the UV–vis DRS results (Figure S5) according to α hv = A ( hv – E g ) n /2 . , As shown in Tauc plots (Figure d, e), E g of MnS and Ni-MOF is estimated to be 3.27 and 2.65 eV, respectively. As a result, the energy band diagrams of MnS and Ni-MOF before contact are deduced (Figure f).…”

Section: Resultsmentioning

confidence: 99%

Ni-MOF Nanosheet-Decorated MnS Hollow Microspheres as a p-n Heterojunction for High-Performance Supercapacitors

Li,

Luo,

Han

et al. 2023

ACS Appl. Nano Mater.

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“…Material researchers have been interested in polymer blends because adding another polymer can alter the physical and structural characteristics of polymers to suit specific needs. It involves physically combining biopolymers to create a new material with some desirable properties that might be superior to any polymer component [10,11]. For example, the optical band gap, mechanical and dielectric properties of PMMA/PEO were reduced as it doped MWCNTs/Li-doped TiO2 nanoparticles [12].…”

Section: Introductionmentioning

confidence: 99%

Structural, optical, and dielectric properties of PMMA/PEO blend loaded with TiO 2 /V/TBAI

El‐Naggar

Kamal

Mohamed

2023

Preprint

Self Cite

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Blended polymer films based on poly (methyl methacrylate) (PMMA), and poly ethylene oxide (PEO), vanadium doped nano titanium dioxide (TiO2/V) and different amount of tetrabutylammonium iodide (TBAI) were formed by the sol gel and solution casting methods. Rietveld refinement for synchrotron x-ray diffraction was used to investigate structure and microstructure of TiO2/V sample. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) studies revealed the incorporation of the fillers in the prepared blends. The degree of roughness of different films were explored using SEM technique. The effect of TiO2/V and TBAI doping on linear/nonlinear optical parameters, dielectric constant, electric modulus, energy stored and ac conductivity of PMMA/PEO blend was studied using diffused reflectance and LCR meter techniques. The blended polymer's direct and indirect band gaps (5.03, 4.96) eV shrank to (4.99, 4.64) eV as it loaded with TiO2/V and reduced further (4.33, 4.02) eV as it loaded with TBAI. At 500 nm, the refractive (n) value of undoped blend is 1.76 and blend with TiO2/V and 2.5 wt % TBAI has the highest n value (2.16) while blend with TiO2/V and 10 wt % TBAI has the lowest n value (2.06). The influence of doping on the emitted colors from each blend was explored using fluorescence technique and CIE diagram. The controllable optical and electrical features reveal that the PMMA/PEO with TiO2/V and TBAI blends could be potential optical materials in the advances of futuristic flexible-type optoelectronic devices.

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Effect of MnS/ZnS nanocomposite on the structural, linear and nonlinear optical properties of PVA/CMC blended polymer

Cited by 38 publications

References 46 publications

Synthesis, characterization, electrical, and magnetic properties of polyvinyl alcohol/carboxymethyl cellulose blend doped with nickel ferrites nanoparticles for magneto‐electronic devices

Synthesis, characterization, electrical, and magnetic properties of polyvinyl alcohol/carboxymethyl cellulose blend doped with nickel ferrites nanoparticles for magneto‐electronic devices

Ni-MOF Nanosheet-Decorated MnS Hollow Microspheres as a p-n Heterojunction for High-Performance Supercapacitors

Structural, optical, and dielectric properties of PMMA/PEO blend loaded with TiO 2 /V/TBAI

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