PVA nanocomposite hydrogel loaded with silver nanoparticles enriched <i>Nigella sativa</i> oil

Sharmin, Eram; Batubara, Afnan S.; Tamboosi, Bushra Abdulrahman; Khozay, Elaf Bander Al; Alamoudi, Maha Khalid; Aidaroos, Ohoud Zaki Al; Albenayan, Jana Abdullaziz; Lamfon, Majd Yousuf; Sindi, Afnan Abdulhamaid Hassan; Al-Madboly, Lamiaa A.; Shoeib, Nagwa A.; Alam, Manawwer

doi:10.1080/24701556.2021.1963277

Cited by 6 publications

(4 citation statements)

References 47 publications

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“…8 Using polymer and/or polymer blend nanocomposites to harness TiO 2 NPs' benefits is one of the greatest attractive near-term strategies. [9][10][11] Among the most widely used polymers in the industry are polyvinyl chloride (PVC) and polymethyl methacrylate (PMMA) because of their excellent chemical and physical properties. PVC is a synthetic polymer with an amorphous structure.…”

Section: Introductionmentioning

confidence: 99%

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IncorporatedTiO₂nanoparticles intoPVC/PMMApolymer blend for enhancing the optical and electrical/dielectric properties: Hybrid nanocomposite films for flexible optoelectronic devices

Al‐Muntaser,

Abo‐Dief,

Tarabiah

et al. 2023

Polymer Engineering & Sci

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In the present work, sol–gel‐synthesized titanium oxide nanoparticles (TiO2 NPs) were added to polyvinyl chloride (PVC) and polymethyl methacrylate (PMMA) to create polymer nanocomposites (PNCs) samples. The preparation was carried out via the solution casting method. The synthesized TiO2 NPs have a tetragonal anatase phase and an average grain size of 15.7 nm. XRD analysis reveals that the TiO2 NPs' addition to PVC/PMMA causes a decrease in the crystallinity of PNCs films. Infrared Fourier analysis demonstrated the interplay/complexity between the PVC/PMMA blend and TiO2 NPs. The UV/visible spectrum of the PVC/PMMA blend showed two absorbance peaks at 278 and 208 nm, which may result from the n → π* and π → π* transitions. Also, optical bandgaps for indirect and direct allowed transitions decreased with increasing TiO2 NPs concentration. The samples' AC electrical conductivity and dielectric properties were measured at room temperature. As the TiO2 NPs content in the nanocomposite rises, a percolating network begins to emerge inside the composite, demonstrating that AC electrical conductivity obeys Jonscher's law. Additionally, it has been demonstrated that nanoparticle concentration leads to a higher composite dielectric loss and dielectric constant. These findings suggest the possibility of using the prepared nanocomposites in capacitive energy storage and optoelectronic devices.Highlights PVC/PMMA‐TiO2 nanocomposites' films were fabricated via the solution casting method. Adding TiO2 NPs to PVC/PMMA reduces the crystallinity of the PNCs films. The allowed direct and indirect bandgaps decreased with rising TiO2 NPs content. AC conductivity, impedance, and dielectric characteristics were discussed. The findings indicate the use of prepared samples in optoelectronic devices.

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Section: Introductionmentioning

confidence: 99%

“…TiO 2 NPs are highly influenced by non‐structural properties, including density distribution, shape, crystal size, and aspect ratio 8 . Using polymer and/or polymer blend nanocomposites to harness TiO 2 NPs' benefits is one of the greatest attractive near‐term strategies 9–11 …”

Section: Introductionmentioning

confidence: 99%

IncorporatedTiO₂nanoparticles intoPVC/PMMApolymer blend for enhancing the optical and electrical/dielectric properties: Hybrid nanocomposite films for flexible optoelectronic devices

Al‐Muntaser,

Abo‐Dief,

Tarabiah

et al. 2023

Polymer Engineering & Sci

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“…Due to their distinctive properties, polymeric composites have received increasing attention in a range of applications, especially in the development of affordable, lightweight, flexible, and eco-sustainable electronic gadgets [1][2][3]. Polyvinyl alcohol (PVA) is a polar semi-crystalline polymer with OH groups that can work with different fillers in polymeric systems [4][5][6][7] by forming hydrogen bonds.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of the structural, optical, and dispersion performance of polyvinyl alcohol via coronene additive for optoelectronic applications

Al-Muntaser,

Alzahrani,

Abo-Dief

et al. 2023

Phys. Scr.

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Composite films made of polyvinyl alcohol (PVA) filled with various coronene concentrations were fabricated via the solution casting method. Several characterization techniques were used to examine the prepared samples. The X-ray diffraction study shows decreasing semi-crystalline properties in PVA/coronene composites with increasing coronene levels, thereby improving charge carrier mobility and enhancing conductivity. The alterations in the chemical functional groups of the PVA/coronene composites were explored using Fourier-transform infrared spectroscopy (FTIR). The impact of coronene molecules on the optical characteristics of PVA was investigated in the spectral ranges of 190-2500 nm. PVA/coronene composite exhibits higher UV blocking in the 190-400 nm wavelength range, suitable for UV notch filters like laser blocking filters. By increasing the coronene filling ratio from 0 wt% to 3 wt%, both the indirect and direct optical band-gap of PVA films decreased from 5.15 eV and 5.75 eV to 3.83 eV and 5.12 eV, respectively. The single oscillator model (Wemple-DiDomenico) was used to explain the refractive index dispersion region. The extracted values of dispersion energy (Ed), oscillator energy (Eo), dielectric constant at infinite frequency (ε∞), and lattice dielectric constant (εL) of PVA/coronene composite samples increased from 0.78 eV, 2.41 eV, 1.32 and 1.41 to 13.44 eV, 12.22 eV 2.10 and 2.13, respectively. These changes in dispersion parameters are due to cross-linking between the PVA polymeric matrix and the coronene. As a result of these improvements, PVA/coronene films could be applied to flexible packaging applications and optoelectronic devices like solar cells or light-emitting diodes.

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“…One of the most appealing near-term approaches is to utilize the TiO 2 NPs benefits through polymer and/or polymer blend composites [13,14]. Applications for adding nanoparticles like TiO 2 NPs to polymeric materials are anticipated in several industries, including optoelectronics [15], solar cells [16], and energy storage [17].…”

Section: Introductionmentioning

confidence: 99%

An insight into the role of titanium oxide nanofiller on the structural, optical, electrical, and dielectric characteristics of PS/PVK composite

et al. 2023

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Nanocomposite films made of polystyrene (PS) and polyvinyl carbazole (PVK) and filled with varying quantities of titanium oxide (TiO2) nanoparticles (NPs) were prepared using the solution casting process. The TiO2 NPs' impact on the pure PS/PVK blend's structural, optical, and conductive properties was investigated and explained. X-ray diffraction (XRD) and Transmission electron microscopy (TEM) measurements indicate that the synthesized TiO2 NPs' size ranges between 12 and 32 nm and has a tetragonal anatase phase. The XRD scans also indicate that the PS/PVK filling with TiO2 NPs decreases the nanocomposite crystallinity. Fourier transform infrared (FTIR) analysis shows the main distinctive absorption peaks of PS and PVK, whose intensities changed randomly after filling. Moreover, the highest TiO2 NPs content showed a new peak at 449 cm-1. The UV/visible measurements showed that the optical energy gaps for the direct and indirect permitted transitions decreased as the TiO2 NPs content increased. Using impedance spectroscopy at room temperature, the AC electrical conductivity of the PS/PVK mixture containing TiO2 NPs was investigated over a broad frequency range from 10-1 to 107 Hz. It has been shown that the frequency dependence of AC electrical conductivity obeys Jonscher's rule, and the increase of TiO2 NPs concentration in the blend induces the formation of a percolating network within the composite. It has also been shown that the composite's dielectric loss and constant increase with nanoparticle concentration.

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PVA nanocomposite hydrogel loaded with silver nanoparticles enriched Nigella sativa oil

Cited by 6 publications

References 47 publications

IncorporatedTiO₂nanoparticles intoPVC/PMMApolymer blend for enhancing the optical and electrical/dielectric properties: Hybrid nanocomposite films for flexible optoelectronic devices

IncorporatedTiO₂nanoparticles intoPVC/PMMApolymer blend for enhancing the optical and electrical/dielectric properties: Hybrid nanocomposite films for flexible optoelectronic devices

Enhancement of the structural, optical, and dispersion performance of polyvinyl alcohol via coronene additive for optoelectronic applications

An insight into the role of titanium oxide nanofiller on the structural, optical, electrical, and dielectric characteristics of PS/PVK composite

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PVA nanocomposite hydrogel loaded with silver nanoparticles enriched Nigella sativa oil

Cited by 6 publications

References 47 publications

IncorporatedTiO2nanoparticles intoPVC/PMMApolymer blend for enhancing the optical and electrical/dielectric properties: Hybrid nanocomposite films for flexible optoelectronic devices

IncorporatedTiO2nanoparticles intoPVC/PMMApolymer blend for enhancing the optical and electrical/dielectric properties: Hybrid nanocomposite films for flexible optoelectronic devices

Enhancement of the structural, optical, and dispersion performance of polyvinyl alcohol via coronene additive for optoelectronic applications

An insight into the role of titanium oxide nanofiller on the structural, optical, electrical, and dielectric characteristics of PS/PVK composite

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Product

Resources

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IncorporatedTiO₂nanoparticles intoPVC/PMMApolymer blend for enhancing the optical and electrical/dielectric properties: Hybrid nanocomposite films for flexible optoelectronic devices

IncorporatedTiO₂nanoparticles intoPVC/PMMApolymer blend for enhancing the optical and electrical/dielectric properties: Hybrid nanocomposite films for flexible optoelectronic devices