Effect of zinc oxide nanoparticles on physical properties of carboxymethyl cellulose/ poly (ethylene oxide) matrix

Hameed, S.T.; Qahtan, Talal F.; Abdelghany, A.M.; Oraby, A.H.

doi:10.1016/j.physb.2022.413771

Cited by 28 publications

(9 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The spectrum of pure blend showed a small band at 205 nm, ascribed to the transition n → π* (R band) 17,20,22,24 and distinguished by the sharp edge at about 200 nm, which moved toward longer wavelengths (red shift) for filled samples. These red shifts may be due to the increase of amorphous and disorder regions, which suggested a reduction in the optical energy gap (E g ) value and homogeneity between the host CMC/SA polymer matrix and NPs 31,32 . The absorbance of filled samples was higher than that of pure CMC/SA blend and the main characteristic peaks were red shifted due to formation of inter/intermolecular hydrogen bonding between the ions of NPs ions and the polar groups of the CMC/SA and the existence of NPs that passage resists of light within the nanocomposite films 8,28 .…”

Section: Resultsmentioning

confidence: 99%

“…These red shifts may be due to the increase of amorphous and disorder regions, which suggested a reduction in the optical energy gap (E g ) value and homogeneity between the host CMC/SA polymer matrix and NPs. 31,32 The absorbance of filled samples was higher than that of pure CMC/SA blend and the main characteristic peaks were red shifted due to formation of inter/intermolecular hydrogen bonding between the ions of NPs ions and the polar groups of the CMC/SA and the existence of NPs that passage resists of light within the nanocomposite films. 8,28 Further, the two new peaks of filled samples at 275 and 411 nm The E g value was obtained from the UV/Vis.…”

Section: Uv/vis Measurementmentioning

confidence: 99%

See 1 more Smart Citation

Structural, optical, thermal, and dielectric properties of carboxymethyl cellulose/sodium alginate blend/lithium titanium oxide nanoparticles: Biocomposites for lithium‐ion batteries applications

Abdallah

Morsi

Asnag

et al. 2022

Intl J of Energy Research

View full text Add to dashboard Cite

Summary Nanocomposites samples of carboxymethyl cellulose (CMC)/sodium alginate (SA) blend (70/30 wt%)‐loaded lithium titanium oxide nanoparticles (Li4Ti5O12 NPs) were prepared using the casting method. X‐ray diffraction (XRD) spectra showed a decrease of the crystallinity with increasing Li4Ti5O12 concentrations. Fourier‐transform infrared (FT‐IR) inferred the interaction and complexation between the blend components (CMC/SA), also showed the interaction between Li4Ti5O12 and the functional groups of CMC/SA in particular CHOCH2 stretching, COO− stretching, and OH stretching vibrations. The optical properties of samples enhanced in optical energy gap as the concentration of Li4Ti5O12 increased. The differential scanning calorimetry (DSC) measurement showed that the pure sample has a single glass transition temperature (Tg), which denoted that the blend components were miscible. Also, DSC showed an enhancement in the thermal stability of polymeric blend after the addition of Li4Ti5O12. The highest value of AC conductivity was noticed at the highest concentration of Li4Ti5O12, which was also increased with increasing temperature. The maximum electrical conductivity obtained at 0.40 wt% of Li4Ti5O12 in the polymeric matrix is 9.35 × 10−6 S/cm at room temperature at 107 Hz. The complex permittivity (ε*) was decreased with the increase of both Li4Ti5O12 content and the temperature degree. At high frequencies, the decreasing trend of permittivity was assigned to dipoles orientation. These results indicated that CMC/SA/Li4Ti5O12 nanocomposites would be promising for energy storage capacitors applications and alternative separator rechargeable lithium‐ions batteries industries.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Uv/vis Measurementmentioning

confidence: 99%

Structural, optical, thermal, and dielectric properties of carboxymethyl cellulose/sodium alginate blend/lithium titanium oxide nanoparticles: Biocomposites for lithium‐ion batteries applications

Abdallah

Morsi

Asnag

et al. 2022

Intl J of Energy Research

View full text Add to dashboard Cite

show abstract

“…From the pure CMC spectrum, main characteristic peaks were noticed. The broad peak noticed at 3397 cm − 1 was assigned to O-H stretching [24,25], while the small peak at 2922 cm − 1 was attributed to CH 2 asymmetric stretching [25]. The peak at 1596 cm − 1 was due to the carbonyl (C = O) stretching of the protonated carboxylic acid group (-COOH) [25,27] The wavenumbers and bands assignments of the PEO, CMC and pure blend were reported in Table 1.…”

Section: Ft-ir Analysismentioning

confidence: 99%

“…The indirect optical energy gap of the pure PEO/CMC blend is 4.49 eV, this value was signi cantly reduced via rising the ZnO until reaches 1.88 eV in PEO/CMC/ZnO samples, while the direct optical energy gap of the pure blend is 4.97 eV and reached 3.62 eV at highest concentration, as shown in Table 2. These defects generate the localized states that re ect the decrease in the crystallinity degree in polymeric lms [24,32]. SEM micrographs of PEO/CMC/ZnO nanocomposites are shown in Fig.…”

Section: Optical Properties (Uv/vis)mentioning

confidence: 99%

Enhanced structural, optical, electrical properties and antibacterial activity of PEO/CMC doped ZnO nanorods for energy storage and food packaging applications

et al. 2022

View full text Add to dashboard Cite

The zinc oxide nanorods (ZnONRs) have been successfully prepared via sol-gel way. A series of Poly(ethylene oxide) and Carboxymethyl cellulose (PEO/CMC) blend samples lled with different concentration of ZnONRs were prepared using casting method. Transmission electron microscopic (TEM) image showed that the synthesized ZnONPs had a diameter in the range of 29.29 to 59.09 nm. These samples were characterized by different analytical techniques. On the basis of results obtained from XRD and FT-IR analysis, blends are miscible. Fourier transform infrared (FT-IR) spectroscopy exhibited the complexation between PEO/CMC blend and ZnONRs. The optical energy gap was calculated using the UV/vis. data. The maximum value of AC conductivity for the pure blend was 1.98×10 − 7 S.cm − 1 , and by raising the lling of ZnONRs increased to 3.26×10 − 6 S.cm − 1 at highest concentration. After the added of ZnONRs, an improvement for the dielectric constant (ε′) and dielectric loss ( ") of PEO/CMC are detected.These samples can be employment in the semiconductor industries and portable electrochemical batteries, electric vehicles and grid energy storage, due to the noticed enhancements in optical, and AC conductivity. PEO/CMC/ZnONRs lms were screened for their in vitro antibacterial activity against S.aureus and E. coli bacteria have been tested. The excellent antimicrobial activity of these lms provides a novel and simple way for the synthesis nanocomposites as functional biomaterials and has the possibility for usage in food packaging applications.

show abstract

“…It is practically insolvable in ethanol but easy to be dissolved in hot or cold water which yielded with water a viscous colloidal solution. Na-CMC has received more attention owing to its low price (abundance), aptitude to form membranes, better biocompatibility, super water solubility, and swell susceptibility [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Molecular structure and optical attributes of (Na-CMC/SA) natural polymer blend

El-Bana¹,

Abdelghany²,

Meikhail³

2022

Bull. Chem. Soc. Eth.

View full text Add to dashboard Cite

ABSTRACT. Biopolymers are referred to the bio-degradable polymer that is derived from living organisms in nature or synthesized from renewable materials but needs polymerization. There are consisting of monomeric units that bond together through a covalent bond to obtain large molecules. A biopolymeric blend of sodium carboxymethyl cellulose/sodium alginate (Na-CMC/SA) film was prepared by the casting/solvent evaporation method. In addition to the molecular structure, the optical and molecular geometry of the collected films were characterized. XRD of binary blend investigated the interaction and miscibility among two biopolymers. FTIR of the blend spectrum explicated the conferring of the two polymer group’s vibrations. UV/Vis and optical studies appeared a peak in the binary at the wavelength (227 nm) which explained the high combination between two polymers. Molecular geometry clarifies the assignment of vibrational spectra of pure polymers which implied the important role of the (C=O) group as eventful regions for the two polymers. KEY WORDS: Sodium carboxymethyl cellulose, Sodium alginate, Na-CMC/SA, FTIR, XRD, UV/Vis Bull. Chem. Soc. Ethiop. 2022, 36(3), 707-716. DOI: https://dx.doi.org/10.4314/bcse.v36i3.19

show abstract

Effect of zinc oxide nanoparticles on physical properties of carboxymethyl cellulose/ poly (ethylene oxide) matrix

Cited by 28 publications

References 54 publications

Structural, optical, thermal, and dielectric properties of carboxymethyl cellulose/sodium alginate blend/lithium titanium oxide nanoparticles: Biocomposites for lithium‐ion batteries applications

Structural, optical, thermal, and dielectric properties of carboxymethyl cellulose/sodium alginate blend/lithium titanium oxide nanoparticles: Biocomposites for lithium‐ion batteries applications

Enhanced structural, optical, electrical properties and antibacterial activity of PEO/CMC doped ZnO nanorods for energy storage and food packaging applications

Molecular structure and optical attributes of (Na-CMC/SA) natural polymer blend

Contact Info

Product

Resources

About