Synthesis, characterization and optical properties of hybrid PVA–ZnO nanocomposite: A composition dependent study

Hemalatha, K.; Rukmani, K.; Suriyamurthy, N.; Nagabhushana, B.M.

doi:10.1016/j.materresbull.2013.12.055

Cited by 173 publications

(50 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The band at 915 cm -1 has been related to syndiotactic structure and is assigned to the CH 2 rocking vibration. The bands at 836 cm -1 and 682 cm -1 are assigned to Ө(C-C) stretching vibration and out of plane OH bending,respectively.The band at 1724 cm -1 of the carbonyl group is due to absorption of the residual acetate groups during the manufacturing of PVA from hydrolysis of polyvinyl acetate [32]. The Fig.…”

Section: X-ray Diffractionmentioning

confidence: 96%

Characterization and DC Conductivity of Novel ZnO Doped Polyvinyl Alcohol (PVA) Nano-Composite Films

Srikanth¹,

Sridhar²,

Prasad³

et al. 2016

j adv phys

View full text Add to dashboard Cite

DC conductivity of PVA-CuO nano-composite films have been studied in the present work. The composites were prepared by solution-casting technique. The prepared PVA-CuO composites have been characterized by Xray diffraction (XRD) analysis, Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDXS); which confirmed the presence of CuO in polyvinyl alcohol and the formation of the composite. DC conductivity studies show thermally activated behavior of all the composites. The conductivity was found to increase with the increase in temperature indicating the semiconducting behavior of all the compositions. The activation energy increases as the content of CuO nanoparticles increases from 1 to 4 in wt% in the PVA-CuO nano-composites. Maximum conductivity was observed in 4 wt% of CuO in polyvinyl alcohol.

show abstract

Section: X-ray Diffractionmentioning

confidence: 96%

Characterization and DC Conductivity of Novel ZnO Doped Polyvinyl Alcohol (PVA) Nano-Composite Films

Srikanth¹,

Sridhar²,

Prasad³

et al. 2016

j adv phys

View full text Add to dashboard Cite

show abstract

“…With the incorporation of 2 mass% of PSMZ to the PA matrix, the PL emission intensity of PAPN 2 increased compared with the neat PA, and a slight blue shift observed. According to previous works, the main PL emission of ZnO was appeared at 390 nm . Therefore, it can be concluded that the presence of ZnO nanoparticles led to increase the main PL emission of PAPN 2, compared with the neat PA.…”

Section: Characterization Of Pa/zno Nanocompositesmentioning

confidence: 58%

New nanocomposites based on polyamide containing imine groups reinforced with functionalized polyethyleneimine‐modified ZnO nanoparticles; fabrication, characterization and lead ion adsorption studies

2018

View full text Add to dashboard Cite

New polyamide (PA)/ZnO nanocomposites were prepared using polyethyleneimine (PEI) surface‐modified ZnO nanoparticles (PSMZ) by solution mixing method. PSMZ was prepared via imine linkages between PEI and silane‐amine functionalized ZnO nanoparticles. Multifunctional PA containing imine groups was synthesized by direct polycondensation reaction and used as a polymer matrix. X‐ray diffraction (XRD) and field‐emission scanning electron microscopy results showed that the ZnO nanoparticles were uniformly distributed in the PA matrix. The UV–Vis spectra of the nanocomposites exhibited reduction in absorption intensities due to high interactions between functional groups of PSMZ and PA. The thermogravimetric analysis results exhibited that the temperature at 10 mass% loss (T10) increased from 314 to 352°C for PA nanocomposite containing 6 mass% of PSMZ, as well as enhancement of char residue compared with the neat PA. Also, the synthesized PA and corresponding nanocomposites were used as effective adsorbent for the lead ions removal from aqueous solution, which the results showed up to 100% removal efficiency. POLYM. COMPOS., 40:2602–2616, 2019. © 2018 Society of Plastics Engineers

show abstract

“…. The pure PVA showed a definite characterized peak at 2 θ = 19.6° as a result of the reflection plane of PVA, another weak peak was observed at 2 θ = 41.2°, which represents the semicrystalline nature of PVA and presence of crystalline and amorphous regions . With addition of the ZnO nanoparticles, the intensity of the peaks was slightly increased, suggesting an increase in the degree of crystallinity of the composites.…”

Section: Resultsmentioning

confidence: 95%

Antibacterial Activity of Cotton Fabrics Treated With Poly (Vinyl Alcohol)/ZnO Nanocomposites, Photocatalyzed by UV Irradiation

Hassan

Ali

2017

Vinyl Additive Technology

View full text Add to dashboard Cite

Cotton fabrics with antimicrobial properties were prepared by treatment with aqueous solutions of poly vinyl alcohol/zinc oxide (PVA/ZnO) nanocomposites and subsequently exposed to UV radiation. The ZnO nanoparticles, PVA/ZnO nanocomposite films, and treated cotton fabrics were characterized by transmission electron microscopy, Fourier transform infrared, X-ray diffraction, scanning electron microscopy, and thermogravimetric analysis. The antibacterial finishing of the treated cotton fabrics was evaluated toward gram-positive and gram-negative bacteria. J. VINYL ADDIT. FIG. 3. The X-ray diffraction patterns of pure poly vinyl alcohol and poly vinyl alcohol/zinc oxide nanocomposite films. FIG. 4. Scanning electron microscopy of (a) untreated cotton fabrics, (b) poly vinyl alcohol/zinc oxide nanocomposite treated samples.

show abstract

Synthesis, characterization and optical properties of hybrid PVA–ZnO nanocomposite: A composition dependent study

Cited by 173 publications

References 47 publications

Characterization and DC Conductivity of Novel ZnO Doped Polyvinyl Alcohol (PVA) Nano-Composite Films

Characterization and DC Conductivity of Novel ZnO Doped Polyvinyl Alcohol (PVA) Nano-Composite Films

New nanocomposites based on polyamide containing imine groups reinforced with functionalized polyethyleneimine‐modified ZnO nanoparticles; fabrication, characterization and lead ion adsorption studies

Antibacterial Activity of Cotton Fabrics Treated With Poly (Vinyl Alcohol)/ZnO Nanocomposites, Photocatalyzed by UV Irradiation

Contact Info

Product

Resources

About