Mechanical and UV absorption behavior of zinc oxide nanoparticles: reinforced poly(vinyl alcohol-g-acrylonitrile) nanocomposite films

2017 ◽  
Vol 74 (10) ◽  
pp. 4119-4141 ◽  
Author(s):  
Shikha Chouhan ◽  
A. K. Bajpai ◽  
J. Bajpai ◽  
R. Katare ◽  
S. J. Dhoble
Keyword(s):  
Zinc Oxide ◽  
Vinyl Alcohol ◽  
Zinc Oxide Nanoparticles ◽  
Uv Absorption ◽  
Nanocomposite Films ◽  
Poly Vinyl Alcohol ◽  
Oxide Nanoparticles

scholarly journals Preparation, Characterization and Photocatalytic Activity of La-Doped Zinc Oxide Nanoparticles

Materials ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1195 ◽  
Author(s):  
Loan T. T. Nguyen ◽  
Lan T. H. Nguyen ◽  
Anh T. T. Duong ◽  
Bui Duc Nguyen ◽  
Nguyen Quang Hai ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Zinc Oxide Nanoparticles ◽  
Combustion Method ◽  
Poly Vinyl Alcohol ◽  
Oxide Nanoparticles ◽  
Visible Absorption ◽  
X Ray ◽  
La Doped

Lanthanum (La)-doped zinc oxide nanoparticles were synthesized with different La concentrations by employing a gel combustion method using poly(vinyl alcohol) (PVA). The as-synthesized photocatalysts were characterized using various techniques, including X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray analysis (EDX), photoluminescence (PL) spectroscopy, and UV–visible absorption spectroscopy. The average size of ZnO nanoparticles decreased from 34.3 to 10.3 nm with increasing concentrations of La, and the band gap, as evaluated by linear fitting, decreased from 3.10 to 2.78 eV. Additionally, it was found that the photocatalytic activity of doped samples, as investigated by using methyl orange dye under visible lights, improved in response to the increase in La concentration. The decomposition of methyl orange reached 85.86% after 150 min in visible light using La0.1Zn0.9O as the photocatalyst.

scholarly journals Preparation and Characterization of Zinc Oxide (Zno)/Polymethyl Methacrylate (PMMA) Nanocomposites

2021 ◽  
Vol 04 (04) ◽  
Author(s):  
Jayashree Bagawade ◽  
Keyword(s):  
Zinc Oxide ◽  
Methyl Methacrylate ◽  
Zinc Oxide Nanoparticles ◽  
Nanocomposite Films ◽  
Oxide Nanoparticles ◽  
X Ray Diffraction ◽  
X Ray ◽  
Poly Methyl Methacrylate ◽  
Absorption Measurements

A series of novel zinc oxide / Poly (methyl methacrylate) nanocomposite films with different ZnO contents were prepared through inclusion of pre-synthesized zinc oxide nanoparticles. The physical composition and morphology of the as-prepared nanocomposites were studied by XRD and TEM. The TEM analyses revealed that the zinc oxide nanoparticles have a particle size of ~3–5 nm. X-ray diffraction proved the presence of the amorphous PMMA in the nanocomposites. The intermolecular interactions within the polymer nanocomposites were explored by FTIR and XRD. FTIR spectra confirmed the dispersion of the zinc oxide nanoparticles in the Poly (methyl methacrylate) i.e. PMMA matrices. The UV-Vis absorption measurements of the ZnO/PMMA nanocomposites proved their potential optical properties.

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