scholarly journals Study Structural properties of Nanocomposite (polyvinyl Alcohol\ (CdO/NiO) via Sol-Gel Method

2021 ◽  
Author(s):  
Amatalkareem Mohammed Al-Jezbi
Keyword(s):  
Polyvinyl Alcohol ◽  
Structural Properties ◽  
Sol Gel ◽  
Cadmium Oxide ◽  
Antibacterial Activities ◽  
Oxide Mixture ◽  
Gel Method ◽  
Sol Gel Method ◽  
Diffraction Patterns ◽  
Cracking Process

Abstract This study deals with the synthesis of some physical properties of (CdO/NiO) nanocomposite via Sol-Gel method and their antibacterial activities. The NiO and CdO nanoxides as well as the CdO/NiO oxide mixture were prepared in five samples with different concentrations where the ratio of CdO/NiO was [(1: 0), (3: 1), (1: 1), (1: 3), (0: 1)], by using the gel solution by means of a polyvinyl alcohol solution ( PVA ). The samples were platelimb at (500̊C) for three hours. The structural properties of the prepared oxides resulting from the cracking process were studied. The XRD results showed the presence of pure cadmium oxide diffraction patterns in the sample (S 1 ) as well as pure nickel oxide in the sample (S 5 ), and confirmed the presence of the CdO / NiO oxide mixture in the samples (S 2 , S 3 , S 4 ). The results of XRD also showed, through calculations, that the specific surface area increased with increasing granular size and decreased with decreasing granular size. XRD calculations also showed that the intensity of eruptions decreased as the granular volume increased and, inversely, increased with decreasing granular size.

Structural Properties of Silicon Oxycarbide Powders Obtained by SOL-GEL Method

1999 ◽  
Vol 2-6 ◽  
pp. 411-416
Author(s):  
H. Brequel ◽  
G.D. Sorarù ◽  
Florence Babonneau ◽  
Dj. Bahloul-Hourlier ◽  
Stefano Enzo
Keyword(s):  
Structural Properties ◽  
Sol Gel ◽  
Silicon Oxycarbide ◽  
Gel Method ◽  
Sol Gel Method

Preparation and in vitro osteogenic, angiogenic and antibacterial properties of cuprorivaite (CaCuSi4O10, Cup) bioceramics

RSC Advances ◽  
2016 ◽  
Vol 6 (51) ◽  
pp. 45840-45849 ◽  
Author(s):  
Tian Tian ◽  
Chengtie Wu ◽  
Jiang Chang
Keyword(s):  
Wound Healing ◽  
Sol Gel ◽  
Antibacterial Properties ◽  
Antibacterial Activities ◽  
Gel Method ◽  
Sol Gel Method

Cuprorivaite firstly synthesized by sol–gel method with angiogenic and antibacterial activities for wound healing application.

Structural, Ferroelectric, Pyroelectric, and Dielectric Study of Bi0.5Na0.5TiO3 Ceramics synthesized with Precursors Obtained by Sol-Gel Method doped with Lanthanum

2021 ◽  
Author(s):  
José de Jesus Serralta-Macías1 ◽  
Francisco de Paula Calderón-Piñar ◽  
Osmany García Zaldivar ◽  
Daniel Olguin ◽  
jose martin yañez limon
Keyword(s):  
Ferroelectric Properties ◽  
Sol Gel ◽  
Rhombohedral Phase ◽  
Sodium Titanate ◽  
Dielectric Study ◽  
Scanning Calorimetry ◽  
Gel Method ◽  
Sol Gel Method ◽  
Diffraction Patterns ◽  
Ferroelectric Hysteresis

Abstract In this work, the ferroelectric, pyroelectric and dielectric properties of La-doped bismuth sodium titanate ceramics (BNLT) using amounts from 0 to 6.7 at.% La were studied. The precursor powders used to make dense BNLT ceramics were obtained by the sol-gel method using the acetic acid route. All samples were calcined at 700°C for 1hr and sintered at 1150°C for 30 min in an encapsulated crucible to avoid Na and Bi volatilization, obtaining relative densities equal or higher than 94%. The obtained X-ray diffraction patterns typical of the perovskite structure, confirm the incorporation of lanthanum into the lattice, evolving from rhombohedral phase to a mixture of rhombohedral and cubic structure for higher concentrations. Thermogravimetry (TG) and Differential Scanning Calorimetry (DSC) results indicate that the crystallization of precursors powders of BNT takes place between 500 and 700°C. Additionally, the Scanning Electron Microscopy (SEM) micrographs reveal a decrement of grain size from 4.5 to 0.5 μm with increasing La content. The ferroelectric hysteresis curves show that the best ferroelectric properties were obtained for BNT 1.3% La, where the obtained values of remnant polarization and coercive field were Pr=29 μC/cm2 and Ec=39 kV/cm respectively. Also, at this concentration, the pyroelectric response shows the higher value, 4 times the pyroelectric signal of the pure BNT.

Structural properties of Pd catalysts supported on Al2O3–La2O3 prepared by sol–gel method

1998 ◽  
Vol 17 (3) ◽  
pp. 221-231 ◽  
Author(s):  
N.E Bogdanchikova ◽  
S Fuentes ◽  
M Avalos-Borja ◽  
M.H Farı́as ◽  
A Boronin ◽  
...  
Keyword(s):  
Structural Properties ◽  
Sol Gel ◽  
Pd Catalysts ◽  
Gel Method ◽  
Sol Gel Method

Effect of Cobalt Content on the Structural Properties of Zirconia Prepared by Sol-Gel Method

2020 ◽  
Vol 1000 ◽  
pp. 227-232
Author(s):  
Nurhayati Indah Ciptasari ◽  
Adri Nora ◽  
Lutviasari Nuraini ◽  
Lusiana ◽  
Nono Darsono ◽  
...  
Keyword(s):  
Structural Properties ◽  
Sol Gel ◽  
Cobalt Content ◽  
Secondary Phase ◽  
Xrd Analysis ◽  
Weight Percent ◽  
Sem Images ◽  
Monoclinic Crystal ◽  
Gel Method ◽  
Sol Gel Method

Zirconia (ZrO2) powders doped with cobalt were prepared by sol-gel method using inorganic salt of zirconium (IV) chloride (ZrCl4) as precursor. The amount of cobalt was varied in the range of 4–16% weight percent to study the effect to structural properties. X-ray diffraction (XRD) analysis suggested the resulting phases were zirconium oxide (Baddeleyite) with monoclinic crystal system along with cobalt oxide as secondary phase. The increasing cobalt content caused the XRD peaks to shift into lower angle due to substitution of Zr atom to smaller Co atom in crystal lattice. Scanning electron microscope (SEM) images showed the samples with higher Co content had smoother surface. Generally, the microstructures of Co doped zirconia powders consisted of large agglomerates with small particles on the surface.

Structural Properties of Silicon Oxycarbide Powders Obtained by SOL-GEL Method

1999 ◽  
Vol 312-314 ◽  
pp. 411-416 ◽  
Author(s):  
H. Brequel ◽  
G.D. Sorarù ◽  
Florence Babonneau ◽  
Dj. Bahloul-Hourlier ◽  
Stefano Enzo
Keyword(s):  
Structural Properties ◽  
Sol Gel ◽  
Silicon Oxycarbide ◽  
Gel Method ◽  
Sol Gel Method
Sign in / Sign up

Export Citation Format

Share Document