Synthesis and Preliminary Characterization of Modified 45s5 Bioglasses

2020 ◽  
Vol 65 (1-2) ◽  
pp. 19-25
Author(s):  
S. Ionita ◽  
◽  
K. Magyari ◽  
A.V. Sandu ◽  
V. Simon ◽  
...  
Keyword(s):  
Bone Tissue ◽  
Sol Gel ◽  
Morphological Characterization ◽  
Nominal Composition ◽  
Preliminary Characterization ◽  
Structure And Morphology ◽  
Potential Applications ◽  
Sol Gel Synthesis ◽  
Hydroxyapatite Phase

"The study is devoted to synthesis and preliminary structural and morphological characterization of modified 45S5 glasses, in (66-x)SiO2∙27CaO∙4P2O5∙3TiO2∙xAl2O3 system, with potential applications in dentistry. The composition of the sol-gel derived samples was verified with respect to their nominal composition. The effect of partial SiO2 replacement with Al2O3 on samples structure and morphology is investigated. It was established that the Ca/P ratio is diminished in Al2O3 containing samples and that an amorphous hydroxyapatite phase similar to hydroxyapatite reported for bone tissue is formed. Keywords: bioglasses; sol-gel-synthesis; XRD; SEM; EDX. "

Sol-gel Lithium Borophosphates

1999 ◽  
Vol 14 (4) ◽  
pp. 1510-1515 ◽  
Author(s):  
A. F. Ali ◽  
P. Mustarelli ◽  
E. Quartarone ◽  
C. Tomasi ◽  
P. Baldini ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Sol Gel ◽  
Heat Treatments ◽  
Nominal Composition ◽  
Composition Triangle ◽  
Phosphorus Precursor ◽  
Sol Gel Synthesis ◽  
Rich Side

In this paper we present sol-gel synthesis and thermal and structural characterization of some lithium borophosphates. The as-prepared samples are mostly partially crystalline, and densification heat treatments at 500 °C cause samples to crystallize. In the phosphorus-rich part of the composition triangle we have lithium excess with respect to the nominal composition, which is likely due to the low reactivity of the phosphorus precursor. On the boron-rich side, in contrast, lithium losses are found which probably occur during syneresis.

The Ferroelectric and Electrical Properties of CaBi4Ti4O15 Thin Films Prepared by Sol-Gel Technology

2011 ◽  
Vol 239-242 ◽  
pp. 891-894 ◽  
Author(s):  
Tsung Fu Chien ◽  
Jen Hwan Tsai ◽  
Kai Huang Chen ◽  
Chien Min Cheng ◽  
Chia Lin Wu
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Sol Gel ◽  
Morphological Characterization ◽  
Experimental Result ◽  
X Ray Diffraction ◽  
Solution Deposition ◽  
Capacitance Voltage ◽  
Preferential Crystal Orientation

In this study, thin films of CaBi4Ti4O15with preferential crystal orientation were prepared by the chemical solution deposition (CSD) technique on a SiO2/Si substrate. The films consisted of a crystalline phase of bismuth-layer-structured dielectric. The as-deposited CaBi4Ti4O15thin films were crystallized in a conventional furnace annealing (RTA) under the temperature of 700 to 800°C for 1min. Structural and morphological characterization of the CBT thin films were investigated by X-ray diffraction (XRD) and field-emission scanning electron microscope (FE-SEM). The impedance analyzer HP4294A and HP4156C semiconductor parameters analyzer were used to measurement capacitance voltage (C-V) characteristics and leakage current density of electric field (J-E) characteristics by metal-ferroelectric-insulator- semiconductor (MFIS) structure. By the experimental result the CBT thin film in electrical field 20V, annealing temperature in 750°C the CBT thin film leaks the electric current is 1.88x10-7A/cm2and the memory window is 1.2V. In addition, we found the strongest (119) peak of as-deposited thin films as the annealed temperature of 750°C

Sol–Gel Synthesis and Micro-Raman Characterization of ε-Fe2O3 Micro- and Nanoparticles

2016 ◽  
Vol 28 (2) ◽  
pp. 511-518 ◽  
Author(s):  
J. López-Sánchez ◽  
A. Serrano ◽  
A. Del Campo ◽  
M. Abuín ◽  
O. Rodríguez de la Fuente ◽  
...  
Keyword(s):  
Sol Gel ◽  
Sol Gel Synthesis ◽  
Raman Characterization

scholarly journals Microwave treated sol–gel synthesis and characterization of hybrid ZnS–RGO composites for efficient photodegradation of dyes

2017 ◽  
Vol 41 (4) ◽  
pp. 1723-1735 ◽  
Author(s):  
Lellala Kashinath ◽  
Keerthiraj Namratha ◽  
Shivanna Srikantaswamy ◽  
Ajayan Vinu ◽  
Kullaiah Byrappa
Keyword(s):  
Electron Transfer ◽  
Photocatalytic Activity ◽  
Sol Gel ◽  
Charge Recombination ◽  
Synthesis And Characterization ◽  
Excellent Photocatalytic Activity ◽  
Sol Gel Synthesis

Excellent photocatalytic activity by highly photo-responsive electron transfer from ZnS–RGO, and RGO acts as an electron reservoir and effectively suppresses charge recombination.

Mo-doped BiVO4 thin films – high photoelectrochemical water splitting performance achieved by a tailored structure and morphology

2017 ◽  
Vol 1 (8) ◽  
pp. 1830-1846 ◽  
Author(s):  
Martin Rohloff ◽  
Björn Anke ◽  
Siyuan Zhang ◽  
Ulrich Gernert ◽  
Christina Scheu ◽  
...  
Keyword(s):  
Thin Films ◽  
Water Splitting ◽  
Sol Gel ◽  
Surface Recombination ◽  
Photoelectrochemical Water Splitting ◽  
Transfer Efficiency ◽  
Hole Transfer ◽  
Structure And Morphology ◽  
Sol Gel Synthesis ◽  
Reduced Surface

Facile sol–gel synthesis of Mo:BiVO4 thin films with optimized morphology results in reduced surface recombination and enhanced hole transfer efficiency.

Sign in / Sign up

Export Citation Format

Share Document