Sonochemical Synthesis of Zn3(PO4)2.4H2O and Zn3(PO4)2 Powders

2012 ◽  
Vol 506 ◽  
pp. 94-97 ◽  
Author(s):  
M. Sutapun ◽  
B. Boonchom ◽  
Naratip Vittayakorn
Keyword(s):  
Orthophosphoric Acid ◽  
Zinc Phosphate ◽  
Structural Characteristics ◽  
Synthesis Method ◽  
Sonochemical Method ◽  
X Ray Diffraction ◽  
Sonochemical Synthesis ◽  
X Ray ◽  
Ft Ir ◽  
Xrd Patterns

Zn3(PO4)2.4H2O, which is an important component of biomedical zinc phosphate cement, was synthesized from an aqueous solution of zinc oxide and orthophosphoric acid by the sonochemical method. This synthesis method yielded best results with respect to high purity and crystallinity. Structural characteristics of the compound were investigated by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and scanning electron microscopy (SEM). FT-IR spectra indicated the presences of different crystallographic PO43ion and H2O molecules for the Zn3(PO4)2.4H2O and Zn3(PO4)2structures. The resulting XRD patterns showed the purity phases of orthorhombic Zn3(PO4)2.4H2O and the monoclinic for its final decomposed Zn3(PO4)2product. The thermal stability, crystallite size, and plate-like microparticles of Zn3(PO4)2.4H2O and Zn3(PO4)2are different in this work from those in previous reports, which may be caused by the starting reagents and reaction condition for the sonochemical method.

New Synthesis Method of the Lamellar Zinc Phosphate and its Electrochemical Corrosion Inhibitions

2011 ◽  
Vol 415-417 ◽  
pp. 1806-1809
Author(s):  
Dong Ping Wei ◽  
Sheng Fu Wu ◽  
Zeng Wei Huang ◽  
Shao Mei Ma ◽  
An Ping Liao ◽  
...  
Keyword(s):  
Zinc Phosphate ◽  
Electrochemical Impedance ◽  
Structural Characteristics ◽  
Synthesis Method ◽  
Electrochemical Corrosion ◽  
Immersion Test ◽  
X Ray Diffraction ◽  
X Ray ◽  
New Synthesis ◽  
Lamellar Zinc

A new synthesis method namely hydrolysis precipitation was used to prepare Zn3(PO4)2•4H2O. Structural characteristics of products were investigated by X-ray Diffraction, scanning electron microscope and chemical analysis. The electrochemical corrosion inhibitions of title zinc phosphate were studied by electrochemical impedance of coating immersion test. The results show that the obtained product is a highly crystalline, micronized and lamellar Zn3(PO4)2•4H2O. Comparing with commercial zinc phosphate, the synthesized lamellar microcrystalline product has excellent anticorrosive property and dispersibility.

Synthesis, Characterization and Magnetism of Nanosized Copper Ferrite

2008 ◽  
Vol 368-372 ◽  
pp. 604-606 ◽  
Author(s):  
Wei Zhong Lv ◽  
Zhong Kuang Luo ◽  
Bo Liu ◽  
Xiang Zhong Ren ◽  
Hong Hua Cai ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Thermal Analysis ◽  
Copper Ferrite ◽  
Sonochemical Method ◽  
Thermal Gravimetric ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Ft Ir ◽  
Scanning Electron

Copper ferrite powders were successfully synthesized by sonochemical method. The resultant powders were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), FT-IR, differential thermal analysis-thermal gravimetric (DTA-TG), differential scanning calorimetry (DSC) and VSM. The particle saturation magnetization (Ms) is 66 emu/g and an intrinsic coercive force (iHc) is 2100 Oe when the precursor calcined at 950 °C for 15 h.

Synthesis and Characterization of HgSe Nanostructure Using a Novel Precursor

2013 ◽  
Vol 32 (2) ◽  
pp. 157-162 ◽  
Author(s):  
Mahdiyeh Esmaeili-Zare ◽  
Masoud Salavati-Niasari ◽  
Davood Ghanbari
Keyword(s):  
Electron Microscopy ◽  
Synthesis And Characterization ◽  
Sonochemical Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Mercury Selenide ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

AbstractMercury selenide nanostructures were synthesized from the reaction of N, N′-bis(salicylidene)propane-1,3-diamine mercury complex, (Hg(Salpn)) as a novel precursor, via sonochemical method. The effect of different surfactant on the morphology and particle size of the products was investigated. Products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy and X-ray energy dispersive spectroscopy (EDS).

One Step Synthesis of Graphene-Like Structures by Carbonization of some Carbohydrates in Molten Salt Media

2019 ◽  
Vol 59 ◽  
pp. 166-179 ◽  
Author(s):  
Betül Gürünlü ◽  
Mahmut Bayramoğlu
Keyword(s):  
Molten Salt ◽  
Photoelectron Spectroscopy ◽  
Synthesis Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hummers Method ◽  
Environmental Friendly ◽  
One Step ◽  
Xrd Patterns ◽  
Molten Salt System

Graphene is one of the most promising materials discovered in last years. It is usually synthesized by Hummers’ method requiring the usage of many chemicals. As an alternative to traditional methods, in this study a bottom-up synthesis method was developed from various saccharides such as starch, mannose, cellulose, fructose, arabinose, and xylose by carbonization at 600 °C to 800 °C in LiCl/KCl molten salt system. The proposed method is environmental friendly and economic. Graphene yields at 600 °C are higher than at 800 °C. Graphene products give peak at 2θ = 23° on the X-Ray Diffraction (XRD) patterns. As the temperature is increased, amorph structure is observed on the XRD patterns. Raman spectroscopy results show that intensity of D band peak over intensity of G band peak (ID/IG) values of graphene products synthesized from arabinose and cellulose at 600 °C, graphene from arabinose synthesized at 800 °C are 0.76, 0.65 and 0.85 respectively, which show that these products are few-layered. According to X-ray photoelectron spectroscopy (XPS) results, graphene products synthesized at 600 °C have higher carbon content than those synthesized at 800 °C.

Preparation of Nanosized Barium Ferrite Spinel by a Sonochemical Method

2008 ◽  
Vol 368-372 ◽  
pp. 607-609
Author(s):  
Bo Liu ◽  
Wei Zhong Lv ◽  
Zhong Kuang Luo ◽  
Xiang Zhong Ren ◽  
Hong Hua Cai ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Barium Ferrite ◽  
Sonochemical Method ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Ultrasound Radiation ◽  
Ft Ir ◽  
Scanning Electron ◽  
Ferrite Spinel

Nanosized barium ferrite spinel particles were prepared with the aid of ultrasound radiation by a precursor approach. A precursor was got by sonicating an aqueous solution of BaCl2, Fe (NO3)3·9H2O and urea firstly. Nanosized BaFe2O4 particles with a size of ca.40nm were prepared after the precursor was heated at 950 °C for 15 h. The nanosized barium ferrite particles and the precursor were characterized by powder X-ray diffraction, scanning electron microscopy, FT-IR and differential scanning calorimetry.

Sonochemical Synthesis and Luminescence Property of Monodispersed GdF3:Eu3+ Nanopeanuts

2011 ◽  
Vol 233-235 ◽  
pp. 1235-1238
Author(s):  
Ling Zhu ◽  
Xue Qiang Cao ◽  
Dao Wu Yang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Luminescence Property ◽  
Ambient Air ◽  
Sonochemical Method ◽  
X Ray Diffraction ◽  
Sonochemical Synthesis ◽  
X Ray ◽  
Highly Uniform ◽  
Scanning Electron

Highly uniform and monodisperse GdF3:Eu3+ nanopeanuts has been successfully prepared by a sonochemical method under ambient air without any template. The as-prepared GdF3:Eu3+ sample was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL) spectra.

Internal pressure effect on cathodoluminescence enhancement of ZnS:Mn2+ synthesized by a sealed vessel

2007 ◽  
Vol 22 (10) ◽  
pp. 2838-2844 ◽  
Author(s):  
B.J. Park ◽  
W.B. Im ◽  
W.J. Chung ◽  
H.S. Seo ◽  
J.T. Ahn ◽  
...  
Keyword(s):  
Synthesis Method ◽  
Solid State Reaction Method ◽  
X Ray Diffraction ◽  
Paramagnetic Resonance ◽  
X Ray ◽  
Synthesis Conditions ◽  
Epr Signal ◽  
Xrd Patterns ◽  
Electron Paramagnetic ◽  
Mn Concentration

ZnS:Mn2+ phosphors were synthesized by a modified solid-state reaction method. In the synthesis method, a sealed vessel is used, where heat and pressure are simultaneously utilized. The effects of various synthesis conditions such as temperature, Mn concentration, and pressure on the cathodoluminescence (CL) were investigated. Among them, pressure had an effect on CL property as much as others. It was observed that CL intensities of ZnS:Mn2+ phosphors increased with the increase of pressure and the best sample showed higher intensity than that of a commercial one by 180%. X-ray diffraction (XRD) and electron paramagnetic-resonance (EPR) were used to understand the enhancement. No change of XRD patterns was observed but the full width at half-maximum (FWHM) of the most intense cubic (111) peak of ZnS:Mn2+ decreased with the increase of pressure. EPR signal intensity of Mn2+ increased with the increase of pressure. The improved crystallinity and more substitution of Zn2+ with Mn metal were believed to be responsible for the enhancement.

scholarly journals Synthesis and characterization of (3-aminopropyl) triethoxysilane (APTES) functionalized zeolite AlPO-18

2021 ◽  
Vol 1195 (1) ◽  
pp. 012047
Author(s):  
L D Anbealagan ◽  
T L Chew ◽  
Y F Yeong ◽  
Z A Jawad ◽  
C D Ho
Keyword(s):  
Synthesis Method ◽  
Synthesis And Characterization ◽  
Vibration Band ◽  
X Ray Diffraction ◽  
Bending Vibration ◽  
Xrd Pattern ◽  
X Ray ◽  
Zeolite Structure ◽  
Ft Ir

Abstract Over the years, functionalization of zeolite is gaining popularity among researchers to further modify the properties of the zeolite for wide applications. The procedure of functionalization is crucial to ensure that the framework and structure of the zeolite would not be destroyed by the functionalization process. In this work, zeolite AlPO-18 was synthesized via hydrothermal synthesis method and functionalized by (3-Aminopropyl) triethoxysilane (APTES). The effect of the APTES functionalization on zeolite AlPO-18 was investigated in this work. Both unfunctionalized and silane-functionalized zeolite AlPO-18 were characterized using Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and Thermogravimetric analysis (TGA) for their properties. The morphology and the composition of the elements present in zeolite AlPO-18 and zeolite NH2-AlPO-18 were examined using Field Emission Scanning Electron Microscopy (FESEM) and Energy-Dispersive spectroscopy (EDX) respectively. The XRD pattern of NH2-AlPO-18 was similar to that of zeolite AlPO-18, however, the intensity of the peaks was lower compared to zeolite AlPO-18. Based on the FTIR spectra, the presence of N-H stretching and bending vibration band of aminosilane were observed in the NH2-AlPO-18 sample. According to FESEM images, the morphology of NH2-AlPO-18 was comparable to that of zeolite AlPO-18 even after functionalization, proving that functionalization of aminosilane on zeolite does not affect on the zeolite structure. Besides that, EDX proves the presence of 3.02 % of element N in the NH2-AlPO-18 sample which is absent in the zeolite AlPO-18 sample. All of the characterizations evinced the presence of aminosilane, APTES in the NH2-AlPO-18 sample.

SONOCHEMICAL SYNTHESIS AND MICROSTRUCTURE CHARACTERIZATION OF Fe3O4 AND ZnFe2O4 NANOCRYSTALLINES

2005 ◽  
Vol 19 (15n17) ◽  
pp. 2508-2513 ◽  
Author(s):  
JIANMIN ZHU ◽  
SHISONG HUANG ◽  
GUOBIN MA ◽  
NAIBEN MING
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Sonochemical Method ◽  
X Ray Diffraction ◽  
Sonochemical Synthesis ◽  
X Ray ◽  
Selected Area Electron Diffraction ◽  
Transmission Electron

By means of sonochemical method, Fe 3 O 4 and ZnFe 2 O 4 nanocrystallines can be synthesized from FeCl 2/ urea and ZnCl 2/ FeCl 2/ urea in water. The products were characterized by powder X-ray diffraction (XRD) and transmission electron microscopy (TEM) as well as selected area electron diffraction (SAED). Special attention was paid to the microstructure of the nanocrystallines using high-resolution transmission electron microscopy (HREM). Probable mechanisms for the sonochemical formation of Fe 3 O 4 and ZnFe 2 O 4 nanocrystallines are discussed.

Effect of Precursor on Sonochemical Synthesis of PbWO4 Crystals

2012 ◽  
Vol 184-185 ◽  
pp. 826-829
Author(s):  
Yong Gang Wang ◽  
Hai Yan Lin ◽  
Xiao Qian Zhang ◽  
Lin Lin Yang ◽  
Yu Jiang Wang ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Sonochemical Method ◽  
X Ray Diffraction ◽  
Sonochemical Synthesis ◽  
X Ray ◽  
Transmission Electron

A sonochemical method has been applied to prepared PbWO4 crystals by using different precursors. The as-prepared samples were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). It was found that the precursor played an important role in the synthesis of PbWO4 crystals. PbWO4 nanostructures with different morphologies, such as flower-like, rod-like, and dendrite-like, have been successfully obtained via a mild sonochemical method corresponding to the precursor PbCO3, Pb(NO3)2, and Pb(Ac)2, respectively.

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