Sonochemical Synthesis and Characterization of Bismuth Aluminate Nanocrystals

2012 ◽  
Vol 490-495 ◽  
pp. 3522-3526
Author(s):  
Zhi Fu Wu ◽  
Su Juan Li

Bismuth aluminate is a kind of antacid medicine which is used to treat peptic ulceration and nervous dyspepsia. In our experiment, a simple solution strategy via supersonic method for the synthesis of spherical bismuth aluminate nanoparticles at room temperature is presented. During the procedure, bismuth aluminate was directly precipitated from the solution in the ultrasonic syringe under strong alkaline condition and its chemical empirical formula was defined by inductively coupled plasma(ICP) analysis, element analyzer(EA) and analysis analysis. XRD, FTIR and TEM, have been employed to characterize the obtained nanocrystals. Preparative parameters, such as the pH value, drying temperature and the sonication time were optimized to obtain Bi2(Al2O4)3•10H2O nanomaterials with considerable yield, uniform shape and narrow size distributions.

2014 ◽  
Vol 29 (6) ◽  
pp. 1132-1137 ◽  
Author(s):  
Lucia D'Ulivo ◽  
Lu Yang ◽  
Yong-Lai Feng ◽  
John Murimboh ◽  
Zoltán Mester

Accurate quantitation and characterization of organometals are successfully achieved by splitting the gas chromatography (GC) flow to both an electron ionization mass spectrometer (EIMS) and an inductively coupled plasma mass spectrometer (ICPMS).


Archaeometry ◽  
2004 ◽  
Vol 46 (1) ◽  
pp. 35-46 ◽  
Author(s):  
D. J. Kennett ◽  
A. J. Anderson ◽  
M. J. Cruz ◽  
G. R. Clark ◽  
G. R. Summerhayes

2018 ◽  
Vol 941 ◽  
pp. 21-26
Author(s):  
Gloria Basanta ◽  
Ana L. Rivas ◽  
Ervis Díaz ◽  
Carlos Parra

The present work has been undertaken to assess the evolution of dissolution process of large dendritic precipitates in a V-Nb-Ti microalloyed steel. The study was performed by reheating the samples at 1250°C, simulating the industrial reheating practices at laboratory scale and in situ, following industrial profile; afterwards the samples were quenched in 10%NaCl aqueous solution. The characterization of the material was carried out by scanning electron microscopy accompanied with dispersive energy spectrometry, and chemical analysis by inductively coupled plasma optical emission spectrometry. The results showed a partial dissolution of dendritic precipitates. This process ocurred by a progressive dissolving the Nb-rich shells formed over cuboidal particles and primary arm of well-faceted dendritic precipitates, and by fragmentation and spheroidization of secondary branches. These processes gave rise to spherical Nb rich precipitates and cuboidal particles at the reheating conditions used in this study. Both type of particles contain vanadium.


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