کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1265467 | 972222 | 2012 | 5 صفحه PDF | دانلود رایگان |
Droplets of several micrometers in size can be formed in aqueous solution by atomization under ultrasonic irradiation at 2 MHz. This phenomenon, known as atomization, is capable of forming fine droplets for use as a reaction field. This synthetic method is called SARM (sono atomization for reactive mixing). This paper reports on the synthesis of a novel amorphous calcium carbonate formed by SARM. The amorphous calcium carbonate, obtained at a solution concentration of 0.8 mol/dm3, had a specific surface area of 65 m2/g and a composition of CaCO3
• 0.5H2O as determined using thermogravimetric/differential thermal analysis (TG–DTA). Because the ACC had a lower hydrate composition than conventional amorphous calcium carbonate (ACC), the ACC synthesized in this paper was very stable at room temperature.
► This paper reports on the synthesis of amorphous calcium carbonate (ACC) by SARM (sono atomization for reactive mixing).
► The ACC had a specific surface area of 65 m2/g and a composition of CaCO3
• 0.5H2O.
► The ACC synthesized in this paper was very stable at room temperature.
Journal: Ultrasonics Sonochemistry - Volume 19, Issue 2, March 2012, Pages 325–329