Author/Authors
Li، نويسنده , , Ge and Li، نويسنده , , Zenghe and Ma، نويسنده , , Hongwen، نويسنده ,
DocumentNumber
3268657
Title Of Article
Synthesis of aragonite by carbonization from dolomite without any additives
شماره ركورد
10086
Latin Abstract
A simple carbonization method was developed to synthesize rod-like aragonite in CaCl2-NH4Cl solution prepared from dolomite. Scanning electron microscopy and X-ray diffraction were used to characterize the morphology and crystal structure of the aragonite produced. The influences of carbonization time and temperature and aging time on the morphology and polymorph of the precipitated CaCO3 particles were investigated. The aragonite was obtained at room temperature by carbonization for 0.5 h without any additives and aging for 12 h. Aragonite rods with a length of 2.5–3 μm, a width of 0.3–0.4 μm, and an aspect ratio of 6–10 can be synthesized. The mechanism of the phase transformation from calcite to aragonite is also discussed.
From Page
25
NaturalLanguageKeyword
carbonization , Calcium carbonate , Rod-like , Aragonite , dolomite
JournalTitle
Studia Iranica
To Page
31
To Page
31
Link To Document