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Morphologies of calcium carbonate crystallites grown from aqueous solutions containing polyethylene glycol
Author(s) -
Xie AnJian,
Zhang ChunYan,
Shen YuHua,
Qiu LingGuang,
Xiao PeiPei,
Hu ZhaoYang
Publication year - 2006
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200610706
Subject(s) - vaterite , polyethylene glycol , calcite , peg ratio , aqueous solution , calcium carbonate , crystallite , nucleation , fourier transform infrared spectroscopy , chemistry , scanning electron microscope , chemical engineering , nuclear chemistry , inorganic chemistry , crystallography , materials science , mineralogy , aragonite , organic chemistry , finance , composite material , engineering , economics
Calcium Carbonate has been precipitated from aqueous solutions containing different concentrations and different molecular weight of Polyethylene Glycol (PEG). The precipitations were analyzed by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT‐IR) and X‐ray diffraction (XRD). The results demonstrated that PEG has profound influence on the nucleation and crystal growth of CaCO 3 , under condition of low PEG6000 (refer to PEG M W =6000) concentration, it favored the formation of calcite, while high PEG6000 concentration promoted vaterite formation. Additionally, low molecular weight PEG can stabilize vaterite phase. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)