Phase and morphology evolution of vaterite crystals in water/ethanol binary solvent | Zendy

Jin Dalai | Zendy; Wang Fei | Zendy; Yue Linhai | Zendy

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Phase and morphology evolution of vaterite crystals in water/ethanol binary solvent

Author(s) -

Jin Dalai,

Wang Fei,

Yue Linhai

Publication year - 2011

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.201000484

Subject(s) - vaterite , aragonite , calcite , chemistry , solvent , phase (matter) , metastability , mole fraction , morphology (biology) , crystal (programming language) , crystallography , chemical engineering , mineralogy , organic chemistry , computer science , engineering , programming language , biology , genetics

Keeping stability is important for metastable vaterite to be applied. In this work, crystal evolution of vaterite in water/ethanol binary solvent (WEBS) was investigated. Phase identification was confirmed by XRD measurement. It is found that the stability of vaterite is sensitive to the concentration of surplus CO 3 2‐ and the ethanol mole fraction in WEBS. The vaterite phase would transform to either aragonite or calcite decided by the surplus CO 3 2‐ ions or Ca 2+ ions, respectively. SEM observation shows that the polymorph evolution also induced the morphology change. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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