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Creation of calcite hollow microspheres with attached bundles of aragonite needles
Author(s) -
Tang Hua,
Yu Jiaguo,
Zhao Xiufeng,
Ng Dickon H. L.
Publication year - 2008
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.200711081
Subject(s) - aragonite , calcite , superstructure , aqueous solution , precipitation , microsphere , chemistry , morphology (biology) , chemical engineering , molar ratio , mineralogy , polymer chemistry , crystallography , materials science , organic chemistry , catalysis , geology , paleontology , oceanography , physics , meteorology , engineering
Novel calcite hollow microspheres attached with bundles of aragonite needles have been synthesized via a simple precipitation reaction of aqueous solutions of CaClB 2B and NaB 2B COB 3B in the presence of MgP 2+P ions at room temperature. The experimental results revealed that an appropriate molar ratio of [MgP 2+P ]/[CaP 2+P ], pH value of the solution and aging time are crucial for the formation of the unusual hierarchical CaCOB 3B superstructure. A possible growth mechanism is proposed. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)