✦ LIBER ✦
Creation of calcite hollow microspheres with attached bundles of aragonite needles
✍ Scribed by Hua Tang; Jiaguo Yu; Xiufeng Zhao; Dickon H. L. Ng
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 410 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0232-1300
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✦ Synopsis
Abstract
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)