1. A general strategy for template-free and low-cost synthesis of inorganic hollow spheres
- Author
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Peng Zhang, Yuanyuan Han, Klaus Leifer, Tao Qin, Fredrik Nikolajeff, Håkan Engqvist, and Ishtiaq Hassan Wani
- Subjects
Template free ,Materials science ,Magnesium ,General Chemical Engineering ,Barium fluoride ,Inorganic chemistry ,Strontium fluoride ,chemistry.chemical_element ,Barium ,02 engineering and technology ,equipment and supplies ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Phosphate ,01 natural sciences ,0104 chemical sciences ,chemistry.chemical_compound ,chemistry ,Fluorine ,SPHERES ,0210 nano-technology - Abstract
Inorganic hollow spheres have a great potential in many fields, such as calcium phosphate (Ca3(PO4)2) as carriers of active ingredients and local delivery. They are typically synthesized by the methods that reply on template-based strategies. However, the template residue and energy consumption during template removal are drawbacks. Currently developed template-free methods remain challenges such as time, cost and complicated procedures. In this paper, we introduce a general low-cost and template-free precipitation method with simple procedure. A series of inorganic hollow spheres, including calcium phosphate, calcium fluoride, strontium phosphate, strontium fluoride, barium phosphate and barium fluoride via magnesium were successfully synthesized, respectively. Based on these experimental results, a new model is proposed to explain the mechanism of the hollow inorganic spheres formation. This paper provides a general method to synthesize inorganic hollow spheres, which may have an important indication to other systems.
- Published
- 2017