SHAPE EVOLUTION OF STRONTIUM CARBONATE ARCHITECTURES USING NATURAL GUMS AS CRYSTAL GROWTH MODIFIERS

B. Sreedhar, M. Sulochana, Ch. Satya Vani, D. Keerthi Devi, N. V. Subba Naidu
2013
Strontium carbonate architectures assembled from nanorods are successfully synthesized at room temperature and screw capped method at 100 °C. Our experiments show that the protocol followed for the synthesis of SrCO3 as well as the concentration of various gums used, play an important role in the size and morphology of SrCO3. Here in, we obtained aragonite nanorod aggregates with unusual morphologies via transformation of metal carbonates at different conditions using natural gums as additives.
more » ... gums as additives. A rational mechanism based on the oriented self-assembly of SrCO3 nuclei is proposed for the formed architectures. The crystals undergo an interesting morphology changes and have been well characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Thermogravimetric analysis (TGA) and Fourier Transform Infrared spectroscopy (FT-IR) techniques. This method is simple, low-cost and environmentally friendly route for the synthesis of SrCO3 architectures with different morphologies.
doi:10.17628/ecb.2014.3.234-239 fatcat:bqhgfsd7vzhvvp55p3lqa3w544