Green synthesis of calcium carbonate with unusual morphologies in the presence of fruit extracts

CHENGLI YAO ^[1] ; ANJIAN XIE ^[1] ; YUHUA SHEN ^[1] ; JINMIAO ZHU ^[2] ; TENGJIAO LI ^[2]
1. [1] Anhui University
  
  Anhui University
  
  China
2. [2] Hefei Normal University
  
  Hefei Normal University
  
  China
Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 58, Nº. 4, 2013, págs. 2235-2238
Idioma: inglés
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Resumen
- In the present investigation, we reported a novel green strategy for the biological synthesis of calcium carbonate crystals using water-soluble polysaccharides extracted from the apple and pear. The resultant crystals were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, and X-ray powder diffractometry (XRD). The results showed that water-soluble polysaccharides as a soft template were easy to induce calcium carbonate with unusual morphologies (such as straw bundles-like). Based on the time-dependent growth of CaCC3 particles, possible mechanisms were proposed for the formation of straw bundle-like CaCC3 microspheres with secondary structures in the presence of water-soluble polysaccharides.