It is reported the synthesis of CaCO3 vaterite as stable nanoparticles and submicron-sized by a simple andudrelatively rapid procedure. XRD, SEM and FTIR techniques have been used to characterize the precipitatedudproducts. The synthesis is based on chemical precipitation of inorganic salt precursors, calcium nitrate tetrahydrateudand sodium bicarbonate, and using the disaccharide sucrose as an additive in aqueous medium. The roleudof the disaccharide sucrose is to control the vaterite precipitation after nucleation and growth. It has been foundudthat an increase in sugar concentration promotes the crystal precipitation of vaterite with spherulitic morphology,udas revealed by SEM, and changed the surface of the precipitated particles. There is a significant differenceudbetween CaCO3 precipitation in the absence and presence of sucrose. Addition of 0% of sucrose leads toud83% of calcite as identified by XRD methods. In contrast, addition of 67% of sucrose in aqueous medium producesud100% vaterite. The present results may be useful to provide a quick, simple, inexpensive and novel methodudfor the controlled synthesis of new advanced biomaterials based on vaterite particles without hazardous chemicalsudand inert atmosphere, with great possibilities for industrial scale production
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