Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6012
Title: Rice-like hollow nano-CaCO3 synthesis
Authors: Ülkeryıldız, Eda
Kılıç, Sevgi
Özdemir, Ekrem
Keywords: Ca(OH)2
CaCO3
Calcium carbonate
Carbon dioxide
Zeta potential
Hollow
Stabilization
Issue Date: 15-Sep-2016
Publisher: Elsevier Ltd.
Source: Ülkeryıldız, E., Kılıç, S., and Özdemir, E. (2016). Rice-like hollow nano-CaCO3 synthesis. Journal of Crystal Growth, 450, 174-180. doi:10.1016/j.jcrysgro.2016.06.032
Abstract: We have shown that Ca(OH)2 solution is a natural stabilizer for CaCO3 particles. We designed a CO2 bubbling crystallization reactor to produce nano-CaCO3 particles in homogenous size distribution without aggregation. In the experimental set-up, the crystallization region was separated from the stabilization region. The produced nanoparticles were removed from the crystallization region into the stabilization region before aggregation or crystal growth. It was shown that rice-like hollow nano-CaCO3 particles in about 250 nm in size were produced with almost monodispersed size distribution. The particles started to dissolve through their edges as CO2 bubbles were injected, which opened-up the pores inside the particles. At the late stages of crystallization, the open pores were closed as a result of dissolution-recrystallization of the newly synthesized CaCO3 particles. These particles were stable in Ca(OH)2 solution and no aggregation was detected. The present methodology can be used in drug encapsulation into inorganic CaCO3 particles for cancer treatment with some modifications.
URI: http://doi.org/10.1016/j.jcrysgro.2016.06.032
http://hdl.handle.net/11147/6012
ISSN: 0022-0248
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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