Effects of Aging Time on The Formation of Calcium Carbonate Polymorphs

Öz

In this work, effects of aging time, initial reactant concentration, reactant feeding rate and a polymeric

additive on calcium carbonate crystallization were investigated by wet precipitation. The precipitated phase

was aged at specified times. Then the obtained crystal forms were characterized by Fourier Transform Infrared

Spectroscopy (FT-IR) and X-Ray Powder Diffraction (XRD) methods. Results showed that the polymorph of the

calcium carbonate crystals was affected by aging time and additive used.

Anahtar Kelimeler

• Calcium carbonate,calcit,crystallization,polymorph,vaterite

Kalsiyum Karbonat Polimorflarının Oluşumuna Yaşlandırma Süresinin Etkisi

Öz

Bu çalışmada, yaşlandırma süresinin, başlangıç reaktan konsantrasyonunun, reaktan besleme hızının

ve katkı maddesinin kalsiyum karbonat kristalizasyonuna etkisi ıslak çöktürme yöntemi ile incelenmiştir.

Kristalizasyon deneylerinde çöken faza belirlenen sürelerde yaşlandırma işlemi uygulanmış ve elde edilen kristaller

Fourier Dönüşümlü Kızılötesi Spektroskopi (FT-IR) ve X-Işınları Toz Difraksiyon (XRD) metotları ile karakterize

edilmiştir. CaCO3 kristallerinin polimorflarının oluşumunda yaşlandırma süresinin ve kullanılan polimerik katkı

maddesinin etkili olduğu görülmüştür.

Kaynakça

1. Andreassen JP, 2005. Formation mechanism and morphology in precipitation of vaterite-nano-aggregation or crystal growth?. J. Crystal Growth, 274: 256–264.
2. Butler MF, Glaser N, Weaver AC, Kirkland M, Heppenstall-Butler M, 2006. Calcium carbonate crystallization in the presence of biopolymers. Crystal Growth&Design, 6 (3): 781-794.
3. Chen J, Xiang L, 2009. Controllable synthesis of calcium carbonate polymorphs at different temperatures. Powder Technology, 189: 64–69.
4. Gopi S, Subramanian VK, Palanisamy K, 2013. Aragonite–calcite–vaterite: A temperature influenced sequential polymorphic transformation of CaCO3 in the presence of DTPA. Materials Research Bulletin 48: 1906–1912.
5. Han YS, Hadiko G, Fuji M, Takahashi M, 2006. Crystallization and transformation of vaterite at controlled pH. J. Crystal Growth, 289: 269–274.
6. Hariharan M, Varghese N, Cherian AB, Sreenivasan PV, Paul J, Antony AKA, 2014. Synthesis and characterisation of CaCO3 (calcite) nano particles from cockle shells using chitosan as precursor. International Journal of Scientific and Research Publications, 4 (10): 1-5.
7. Kawano J, Shimobayashi N, Kitamura M, Shinoda K, Aikawa N, 2002. Formation process of calcium carbonate from highly supersaturated solution, J.Crystal Growth, 237–239: 419–423.
8. Kirboga S, Öner M, Dogan Ö, 2016. Box-Behnken experimental design for the production of precipitated calcium carbonate. Pure Appl. Chem., 88(10-11): 961–968.

9. Li C, Botsaris GD, Kaplan DL, 2002. Selective in vitro effect of peptides on calcium carbonate crystallization. Crystal Growth&Design, 2 (5): 387-393.
10. Manoli F, Kanakis J, Malkaj P, Dalas E, 2002. The effect of aminoacids on the crystal growth of calcium carbonate. J. Crystal Growth, 236: 363–370.
11. Ouhenia S, Chateigner D, Belkhir MA, Guilmeau E, Krauss C, 2008. Synthesis of calcium carbonate polymorphs in the presence of polyacrylic acid. J. Crystal Growth, 310: 2832–2841.
12. Öner M, Dogan Ö, Öner G, 1998. The Influence of polyelectrolytes architecture on calcium sulfate dihydrate growth retardation. J.Crystal Growth, 186 (3), 427-437.
13. Shivkumara C, Singh P, Gupta A, Hegde MS, 2006. Synthesis of vaterite CaCO3 by direct precipitation using glycine and L-alanine as directing agents. Materials Research Bulletin, 41: 1455–1460.
14. Vagenas NV, Gatsouli A, Kontoyannis CG, 2003. Quantitative analysis of synthetic calcium carbonate polymorphs using FT-IR spectroscopy. Talanta, 59: 831-836.
15. Wang X, Sun H, Xia Y, Chen C, Xu H, Shan H, Lu JR, 2009. Lysozyme mediated calcium carbonate mineralization. J. Colloid and Interface Science, 332: 96–103.
16. Xie AJ, Shen YH, Zhang CY, Yuan ZW, Zhu XM, Yang YM, 2005. Crystal growth of calcium carbonate with various morphologies in different amino acid systems. J. Crystal Growth, 285: 436–443.
17. Yu J, Lei M, Cheng B, Zhao X, 2004. Effects of PAA additive and temperature on morphology of calcium carbonate particles. J. Solid State Chemistry, 177: 681–689.
18. Zhang Z, Xie Y, Xu X, Pan H, Tang R, 2012. Transformation of amorphous calcium carbonate into aragonite. J. Crystal Growth, 343: 62-67.
19. Zhu Y, Liu Y, Ruan Q, Zeng Y, Xiao J, Liu Z, Cheng L, Xu F, Zhang L, 2009. Superstructures and mineralization of laminated vaterite mesocrystals via mesoscale transformation and self-assembly, J. Phys. Chem. C, 113: 6584–6588.
20. Wie H, Shen Q, Zhao Y, Wang DJ, Xu DF, 2003. Influence of polyvinylpyrrolidone on the precipitation of calcium carbonate and on the transformation of vaterite to calcite. J. Crystal Growth, 250:516–524.