Browse > Article
http://dx.doi.org/10.11629/jpaar.2017.12.30.183

Eco-Friendly Synthesis of Rod-Like Potassium Hexatitanate Particles  

Lee, Chongmin (Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources)
Chang, Hankwon (Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources)
Jang, Hee Dong (Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources)
Publication Information
Particle and aerosol research / v.13, no.4, 2017 , pp. 183-189 More about this Journal
Abstract
Potassium hexatitanate ($K_2Ti_6O_{13}$) with high thermal insulating capacity, good mechanical properties, and excellent chemical stability are promising functional materials in the field of reinforcing material, heat insulating paints and automotive brake linings. In this study, we successfully synthesized rod-shaped potassium hexatitanate ($K_2Ti_6O_{13}$) by aerosol spray drying and post heat treatment as an eco-friendly process. The $KHCO_3-TiO_2$ porous particles were firstly synthesized from a colloidal mixture of $K_2CO_3$ and $TiO_2$ via aerosol spray drying. Size of $KHCO_3-TiO_2$ porous particles was ranged from $1{\mu}m$ to $5{\mu}m$. The porous particles were then heated to fabricate rod-type $K_2Ti_6O_{13}$. The length and width of rod-type composites were affected by temperature and heating time. The length and width of $K_2Ti_6O_{13}$ were increased by 830 nm and 500 nm, respectively, as the reaction temperature and time increased.
Keywords
aerosol spray drying; potassium hexatitanate; nanorods;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Bao, N. Z., Feng, X., Lu, X. H. and Yang Z. H. (2002). Study on the formation and growth of potassium titanate whiskers. Journal of Materials Science, 37, 3035-3043.   DOI
2 Chang, H. and Jang H. D. (2014). Controlled synthesis of porous particles via aerosol processing and their applications. Advanced Powder Technology, 25, 32-42.   DOI
3 Cho, K., Suh, Y. J., Chang, H., Kil, D. S., Kim, B. G. and Jang H. D. (2010). Synthesis of mesoporous $CaCO_3$ particles by a spray drying method from the stable suspensions achieved in a beads mill. Advanced Powder Technology, 21, 145-149.   DOI
4 Cho, K. H., Cho, M. H., Kim, S. J. and Jang, H. (2008). Tribological properties of potassium titanate in the brake friction material; Morphological effects. Tribology Letters, 32, 59-66.   DOI
5 Hayashi, H., Nakamura, T. and Ebina T. (2016). Hydrothermal synthesis of sodium titanate nanosheets using a supercritical flow reaction system. Journal of the Ceramic Society of Japan, 124, 74-78.   DOI
6 Kang, S. O., Jang, H. S., Kim, Y. I., Kim, K. B. and Jung, M. J. (2007). Study on the growth of potassium titanate nanostructures prepared by sol-gel-calcination process. Materials Letters, 61, 473-477.   DOI
7 Kim, S. K., Chang, H., Cho, K., Kil, D. S., Cho, S. W., Jang, H. D., Choi, J. W. and Choi, J. (2011). Enhanced photocatalytic property of nanoporous $TiO_2/SiO_2$ micro-particles prepared by aerosol assisted co-assembly of nanoparticles. Materials Letters, 65, 3330-3332.   DOI
8 Kim, S. K., Chang, H. and Jang, H. D. (2017). Synthesis olmicron-sized porous $CeO_2-SiO_2$ composite particles for ultraviolet absorption. Advanced Powder Technology, 28, 406-410.   DOI
9 Lee, H. K., Shim, J. P., Shim, M. J., Kim, S. W. and Lee, J. S. (1996). The characteristics of synthesized potassium hexatitanate and the manufacturing process of the matrix. Materials Chemistry and Physics, 45, 243-247.   DOI
10 Li, D. X., Hagos, K., Huang, L. L., Lu, X. H., Liu, C. and Qian, H. L. (2017). Self-propagating high-temperature synthesis of potassium hexatitanate whiskers. Ceramics International, 43, 15505-15509.   DOI
11 Yoshida, H., Takeuchi, M., Sato, M., Zhang, L. K., Teshima, T. and Chaskar, M. G. (2014). Potassium hexatitanate photocatalysts prepared by a flux method for water splitting. Catalysis Today, 232, 158-164.   DOI
12 Zaremba, T. and Witkowska, D. (2010). Methods of manufacturing of potassium titanate fibres and whiskers. A review. Materials Science-Poland, 28, 25-41.
13 Zhang, T., Chen, Q. and Peng, L. M. (2008). Hydrothermal Reaction Mechanism and Pathway for the Formation of $K_2Ti_6O_{13}$ Nanowires. Advanced Functional Materials, 18, 3018-3025.   DOI