Abstract
Hydrotalcite was synthesized from hydroxide-form precursors to prepare a novel high-temperature CO2 sorbent, and the effect of Mg/Al ratio on CO2 sorption was studied. To enhance the CO2 sorption capacity of the sorbent, K2CO3 was coprecipitated during the synthetic reaction. X-ray diffraction analysis indicated that the prepared samples had a well-defined crystalline hydrotalcite structure, and confirmed that K2CO3 was successfully coprecipitated in the samples. The morphology of the hydrotalcite was confirmed by scanning electron microscopy, and N2 adsorption analysis was used to estimate its surface area and pore volume. In addition, thermogravimetric analysis was used to measure its CO2 sorption capacity, and the results revealed that the Mg: Al: K2CO3 ratio used in the preparation has an optimum value for maximum CO2 sorption capacity.
Article PDF
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
D. J. Hofmann, J. H. Butler, E. J. Dlugokencky, J.W. Elkins, K. Masarie, S. A. Montzka and P. Tans, Tellus B, 58, 614 (2006).
J. Ida and Y. S. Lin, Environ. Sci. Technol., 37, 1999 (2003).
W.Q. Liu, H. An, C. L. Qin, J. J. Yin, G. X. Wang, B. Feng and M. H. Xu, Energy Fuel, 26, 2751 (2012).
A. Garcia-Gallastegui, D. Iruretagoyena, M. Mokhtar, A. M. Asiri, S.N. Basahel, S.A. Al-Thabaiti, A.O. Alyoubi, D. Chadwick and M. S. P. Shaffer, J. Mater. Chem., 22, 13932 (2012).
F. Li, X.R. Jiang, D.G. Evans and X. Duan, J. Porous Mater., 12, 55 (2005).
M. K.R. Reddy, Z. P. Xu, G.Q. Lu and J. C.D. Da Costa, Ind. Eng. Chem. Res., 45, 7504 (2006).
L. Feng and X. Duan, Struct. Bond., 119, 193 (2006).
N. Barakos, S. Pasias and N. Papayannakos, Bioresour. Technol., 99, 5037 (2008).
D. P. Debecker, E. M. Gaigneaux and G. Busca, Chem-Eur. J., 15, 3920 (2009).
C.T. Yavuz, B.D. Shinall, A.V. Iretskii, M.G. White, T. Golden, M. Atilhan, P. C. Ford and G.D. Stucky, Chem. Mater., 21, 3473 (2009).
J.M. Lee, Y. J. Min, K.B. Lee, S.G. Jeon, J.G. Na and H. J. Ryu, Langmuir, 26, 18788 (2010).
Q.A. Wang, H. H. Tay, D. J. W. Ng, L.W. Chen, Y. Liu, J. Chang, Z.Y. Zhong, J. Z. Luo and A. Borgna, ChemSusChem, 3, 965 (2010).
Q. Wang, H. H. Tay, Z. H. Guo, L.W. Chen, Y. Liu, J. Chang, Z.Y. Zhong, J.Z. Luo and A. Borgna, Appl. Clay Sci., 55, 18 (2012).
S. Walspurger, L. Boels, P.D. Cobden, G.D. Elzinga, W. G. Haije and R.W. van den Brink, ChemSusChem, 1, 643 (2008).
H. J. Jang, C. H. Lee, S. Kim, S. H. Kim and K. B. Lee, ACS Appl. Mater. Interfaces, 6, 6914 (2014).
Z. Zhang, G. M. Chen and K. L. Xu, Appl. Clay Sci., 72, 206 (2013).
W. S. Yang, Y. Kim, P.K.T. Liu, M. Sahimi and T.T. Tsotsis, Chem. Eng. Sci., 57, 2945 (2002).
F. Rey, V. Fornes and J.M. Rojo, J. Chem. Soc. Faraday T., 88, 2233 (1992).
Y. J. Min, S.-M. Hong, S. H. Kim, K. B. Lee and S. G. Jeon, Korean J. Chem. Eng., 31, 1668 (2014).
J. I. Yang and J.N. Kim, Korean J. Chem. Eng., 23, 77 (2006).
Z. Yong, V. Mata and A. E. Rodriguez, Ind. Eng. Chem. Res., 40, 204 (2001).
Author information
Authors and Affiliations
Corresponding author
Additional information
This article is dedicated to Prof. Sung Hyun Kim on the occasion of his retirement from Korea University.
These authors contributed equally to this work.
Rights and permissions
About this article
Cite this article
Jang, H.J., Kim, S. & Lee, K.B. Simplified synthesis of K2CO3-promoted hydrotalcite based on hydroxide-form precursors: Effect of Mg/Al/K2CO3 ratio on high-temperature CO2 sorption capacity. Korean J. Chem. Eng. 34, 1–5 (2017). https://doi.org/10.1007/s11814-016-0294-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11814-016-0294-0