Articles & Issues

Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received April 18, 2007
Accepted November 5, 2007

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

Synthesis and characterization of zeolite NaY from rice husk silica

Jatuporn Wittayakun^† Pongtanawat Khemthong Sanchai Prayoonpokarach

School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand

jatuporn@sut.ac.th

Korean Journal of Chemical Engineering, July 2008, 25(4), 861-864(4), 10.1007/s11814-008-0142-y

Download PDF

Abstract

Rice husk silica (RHS) in amorphous phase with 98% purity was prepared from a waste rice husk from rice milling by leaching with hydrochloric acid and calcination. The RHS was used effectively as a silica source for the synthesis of zeolite Y in sodium form (NaY). The zeolite in pure phase was obtained from a two-step synthetic route in which the starting gels were mixed, aged for 24 h at room temperature and crystallized for 24 h at 90 ℃. The diameter of single crystal particles from a scanning electron microscope was approximately 1.0 μm, whereas the average particle diameter from laser diffraction particle size analyzer was approximately 10 μm because of the agglomeration of small crystals. Longer crystallization time in this route resulted in a mixed phase containing NaY and zeolite P in sodium form (NaP). In addition, a one-step synthetic route (no aging) was studied and the product was also a mixed phase zeolite.

Keywords

Rice Husk Silica Zeolite Y NaY Two-step Route One-step Route Zeolite P

References

Park BD, Wi SG, Lee KH, Singh AP, Yoon TH, Kim YS, Biomass Bioenerg., 25(3), 319 (2003)
Williams PT, Nugranad N, Energy, 25(6), 493 (2000)
Huang S, Jing S, Wang JF, Wang ZW, Jin Y, Powder Technol., 117(3), 232 (2001)
Auerbach SM, Carrado KA, Dutta PK, Handbook of zeolite science and technology, Marcel Dekker, New York (2003)
Katsuki H, Furuta S, Watari T, Komarneni S, Microporous Mesoporous Mater., 86, 145 (2005)
Prasetyoko D, Ramli Z, Endud S, Hamdan H, Sulikowski B, Waste Manage., 26, 1173 (2006)
Sun LY, Gong KC, Ind. Eng. Chem. Res., 40(25), 5861 (2001)
Wang H, Lin PKS, Huang YJ, Li MC, Tsaur LK, J. Hazard. Mater., 58, 147 (1998)
Grisdanurak N, Chiarakorn S, Wittayakun J, Korean J. Chem. Eng., 20(5), 950 (2003)
Roberie TG, Hildebrandt D, Creighton J, Gilson JP, In Zeolites for clean technology, M. Guisnet, and J.-P. Golson, Eds., Imperial College Press, London (2001)
Cundy CS, Cox PA, Microporous Mesoporous Mater., 82, 1 (2005)
Ginter D, In Verified syntheses of zeolitic materials, 2nd Ed., H. Robson Ed., Netherlands, Amsterdam (2001)
Chandrasekhar S, Pramada PN, Appl. Clay Sci., 27, 187 (2004)
Oh HS, Kang KK, Kim MH, Rhee HK, Korean J. Chem. Eng., 18(1), 113 (2001)
Albert BR, Cheetham AK, Stuart JA, Adams CJ, Microporous Mesoporous Mater., 21, 133 (1998)
BS2955, Glossary of terms relating to particle technology, British Standards Institution (1993)