Controlled Crystallization of LTA Zeolitic Nanoparticles from a Clear Solution Using Organic Template

Document Type: Research Article


1 Faculty of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, I.R. IRAN

2 Department of Chemical and Biochemical Engineering, Faculty of Engineering, The University of Western Ontario (UWO), London, Ontario, CANADA


LTA Zeolite nanoparticles was successfully synthesized from clear solution under controlled conditions using hydrothermal method using tetramethyl ammonium hydroxide as a structural directing agent. The as-synthesized LTA zeolite particles were characterized by powder X-ray Diffraction (XRD) analysis, Scanning Electron Microscopy (SEM), Fourier Transform InfraRed (FT-IR) spectroscopy, Energy Dispersive X-ray (EDX) analysis  and surface area measuring technique of Brunauer, Emmett and Teller (BET). XRD patterns and FT-IR spectra were ascertained the formation of pure crystalline phase of 4A (i.e. LTA) zeolite. SEM micrograph was shown particles size in the range of 60 -170 nm with uniform morphology. The Si /Al ratio of the as-synthesized zeolite nanoparticles was 1.66 with a BET surface area of 421 m2/g.


Main Subjects

[1] Szostak R., "Molecular Sieves-Principles of Synthesis and Identification", 1st ed., Van Nostrand  Reinhold:New York, 1989; 2nd ed.; Blackie:London, (1998).

[2] Breck D.W., "Zeolite Molecular Sieve, Structure, Chemistry and Use", E. Krieger Publishing Co,USA, (1994).

[3] Seifi L., Torabian A., Kazemian H., Bidhendi G.N., Azimi A.A., Charkhi A., Adsorption of Petroleum Monoaromatics from Aqueous Solutions Using Granulated Surface Modified Natural Nanozeolites: Systematic Study of Equilibrium Isotherms, Water, Air, Soil Pollut. , (2010).[ DOI 10.1007/s11270-010-0614-7]

[4] Torabian A., Kazemian H., Seifi L., Bidhendi G. N., Ghadiri S. K., Removal of Petroleum Aromatic Hydrocarbons by Surfactant-Modified Natural Zeolite, Clean, 38 (1), p. 77, (2010).

[5] Tosheva L., Valtchev V. P., Nanozeolites: Synthesis, Crystallization Mechanism, and Applications, Chem. Mater., 17, p. 2494 (2005).

[6] Alfaro S., Rodríguez C., Valenzuela M.A., Bosch P., Aging Time Effect on the Synthesis of Small Crystal LTA Zeolites in the Absence of Organic Template, Mater. Lett., 61, p. 4655 (2007).

[7] Larlus O., Mintova S., T. Bein, Environmental Syntheses of Nanosized Zeolites with High Yield and Monomodal Particle Size Distribution, Microporous Mesoporous Mater., 96, p. 405 (2006).

[8] Szostak R., "Molecular Sieves", BlackieAcademic&Professional,New York, (1997).

[9] Breck D.W., "Zeolite Molecular Sieves", John Wiley,New York, (1974).

[10] Chen Zh., Li Sh., Yan Y., Synthesis of Template-Free Zeolite Nanocrystals by Reverse Microemulsion-Microwave Method, Chem. Mater., 17, p. 2262 (2005).

[11] Bouizi Y., Paillaud J. L., Simon L., Valtchev V., Seeded Synthesis of Very High Silica Zeolite A, Chem. Mater., 19, p. 652 (2007).

[12] Zhu G., Qiu S., Yu J., Sakamoto Y., Xiao F., Xu R., Terasaki O., Synthesis and Characterization of High-Quality Zeolite LTA and FAU Single Nanocrystals, Chem. Mater., 10, p. 1483 (1998).

[13] Zhou Zh., Yang J., Zhang Y., Chang L., Sun W., Wang J., NaA Zeolite/Carbon Nanocomposite Thin Films with High Permeance for CO2/N2 Separation, Sep. Purif. Technol., 55, p. 392, (2007).

[14] Mintova S., Bein T., Nanosized Zeolite Films for Vapor-Sensing Applications, Microporous Mesoporous Mater., 50, p. 159 (2001).

[15] Nichols W. T., Kodaira T., Sasaki Y., Shimizu Y., Sasaki T., Koshizaki N., Zeolite LTA Nanoparticles Prepared by Laser-Induced Fracture of Zeolite Microcrystals, J. Phys. Chem. B, 110, p. 83 (2006).

[16] Rakoczy R.A., Traa Y., Nanocrystalline Zeolite A: Synthesis, Ion Exchange and Dealumination, Microporous Mesoporous Mater., 60, p. 69 (2003).

[17] Mintova S., Olson N. H., Valtchev V., Bein T., Mechanism of Zeolite a Nanocrystal Growth from Colloids at Room Temperature, Science, 283(5404), p. 958 (1999).

[18] Hu Y., Liu Ch., Zhang Y., Ren N., Tang Y., Microwave-Assisted Hydrothermal Synthesis of Nanozeolites with Controllable Size, Microporous Mesoporous Mater., 119, p. 306 (2009).

[19] Kazemian H., Modarress H., Kazemi M., Farhadi F., Synthesis of Submicron Zeolite LTA Particles from Natural Clinoptilolite and Industrial Grade Chemicals Using one Stage Procedure, Powder Technology, 196, p. 22 (2009) [DOI:10.1016/j.powtec. 2009.06.017].

[21] Abrishamkar M., Azizi S.N., Kazemian H., Using Taguchi Robust Design Method to Develop an Optimized Synthesis Procedure for Nanocrystals of ZSM­5 Zeolite, Z. Anorg. Allg. Chem. 636(15), p. 2686 (2010), [DOI: 10.1002/zaac.201000202]. 

[22] Torkaman R., Soltanieh M., Kazemian H., Optimization of Parameters for the Synthesis of MFI Nanoparticles by Taguchi Robust Design Metho, Chem. Eng. Technol., 33(6), p. 902 (2010).

[23] Ghasemi Z., Younesi H., and Kazemian H., Synthesis of Nanozeolite Sodalite from Rice Husk Ash Without Organic Additives, The Canadian Journal of Chemical Engineering, 89(3), p. 601 (2010). [DOI: 10.1002/cjce.20441]

[24] Ghoroghchian F., Aghabozorg H.,  Farhadi F., Kazemian H., Preparation and Gas Permeation Performance of Nano Zeolite LTL Membrane,  Chemical Engineering & Technology, 33 (12), p. 2066, (2010), [DOI: 10.1002/ceat.200900543]

[25] Tehrani Matin K.,  Bastani D., Kazemian H., Applying the Taguchi Method to Develop an Optimized Synthesis Procedure for Nanocrystals of T-Type Zeolite, Chem. Eng. Technol., 32(7), p.1042, (2009).

[26] Asadollahi M., Bastani D., and Kazemian H., Permeation of Single Gases Through TEG Liquid Membranes Modified by Na-Y Nano Zeolite Particles, Separation and Purification Technology 76(2),  p.120 (2010),  [DOI:10.1016/j.seppur. 2010.09.029].

[27] Yang S., Li Q., Wang M., Navrotsky A., Competition of FAU and LTA in the Synthesis System (TMA,Na)2O–Al2O3–SiO2–H2O, Microporous Mesoporous Mater., 87, p. 261, (2006).

[28] Treacy M.M.J., Higgins J.B.,Collection of Simulated XRD Powder Patterns for Zeolites, Elsevier, Amsterdam (2001).

[29] Flanigen E. M., Khatami H., MMolecular Sieve Zeolite-I", American Chemical Society,Washington(1971).

[30] Bekkum H.V., Flanigen E.M., Jansen J.C., "Introduction to Zeolite Science and Practice", Elsevier, Amsterdam(1991).