Effect of Aluminium Content in Aluminium Pillared Montmorillonite on Its Surface Acidity Properties

Is Fatimah, Narsito Narsito, Karna Wijaya

Abstract


Aluminium pillared montmorillonites from Indonesian natural montmorillonite has been prepared using Al13 Keggin ion pillaring precursor in varied concentrations. Herein we studied their characterization and catalysis application for esterification reaction. X-ray diffraction (XRD), energy dispersive x-ray analysis (EDX), and BET gas sorption analysis were employed to characterize the prepared materials besides the characterization on surface acidity by pyridine and n-butylammine adsorptions and FTIR analysis. The result showed that significant improvement on physicochemical character data was obtained by a pillarization process. Such a process also provided improvements on catalytic activities in esterification reactions. The effect of aluminium content on material characters was discussed in this paper. It was observed from the catalytic activity tests that pillared montmorillonite samples demonstrated higher activity in esterification reaction relative to the raw montmorillonite. It was found that surface profile of materials consist of specific surface area, pore volume and Lewis acidity were significantly affect the catalyst activity.

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References


Gil, A. & Gandia, L.M., Recent Advances in the Synthesis and Catalytic Applications of Pillared Clays., Catal. Rev-Sci. Eng., 42(1&2), 145–212, 2000.

Kloprogge, J.T., Synthesis of Smectites and Porous Pillared Clay Catalysts: A Review, J.Por.Mat., 5, 5-41, 1998.

Kloprogge, J.T., Duong, L.V. & Frost, R.L., A Review of The Synthesis and Characterization of Pillared Clays and Related Porous Materials for Cracking of Vegetable Oils to Produce Biofuels, Environ. Geol., 47, 967–981, 2005.

Selvaraj, S., Mohan, B.V., Krishna, K.N. & Jai Prakash, B.S., Pillaring of smectites using an aluminium oligomer: A. study of pillar density and thermal stability, App.Clay.Sci., 10, 439-450, 1996.

Tomlinson, A.A.G., Characterization of Pillared Layered Structures, J.Por.Mat., 5, 259–274, 1998.

Lambert, J.F. & Poncelet, G., Acidity in Pillared Clays: Origin and Catalytic manifestations, Topic in Catalysis, 4, 45-53, 1997.

Tyagi, B., Chudasama, C. & Jasra, R., Characterization of Surface Acidity of an Acid Montmorillonite Activated with Hydrothermal, Ultrasonic and Microwave Techniques, App.Clay.Sci, 31, 16– 28, 2006.

Molina, R., Moreno, G. & Poncelet, Al-pillared Hectorite and Montmorillonite Prepared from Concentrated Clay Suspensions: Structural, Textural and Catalytic Properties, Studies in Surface Science and Catalysis, 130(2), 983-988, 2000.

Kumar, P., Jasra, R.V. & Bhat, S.G.T., Effect Of OH-/Al Ratio of Pillaring Solution on The Texture and Surface Acidity of Aluminium Pillared Clays, Indian Journal of chemistry. Sect. A: Inorganic, Physical, Theoretical & Analytical, 36(8), 667-671, 1997.

Reis, A.S. & Ardisson, J.D., Exchangeable Ion and Thermal Treatment Effects on Basal Spacings of Al-Hydroxy Pillared Montmorillonites, Clays and Clay Miner., 51(33), 33–40, 2003.

Sergio, M., Musso, M.., Medina, J. & Diano, W., Aluminum-Pillaring of a Montmorillonitic Clay: Textural Properties as a Function of the Starting Mineral Particle Size, Journal of Materials Online, 12(2), 1-6, 2006.

Selvaraj, S., Mohan, B.V., Krishna, K.N. & Jai Prakash, B.S., Pillaring of Smectites Using an Aluminium Oligomer: A. Study of Pillar Density and Thermal Stability, App.Clay.Sci., 10, 439-450, 1996.

Katdare, P.S., Ramaswamy, V. & Ramaswamy, A.V., Intercalation of Al Oligomers into Ca2+-montmorillonite using Ultrasonics, J. Mater. Chem., 7(11), 2197–2199, 1997.

Booij, E., Kloprogge, J.T. & Veen, R.B., Preparation, Structural Characteristics and Catalytic Properties of Large-Pore Rare Earth Element (Ce, La)/A1-Pillared Smectites, Clays. Clay Miner, 44(6), 774 782, 1996.

Tumol, F. & Balci, S., Synthesis and Characterization of Al-Pillared Interlayered Bentonites, G.U. Journal of Science, 21(1), 21-31, 2008.

Gu,Y., Shi, F. & Deng, Y., Esterification of Aliphatic Acids with Olefin Promoted by Brønsted Acidic Ionic Liquids, Journal of Molecular Catalysis A: Chemical, 212, 71–75, 2004.

Yurdakoc, M., Akc’ay, M., Tonbul, Y. & Yurdakoc, K., Acidity of Silica-Alumina Catalysts by Amine Titration Using Hammett Indicators and FTIR Study of Pyridine Adsorption, Turk J Chem., 23, 319, 1999.




DOI: http://dx.doi.org/10.5614%2Fitbj.sci.2011.43.2.5

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