Simple Silica-Pillaring Route into Layered Phase: Simultaneous Intercalation of Amine-TEOS into H<sup>+</sup>-magadiite and Amine Catalylzed-Interlamellar Hydrolysis of TEOS

Oh-Yun Kwon

Journal of Industrial and Engineering Chemistry, Vol.5, No.4, 314-317, December, 1999

Simple Silica-Pillaring Route into Layered Phase: Simultaneous Intercalation of Amine-TEOS into H⁺-magadiite and Amine Catalylzed-Interlamellar Hydrolysis of TEOS

Oh-Yun Kwon^†

Department of Chemical Engineering, Yosu National University, Jeon-Nam 550-749, Korea

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The simultaneous intercalation of an amine and TEOS [tetraethylorthosilicate, Si(OC₂H₅)₄] into H⁺-magadiite in an amine-TEOS solution solution resulted in mesoporous silica-pillared H⁺-magadiites (SPM) through the successive interlamellar hydrolysis of TEOS in water. The results indicate that an interlayer amine acts as a gallery height expander as well as a base catalyst and template during the interlamellar hydrolysis of TEOS. The hydrolysis of the gallery TEOS resulted in siloxane-pillared H⁺-magadiites with a gallery height between 20.5 and 33.5 Å. The calcination of the samples at 538 ℃ in air resulted in silica-pillared magadiites with large specific surface areas between 511 and 769 m²/g, depending on the reaction stoichiometry, chain length of the amine, and gelation mediums. This process can greatly simplify the silica-pillaring process, because the silica-pillaring is performed effectively for a short time using only a small amount of reagent without pre-intercalation by amine or quaternery ammonium cation.

Keywords:magakiite;interlamellar hydrolysis;simultaneous intercalation;silica-pillared H⁺-magadiite

[References]

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Daily JS, Pinnavaia TJ, Chem. Mater., 4, 855 (1992)
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Yanagisawa T, Shimizu T, Kuroda K, Kato C, Bull. Chem. Soc. Jpn., 61, 3743 (1989)
Tindwa RM, Ellis DK, Peng GZ, Clearfield A, J. Chem. Soc.-Faraday Trans., 81, 545 (1985)
Rituz-Hitzky E, Rojo JM, Nature, 287, 28 (1980)
Jeong SY, Kwon OY, Suh JK, Jin HK, Lee JM, J. Colloid Interface Sci., 175(1), 253 (1995)
Kwon OY, Jeong SY, Suh JK, Ryu BH, Lee JM, J. Colloid Interface Sci., 177(2), 677 (1996)
Jeong SY, Suh JK, Jin H, Lee JM, Kwon OY, J. Colloid Interface Sci., 180(1), 269 (1996)
Galarneau A, Barodawalla A, Pinnavaia TJ, Nature, 374(6522), 529 (1995)
Fletcher RA, Bibby DM, Clays Clay Miner., 35, 318 (1987)
Beneke K, Lagaly G, Am. Miner., 63, 818 (1983)
Horvath G, Kawazoe K, J. Chem. Eng. Jpn., 16, 470 (1983)
Tanev PT, Pinnavaia TJ, Science, 267(5199), 865 (1995)
Kresge CT, Leonowicz ME, Roth WT, Vartuli JC, Beck JS, Nature, 359, 710 (1992)
Beck JS, Varturi JC, Roth WJ, Leonowicz ME, Kresge CT, Schmitt KD, Chu CT, Olson DH, Sheppard EW, McCullen SB, Higgins JB, Schlenker JL, J. Am. Chem. Soc., 114, 10834 (1992)

[Referenced By]

[Related Articles]

[1] Landis ME, Aufdembrink AB, Chu P, Johnson ID, Kirker GW, Rubin MK, J. Am. Chem. Soc., 113, 3189 (1991)

[2] Daily JS, Pinnavaia TJ, Chem. Mater., 4, 855 (1992)

[3] Sprung R, Davis ME, Kauffman JS, Dybowski CI, Ind. Eng. Chem. Res., 29, 213 (1990)

[4] Yanagisawa T, Shimizu T, Kuroda K, Kato C, Bull. Chem. Soc. Jpn., 63, 988 (1990)

[5] Yanagisawa T, Shimizu T, Kuroda K, Kato C, Bull. Chem. Soc. Jpn., 61, 3743 (1989)

[6] Tindwa RM, Ellis DK, Peng GZ, Clearfield A, J. Chem. Soc.-Faraday Trans., 81, 545 (1985)

[7] Rituz-Hitzky E, Rojo JM, Nature, 287, 28 (1980)

[8] Jeong SY, Kwon OY, Suh JK, Jin HK, Lee JM, J. Colloid Interface Sci., 175(1), 253 (1995)

[9] Kwon OY, Jeong SY, Suh JK, Ryu BH, Lee JM, J. Colloid Interface Sci., 177(2), 677 (1996)

[10] Jeong SY, Suh JK, Jin H, Lee JM, Kwon OY, J. Colloid Interface Sci., 180(1), 269 (1996)

[11] Galarneau A, Barodawalla A, Pinnavaia TJ, Nature, 374(6522), 529 (1995)

[12] Fletcher RA, Bibby DM, Clays Clay Miner., 35, 318 (1987)

[13] Beneke K, Lagaly G, Am. Miner., 63, 818 (1983)

[14] Horvath G, Kawazoe K, J. Chem. Eng. Jpn., 16, 470 (1983)

[15] Tanev PT, Pinnavaia TJ, Science, 267(5199), 865 (1995)

[16] Kresge CT, Leonowicz ME, Roth WT, Vartuli JC, Beck JS, Nature, 359, 710 (1992)

[17] Beck JS, Varturi JC, Roth WJ, Leonowicz ME, Kresge CT, Schmitt KD, Chu CT, Olson DH, Sheppard EW, McCullen SB, Higgins JB, Schlenker JL, J. Am. Chem. Soc., 114, 10834 (1992)