Evaluation of the acid properties of aluminossilicate MCM-22 material synthesized under static conditions

• Autorzy: Rodrigues M. G. F. , Barbosa A. S. , Coriolano A. C. F. , Silva E. F. B. , Araujo A. S.

Identyfikatory

DOI

10.1515/msp-2015-0019

• Języki publikacji: EN

Abstrakty

EN

The hydrothermal synthesis of MCM-22 zeolite was carried out using silica, sodium aluminate and hexamethyleneimine, under static conditions at 150 °C for a period of 10 days, followed by washing with deionized water, drying overnight and calcination at 650 °C. The obtained material was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The XRD analysis evidenced that MCM-22 presented a well defined MWW structure. The FT-IR spectrum confirmed the efficiency of the hexamethyleneimine as an organic template used to direct the structure of the MCM-22 zeolite under static conditions. The SEM image indicated that the particles are spherical in shape, with a diameter of ca. 10 m. The acid properties of the MCM-22 zeolite, as determined by n-buthylamine adsorption, were investigated in the temperature ranges of 105 to 300 °C and 300 to 525 °C, relative to medium and strong acid sites, respectively.

Słowa kluczowe

EN

crystal structure; synthesis of zeolites; porous materials; MCM-22

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2015
• Tom: Vol. 33, No. 1
• Strony: 131--136
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Rodrigues M. G. F.

• Federal University of Campina Grande, Academic Unit of Chemical Engineering, 58109-970, Campina Grande PB, Brazil

autor

Barbosa A. S.

• Federal University of Campina Grande, Academic Unit of Chemical Engineering, 58109-970, Campina Grande PB, Brazil

autor

Coriolano A. C. F.

• Potiguar University – Laureate International Universities, Av. Nascimento de Castro 1597, 59056-450, Natal RN, Brazil

autor

Silva E. F. B.

• Federal University of Rio Grande do Norte, Institute of Chemistry, 59078-970, Natal RN, Brazil

autor

Araujo A. S.

• Federal University of Rio Grande do Norte, Institute of Chemistry, 59078-970, Natal RN, Brazil

Bibliografia

• [1] LAWTON S.L., FUNG A.S., KENNEDY G.J., ALEMANY L.B., CHANG C.D., HATZIKOS G.H., LISSY D.N., RUBIN M.K., TIMKEN H.K.C, STEUERNAGEL S., WOESSNER D.E., J. Phys. Chem., 100 (1996), 3788.
• [2] CORMA A., CORELL C., FORNES V., KOLODZIEJSKI W., PEREZ-PARIENTE J., Zeolites, 15 (1995), 576.
• [3] DELITALA C., CADONI E., DELPIANO D., MELONI D., MELIS S., FERINO I., Micropor. Mes., 110 (2008), 197.
• [4] KUMAR G.S., SARAVANAMURUGAN S., HARTMANN M., PALANICHAMY M., MURUGESAN V., J. Mol. Catal. A-Chem., 272 (2007), 38.
• [5] MIHALYI R.M., LAZAR K., KOLLAR M., LONYI F., PAL-BORBELY G., SZEGEDI A., Micropor. Mes., 110 (2998), 51.
• [6] AGUILAR J., PERGHER S.B.C., DETONI C., CORMA A., MELO F.V., SASTRE E., Catal. Today, 133 (2008), 667.
• [7] CHOI S.H., CORONAS J., LAI Z.P., YUST D., ONORATO F., TSAPATSIS M., J. Membrane Sci., 316 (2008), 145.
• [8] RIGOREAU J., LAFORGE S., GNEP N.S., GUISNET M., J. Catal., 236 (2005), 45.
• [9] FERNANDES V.J., ARAUJO A.S., FERNANDES G.J.T., J. Therm. Anal. Calorim., 56 (1999), 275.
• [10] CORIOLANO A.C.F., SILVA C.G.C., COSTA M.J.F., PERGHER S.B.C., CALDEIRA V.P.S., ARAUJO A.S., Micropor. Mes., 172 (2013), 206.
• [11] ARAUJO A.S., FERNANDES V.J., GIOLITO I., ZINNER L.B., Thermochim. Acta, 223 (1993), 129.
• [12] ARAUJO A.S., DINIZ J.C., SILVA A.O., MELO R.A.A., J. Alloy. Compd., 250 (1997), 532.
• [13] JACOBS W.P.J.H., JOBIC, H., VAN WOLPUT, J.H.M.C., VAN SANTEN, R.A., Zeolites, 12 (1992), 315