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Synthesis and characterization of NH2-porphyrins covalently immobilized on modified-SBA-15 |
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| Authors: | M Espinosa S Pacheco |
| Institution: | a Posgrado en Ingenieria, UAQ, Cerro de las Campanas S/N, Querétaro Qro. C.P. 7600, Mexico b Instituto Mexicano del Petroleo, Eje Central L. Cárdenas 152, C.P. 07750, México D.F.2, Mexico c Centro de Física Aplicada y Tecnología Avanzada, UNAM, Campus Juriquilla, Queretaro, C.P. 76230, Mexico d Centro de Investigación y Estudios Avanzados, U. Queretaro, Apdo. Postal 1-798, C.P. 76001, Mexico |
| Abstract: | The immobilization of two different succinic-modified carboxy-imide-porphyrins on the surface of amino-modified SBA-15 is reported. The SBA-15 was synthesized and modified by reacting its hydroxyls groups with the OH and/or OR groups of 3-amino propyl triethoxy silane, anchoring the amino group on its surface. Separately, two different derivatives amino-porphyrins (NH2-5-m-Etio-III-Ni2+ and NH2-2βpyrrolic-m-5,10,15,20-TPP-Ni2+) were modified using succinic anhydride to provides these with the carboxyl group appropriate to react covalently with the amino groups previously anchored on the SBA-15; these new hybrid materials have the appropriated textural and chemical characteristics to be used in heterogeneous catalysis. The samples were characterized by XRD, N2 adsorption isotherms, HR-TEM, TGA/DTA, FTIR, UV/VIS, 13C and 29Si NMR-CP/MAS. |
| Keywords: | 81 05 Kf 81 05 Rm 81 16 Be 81 20 Fw |
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