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Mesoporous M-SBA-15-SO3H materials with molar ratios of Si/M=10 (M=Al, Ti) and Si/S=10 were synthesized by sol-gel. The materials were characterised by SAXRD, nitrogen physisorption, UV-Vis-DRS, FT-IR, using pyridine as a probe molecule, and the H+ content was determined by sodium hydroxide titration. The incorporation of -SO3H groups resulted in Ti or Al mesoporous materials with the typical hexagonal...
ZnAl hydrotalcite-like compounds were modified through the incorporation of Zr+4 using molar ratios of Zr/Al(X)=0.0, 0.10 and 0.25. The synthesis of these materials was performed by the co-precipitation method and their physicochemical properties were characterized by XRD, UV-Vis-DRS, N2 physisorption, TGA, and finally, the basic properties were analyzed by titration with benzoic acid and adsorption...
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