On the location of different titanium sites in Ti–OMS-2 and their catalytic role in oxidation of styrene |
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Authors: | Hadi Nur Fitri Hayati Halimaton Hamdan |
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Affiliation: | aIbnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia |
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Abstract: | Octahedral manganese oxide molecular sieves (OMS-2) modified by impregnation of TiO2 exhibit a higher catalytic activity for oxidation of styrene with tert-butylhydroperoxide in comparison to titanium-incorporated OMS-2, where the styrene conversions were ca. 70% and 45–50%, respectively. The framework of titanium species has no effect on the enhancement of catalytic activity, while the non-framework of titanium species induces a synergetic effect that enhances the oxidation of styrene with tert-butylhydroperoxide. |
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Keywords: | Titanium-incorporated octahedral manganese oxide molecular sieves Non-framework titanium Oxidation of styrene |
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