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Catalytic oxidation of VOCs over Al- and Fe-pillared montmorillonite
Abstract Al- and Fe-pillared montmorillonite (Al- and Fe-PILCs) were prepared and examined as catalysts in the deep oxidation of toluene and chlorobenzene. The catalysts before and after reaction were characterized by X-ray powder diffraction, N2 adsorption, scanning electron microscopy, and energy dispersive X-ray spectrometer. Results show that Al- and Fe-PILCs with layer structures increase the surface area. For the catalytic oxidation of volatile organic compounds (VOCs), Fe-PILCs exhibit higher performance than fresh montmorillonite and Al-PILCs. Higher concentration of Fe also resulted in higher catalytic activity. Fe-PILCs also exhibited higher stability than Al-PILCs. Even at a low temperature (100°C), Fe-PILCs still exhibited certain activity. Lifetime evaluation results show that the activity of Fe-PILC (3) did not vary after a 96-hour reaction. BET and XRD results indicate that these pillared catalysts have very stable structures even after prolonged reaction. Hence, Fe-PILCs are potential materials for VOC decontamination.
Highlights Al- and Fe-pillared montmorillonite (Al- and Fe-PILCs) were developed. Fe-PILCs exhibit higher performance of catalytic oxidation of VOCs than Al-PILCs. Fe-PILCs exhibited higher stability than Al-PILCs. Even at a low temperature (100°C), Fe-PILCs still exhibited certain activity.
Catalytic oxidation of VOCs over Al- and Fe-pillared montmorillonite
Abstract Al- and Fe-pillared montmorillonite (Al- and Fe-PILCs) were prepared and examined as catalysts in the deep oxidation of toluene and chlorobenzene. The catalysts before and after reaction were characterized by X-ray powder diffraction, N2 adsorption, scanning electron microscopy, and energy dispersive X-ray spectrometer. Results show that Al- and Fe-PILCs with layer structures increase the surface area. For the catalytic oxidation of volatile organic compounds (VOCs), Fe-PILCs exhibit higher performance than fresh montmorillonite and Al-PILCs. Higher concentration of Fe also resulted in higher catalytic activity. Fe-PILCs also exhibited higher stability than Al-PILCs. Even at a low temperature (100°C), Fe-PILCs still exhibited certain activity. Lifetime evaluation results show that the activity of Fe-PILC (3) did not vary after a 96-hour reaction. BET and XRD results indicate that these pillared catalysts have very stable structures even after prolonged reaction. Hence, Fe-PILCs are potential materials for VOC decontamination.
Highlights Al- and Fe-pillared montmorillonite (Al- and Fe-PILCs) were developed. Fe-PILCs exhibit higher performance of catalytic oxidation of VOCs than Al-PILCs. Fe-PILCs exhibited higher stability than Al-PILCs. Even at a low temperature (100°C), Fe-PILCs still exhibited certain activity.
Catalytic oxidation of VOCs over Al- and Fe-pillared montmorillonite
Li, Dan (Autor:in) / Li, Chunshan (Autor:in) / Suzuki, Kenzi (Autor:in)
Applied Clay Science ; 77-78 ; 56-60
05.02.2013
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Catalytic oxidation of VOCs over Al- and Fe-pillared montmorillonite
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