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Triton X-100 directed synthesis of mesoporous γ-Al2O3 from coal-series kaolin
Abstract Mesoporous γ-Al2O3 has been successfully synthesized by using calcined coal-series kaolin as raw material and Triton X-100 (TX-100) as template. The effect of TX-100/Al3+ ratio on the structural and textural properties of mesoporous γ-Al2O3 was investigated. Physical properties of obtained samples were characterized by X-ray diffraction (XRD), N2 adsorption–desorption, transmission electron microscopy (TEM), thermogravimetric analysis (TG), scanning electron microscopy (SEM) with energy-dispersive X-ray analysis (EDAX) and Fourier transform infrared spectroscopy (FTIR). The results indicated that the amount of TX-100 influenced the structure and porous properties of mesoporous γ-Al2O3 significantly. When TX-100/Al3+ ratio was in the range of 0.03–0.15, all samples had mesoporous structures with BET surface area of 193.0–261.0m2/g and pore size of 5.04–6.71nm. In addition, the reaction mechanism involved in the process was proposed and discussed.
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Highlights Leachate of coal-series kaolin was used as Al source. Triton X-100(TX-100) was used as template. Mesoporous γ-Al2O3 has been synthesized. The amount of TX-100 influences the structure and porosity of samples significantly.
Triton X-100 directed synthesis of mesoporous γ-Al2O3 from coal-series kaolin
Abstract Mesoporous γ-Al2O3 has been successfully synthesized by using calcined coal-series kaolin as raw material and Triton X-100 (TX-100) as template. The effect of TX-100/Al3+ ratio on the structural and textural properties of mesoporous γ-Al2O3 was investigated. Physical properties of obtained samples were characterized by X-ray diffraction (XRD), N2 adsorption–desorption, transmission electron microscopy (TEM), thermogravimetric analysis (TG), scanning electron microscopy (SEM) with energy-dispersive X-ray analysis (EDAX) and Fourier transform infrared spectroscopy (FTIR). The results indicated that the amount of TX-100 influenced the structure and porous properties of mesoporous γ-Al2O3 significantly. When TX-100/Al3+ ratio was in the range of 0.03–0.15, all samples had mesoporous structures with BET surface area of 193.0–261.0m2/g and pore size of 5.04–6.71nm. In addition, the reaction mechanism involved in the process was proposed and discussed.
Graphical abstract Display Omitted
Highlights Leachate of coal-series kaolin was used as Al source. Triton X-100(TX-100) was used as template. Mesoporous γ-Al2O3 has been synthesized. The amount of TX-100 influences the structure and porosity of samples significantly.
Triton X-100 directed synthesis of mesoporous γ-Al2O3 from coal-series kaolin
Pan, Feng (Autor:in) / Lu, Xuchen (Autor:in) / Wang, Tizhuang (Autor:in) / Wang, Yun (Autor:in) / Zhang, Zhimin (Autor:in) / Yan, Yan (Autor:in)
Applied Clay Science ; 85 ; 31-38
04.09.2013
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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