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A facile in situ pillaring method—the synthesis of Al-pillared montmorillonite
Abstract A facile pillaring method for Al-pillared montmorillonite (Al-pillared-MMT) has been established by the in situ formation polyoxocation [Al13O4(OH)24(H2O)12 7+] in the interlayer of montmorillonite (MMT). The result of X-ray diffraction (XRD) showed that the pillaring effect was consistent with that of the traditional method namely, the basal spacing was up to 18.8Å. PEG400 in the synthesis system played a part of a layer extending agent which could promote the forming of Al13 7+ in the layer of MMT. The nitrogen adsorption–desorption measurement exhibited that the pore size and BET surface area of pillared montmorillonite(MMT) via an in situ way were 3.5–5nm and 181m2/g, respectively. The BET surface area was larger than the conventional pillared MMT and the pore size was nearly the same with traditional methods. The process of synthesis Al13 7+ and pillaring MMT were completed in one step in this method, which was a facile and effective method for preparing pillared MMT.
A facile in situ pillaring method—the synthesis of Al-pillared montmorillonite
Abstract A facile pillaring method for Al-pillared montmorillonite (Al-pillared-MMT) has been established by the in situ formation polyoxocation [Al13O4(OH)24(H2O)12 7+] in the interlayer of montmorillonite (MMT). The result of X-ray diffraction (XRD) showed that the pillaring effect was consistent with that of the traditional method namely, the basal spacing was up to 18.8Å. PEG400 in the synthesis system played a part of a layer extending agent which could promote the forming of Al13 7+ in the layer of MMT. The nitrogen adsorption–desorption measurement exhibited that the pore size and BET surface area of pillared montmorillonite(MMT) via an in situ way were 3.5–5nm and 181m2/g, respectively. The BET surface area was larger than the conventional pillared MMT and the pore size was nearly the same with traditional methods. The process of synthesis Al13 7+ and pillaring MMT were completed in one step in this method, which was a facile and effective method for preparing pillared MMT.
A facile in situ pillaring method—the synthesis of Al-pillared montmorillonite
Gao, Yan (Autor:in) / Li, Wenjie (Autor:in) / Sun, Huimin (Autor:in) / Zheng, Zaihang (Autor:in) / Cui, Xuejun (Autor:in) / Wang, Hongyan (Autor:in) / Meng, Fanyu (Autor:in)
Applied Clay Science ; 88-89 ; 228-232
04.12.2013
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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