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[求助]
棒状介孔硅的制备
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本人小菜鸟，想制备棒状介孔硅，但是看文献后，自己计算的CTAB和TEOS的摩尔比和文献不同，希望这里的大侠给指教，或者有相关的文献或者方法，请赐教！小弟拜谢！ Different shaped MSNs were synthesized by condensation under diluted TEOS and low surfactant conditions with NH3H2O as a catalyst. Briefly, CTAB was dis-solved in 70 ml H2O, and NH3H2O (28%-30%) was added with stirring for 1 h.TEOS was then added with vigorous stirring for 4 h at room temperature. The shapeof MSNs was controlled by the molar ratio of the reaction mixture. For sphere-shaped particles, the molar ratio of the reaction mixture was 100 (CTAB): 1000(H2O): 10 (NH3H2O): 0.7 (TEOS), while the molar ratio of short rod and long rod-shaped particles was 200 (CTAB): 1000 (H2O): 20 (NH3H2O): 1.4(TEOS) and 400(CTAB): 1000 (H2 O): 20 (NH 3H2O): 2.8 (TEOS), respectively. |
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