Instituto de Nanociencia de Aragon, Zaragoza, Spain.
Chem Commun (Camb). 2011 Dec 7;47(45):12337-9. doi: 10.1039/c1cc15899f. Epub 2011 Oct 20.
The structure of ordered mesoporous materials presenting a cubic structure undergoes a strong modification after adding aluminium alkoxides to the synthesis gel. As a result, an outstanding increase in the surface area and pore volume is observed, together with changes in the mesopore ordering. Hydrated aluminium species influence the chemical environment of the micelles during synthesis, which seems to induce the accumulation of stacking faults in the mesopore framework, and give rise to closer structural packing. The adsorption and release of ibuprofen as a test molecule correlates well with the textural changes observed.
添加铝醇盐到合成凝胶后，呈现立方结构的有序介孔材料的结构会发生强烈的变化。结果，观察到表面积和孔体积的显著增加，同时介孔有序性也发生变化。水合铝物种在合成过程中影响胶束的化学环境，这似乎会导致介孔骨架中堆积缺陷的积累，并导致更紧密的结构堆积。作为测试分子的布洛芬的吸附和释放与观察到的结构变化密切相关。
