A series of mesoporous zirconium oxophosphate (M-ZrPO) with different P/Zr molar ratios (0–1.25) has been prepared via a facile one-pot evaporation-induced self-assembly (EISA) strategy. After removing the structure-directing agents, the M-ZrPO with large specific surface area (160 m2 g−1), big pore volume (0.26 cm3 g−1) and narrow pore size distribution (5.64 nm) has been obtained. Small-angle X-ray diffraction (SXRD) and transmission electron microscopy (TEM) results showed that these materials had ordered mesoporous structure. With the increase of P/Zr, the textural properties of M-ZrPO could be improved. Moreover, the ordered mesostructure could be maintained even when treated at 800 °C, indicating the M-ZrPO had attractive thermal stability. NH3-TPD and pyridine-IR analyses showed the presence of abundant Brönsted and Lewis acid sites in the material. The M-ZrPO has been used successfully as solid acid catalyst and showed excellent performance in the ketalization reaction.
通过简单的一锅蒸发诱导自组装(EI
SA)策略,制备了一系列具有不同P/Zr摩尔比(0-1.25)的中孔
锆氧
磷酸盐(M-ZrPO)。去除结构导向剂后,获得了具有较大比表面积(160 m² g⁻¹)、大孔体积(0.26 cm³ g⁻¹)和窄孔径分布(5.64 nm)的M-ZrPO。小角X射线衍射(SXRD)和透射电子显微镜(
TEM)结果表明,这些材料具有有序的中孔结构。随着P/Zr比的增加,M-ZrPO的织构性质得到改善。此外,即使在800°C下处理后,有序的中孔结构仍能保持,表明M-ZrPO具有吸引人的热稳定性。NH3-
TPD和
吡啶-IR分析显示材料中存在丰富的Brönsted酸和Lewis酸位点。M-ZrPO成功用作固体酸催化剂,在
缩酮反应中表现出优异的性能。