Y-MCM-41介孔分子筛的微波合成与表征

The microwave synthesis and characterization of Y-MCM-41 mesoporous molecular sieves

在碱性条件下,用微波法合成了掺杂过渡金属钇的介孔分子筛Y -MCM - 4 1.借助XRD、FT -IR、SEM、TEM和N2 吸附-脱附实验等分析手段对样品进行了表征,结果表明合成的介孔分子筛具有六方孔道结构,比表面积较高,约为6 5 0 .4m2 /g .X射线荧光光谱分析表明Y元素以0 .6 %的含量存在于介孔结构中,FT -IR分析表明掺杂后的样品在96 3.90cm-1附近的吸收峰与掺杂前相比强度有明显的增强,说明了MCM- 4

In alkaline condition mesoporous Y-MCM-41 materials have been successfully synthesized using microwave heating. XRD、 FT-IR、 SEM、 TEM and N_2 adsorption-desorption experiments have been used to characterize the samples. The results show that the sample possesss a hexagonal array of uniform mesopores and the surface area about 650.4?m^2/g. X-ray fluorescence spectrum analysis (demonstrates) that 0.6% Y exists in the mesoporous structure of Y-MCM-41. The conclusion has also been confirmed by FT-IR which shows an increase in intensity of the peak of Y-MCM-41 at (963.90?cm^(-1).)