Efficient Synthesis of Highly Uniform AIPO4-11 Microcrystalline and Study on the Crystallization Process
Efficient Synthesis of Highly Uniform AIPO4-11 Microcrystalline and Study on the Crystallization Process
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DOI：
10.7503/cjcu20180103
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发表时间：
2018-08-10
影响因子：
1
通讯作者：
Xia Qinghua
中科院分区：
文献类型：
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作者：
Xia Kun;Zhou Dan;Xia Qinghua
采用旋转水热结晶方式快速高效地合成了AlPO4-11微晶分子筛。在静态水热结晶模式下，无法获得AlPO4-11分子筛的纯相，且晶体尺寸较大，由50-70 μ m的棒状晶体和5-10 μ m的球形晶体组成。与静态水热结晶方式相比，旋转水热结晶方式（转速为100 r/min）可大大缩短AlPO4-11分子筛的结晶时间（最短结晶时间为40 min），并显著减小晶粒尺寸，晶体为1 μ m × 0.5 μ m微晶。采用粉末XRD、扫描电镜（SEM）、共聚焦显微镜拉曼光谱（Raman spectroscopy）和傅里叶变换红外光谱（FTIR）研究了AlPO4-11的结晶过程。
AlPO4-11 microcrystalline molecular sieve was synthesized rapidly and efficiently in the rotation hydrothermal crystallization mode. In the static hydrothermal crystallization mode, the pure phase of the AlPO4-11 molecular sieve cannot be obtained, and the crystal size is large, which consists of 50-70 mu m rod crystals and 5-10 mu m spherical crystals. Compared with the static hydrothermal crystallization mode, the rotation hydrothermal crystallization mode (rotational speed : 100 r/min) can greatly shorten the crystallization time of AlPO4-11 molecular sieve(the shortest crystallization time is 40 min) and significantly reduce the grain size with the crystal being 1 mu mx0.5 mu m microcrystalline. The crystallization process of AlPO4-11 was studied by means of powder XRD, scanning electron microscope (SEM), confocal microscopy Raman spectroscopy and Fourier transform infrared (FTIR) spectroscopy.