Synthesis and characterisation of zeolite LTA with sheet structure

Micro & nano letters

article

Peng Wang¹  Qi Sun¹ 

[1] College of Materials and Metallurgy, Guizhou University

关键词: desorption;    zeolites;    electron diffraction;    adsorption;    crystal structure;    transmission electron microscopy;    X-ray diffraction;    nitrogen;    materials preparation;    zeolite Linde type A;    crystal structure;    kaolin;    X-ray diffraction;    crystallinity;    transmission electron microscopy;    selected area electron diffraction pattern;    body-centred cube sheet structure;    elemental mapping;    lamellar structure;    N2 adsorption-desorption;    surface area;    N2;   

DOI  :  10.1049/mnl.2019.0793

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

This work reports a simple and effective method for the rapid synthesis of zeolite Linde Type A (LTA) with sheet structure from kaolin. X-ray diffraction results confirm the purity and crystallinity of the synthesised zeolite LTA with sheet structure. Transmission electron microscopy images clearly show the sheet-like structure of the synthesised zeolite LTA. The selected area electron diffraction pattern indicates that the crystal structure type of the synthesised zeolite LTA with sheet structure is the body-centred cube. Meanwhile, the elemental mapping confirms the coexistence and uniform distribution of Si, Al, O and Na elements in the lamellar structure of the synthesised zeolite LTA. In addition, N 2 adsorption–desorption technique indicates that the surface area of the synthesised zeolite LTA with sheet structure increases up to 39.7994 m 2 ·g −1 , a much higher value than that of zeolite LTA.

【 授权许可】

CC BY|CC BY-ND|CC BY-NC|CC BY-NC-ND