Splicing growth of zeolite 4A in hydrothermal system

来源期刊：中国有色金属学报(英文版)2002年第6期

论文作者：李酽 汪信 杨绪杰 张术根

文章页码：1024 - 1030

Key words：splicing growth, zeolite, aggregating growth, crystal growth, nanocrystal, hydrothermal synthesis

Abstract: The morphology evolution of zeolite 4A in hydrothermal system was studied via XRD, TEM and electron diffractometry. A phenomenon of aggregation of nano-crystals of zeolite 4A exists in the crystallization process, and microcrystals are derived from nano-crystal aggregating directly. The splicing growth model of zeolite 4A is described as: 1)an induction period which exists at the beginning of crystallization, 2)followed by many nano-meter crystals initiating immediately, and 3)the nanocrystals congregated as slices and spliced with each other to form a larger crystal.