Organic template-free synthesis of ZSM-5 zeolite from coal-series kaolinite

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• 作者：Feng Pan ; Xuchen Lu ; Yun Wang ; Shiwei Chen ; Tizhuang Wang ; Yan Yan
• 关键词：Organic template-free ; ZSM-5 ; Coal-series kaolin ; Heterogeneous synthesis ; Microstructure ; Porous materials
• 刊名：Materials Letters
• 出版年：15 January, 2014
• 年：2014
• 卷：115
• 期：Complete
• 页码：5-8
• 全文大小：746 K

文摘

ZSM-5 was successfully synthesized by a template-free method using coal-series kaolinite as the only silica and alumina source. The physicochemical properties of obtained samples were characterized by XRD, SEM, FT-IR and nitrogen adsorption. According to the results, the relative crystallinity of template free ZSM-5 was ca. 94.2%, and crystal size was about 4.0 渭m. Due to the absence of an organic template during the synthesis process, the obtained ZSM-5 samples have an opened pore system and could avoid calcination, which could reduce the cost and avoid generating environmental pollution. Furthermore, the process of heterogeneous synthesis for ZSM-5 using kaolinite as a silica source without an organic template has been discussed.