The Effect of Pretreatment Method on the Preparation of Micro-mesoporous ZSM-5/Y-Al2O3 Composite Materials
1 School of Chemical Engineering, China University of Mining & Technology, Xuzhou, Jiangsu, China 221008
2 High-Tech Research Institute Of China University of Mining and Technology, Lianyungang, Jiangsu, China 222000
A series of ZSM-5/γ-Al2O3 composite materials were prepared under various pretreatment method; The physicochemical properties of composite materials were investigated by XRD, SEM, FTIR to find out optimal pretreatment method. The results showed that the composite materials performance better structure property when γ- Al2O3 was firstly immersed in TPAOH solution under reflux condensation for a period of time and then immersed into anhydrous alcohol before mixed with ZSM-5 precursor solution. The result of infrared spectrum indicated that the formation of Al-OH bond played a key role in the synthesis of micro-mesoporous ZSM-5/γ-Al2O3 composite materials.
Key words: γ-Al2O3 / pretreatment method / TPAOH / ZSM-5/γ-Al2O3 / micro-mesoporopus
© The Authors, published by EDP Sciences, 2016
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