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| One-Step Synthesis of High-Silica ZSM-5 in the Absence of Organic Amine |
| Author Name | Affiliation | E-mail | | HU Su-Fang | College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China | | | WANG Yan | College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China | | | MA Jing-Hong | College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China | majinghong@tyut.edu.cn | | LI Rui-Feng | College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China | |
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| Abstract: The plate-like high-silica ZSM-5 zeolite (nSiO2/nAl2O3>90) with uniform morphology was synthesized by hydrothermal method at a lower crystallization temperature (130℃) in the absence of organic amine and seed. The effects on ratio of the amount of substance of reactants on the synthesis of high-silica ZSM-5 zeolite were systematically investigated. The synthesized high-silica ZSM-5 zeolite was characterized by XRD, FT-IR, SEM, N2 adsorption/desorption and 29Si MAS NMR techniques. Results confirmed that the synthesized ZSM-5 zeolite (nC2H5OH/nSiO2=2.8, nNa2O/nSiO2=0.14, nSiO2/nAl2O3=150) exhibited high crystallinity of the product. The specific surface area and micropore volume were 409 m2·g-1 and 0.14 cm3·g-1. 29Si MAS NMR analysis showed that the nSiO2/nAl2O3 was 96.4. |
| Keywords: absence of organic amine ZSM-5 zeolite high-silica hydrothermal synthesis |
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| HU Su-Fang,WANG Yan,MA Jing-Hong,LI Rui-Feng.One-Step Synthesis of High-Silica ZSM-5 in the Absence of Organic Amine[J].Chinese Journal of Inorganic Chemistry,2019,35(12):2253-2259. |
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