Sustainable Synthesis of ZSM-5 Zeolite from Rice Husk Ash Without Addition of Solvents

Sustainable Synthesis of ZSM-5 Zeolite from Rice Husk Ash Without Addition of Solvents The development of sustainable and environmentally friendly techniques for synthesizing zeolites has attracted much atten- tion, as the use of solvents in the hydrothermal synthesis of zeolites is a major obstacle for realizing green and sustainable synthesis ways. As a solid waste, it still has a challenge for zeolites synthesis from rice husk ash by solvent-free method to increase its recovery rate and economic value. Our approach focused on reutilization of rice husk ash by converting it to ZSM-5 zeolite without employing solvents. The influence of TPABr/SiO, Na CO ·10H O/SiO and synthesis time on 2 2 3 2 2 ZSM-5 crystal growth and ZSM-5 zeolite properties were evaluated by various analytical methods. The results suggested that the optimal conditions of TPABr/SiO, Na CO ·10H O/SiO and synthesis time for the ZSM-5 synthesis were 0.125, 2 2 3 2 2 0.3 and 72 h, respectively. Base on the optimal synthesis condition, the recovery rate of Si and Al were 98%, which were 70% compared with that of hydrothermal method. The synthesis process was solid phase conversion, N a CO ·10H O played 2 3 2 key role in promoting hydrolysis and condensation of Si–O–Si and Si–O–Al bonds during synthesis process. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Waste and Biomass Valorization Springer Journals

Sustainable Synthesis of ZSM-5 Zeolite from Rice Husk Ash Without Addition of Solvents

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Science+Business Media B.V., part of Springer Nature
Subject
Engineering; Engineering, general; Environment, general; Renewable and Green Energy; Industrial Pollution Prevention; Waste Management/Waste Technology; Environmental Engineering/Biotechnology
ISSN
1877-2641
eISSN
1877-265X
D.O.I.
10.1007/s12649-018-0356-0
Publisher site
See Article on Publisher Site

Abstract

The development of sustainable and environmentally friendly techniques for synthesizing zeolites has attracted much atten- tion, as the use of solvents in the hydrothermal synthesis of zeolites is a major obstacle for realizing green and sustainable synthesis ways. As a solid waste, it still has a challenge for zeolites synthesis from rice husk ash by solvent-free method to increase its recovery rate and economic value. Our approach focused on reutilization of rice husk ash by converting it to ZSM-5 zeolite without employing solvents. The influence of TPABr/SiO, Na CO ·10H O/SiO and synthesis time on 2 2 3 2 2 ZSM-5 crystal growth and ZSM-5 zeolite properties were evaluated by various analytical methods. The results suggested that the optimal conditions of TPABr/SiO, Na CO ·10H O/SiO and synthesis time for the ZSM-5 synthesis were 0.125, 2 2 3 2 2 0.3 and 72 h, respectively. Base on the optimal synthesis condition, the recovery rate of Si and Al were 98%, which were 70% compared with that of hydrothermal method. The synthesis process was solid phase conversion, N a CO ·10H O played 2 3 2 key role in promoting hydrolysis and condensation of Si–O–Si and Si–O–Al bonds during synthesis process.

Journal

Waste and Biomass ValorizationSpringer Journals

Published: May 28, 2018

References

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