Xinmei Lu, Liying Liu, Haoran Liu, Guo Tian, Gao Peng, Li Zhuo, Zhe Wang
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Zeolite-X synthesized from halloysite nanotubes and its application in CO2 capture
Background
: Zeolite-X has good selective adsorption, ion exchange and hydrophilic properties, and has been widely studied and applied in the chemical industry. Halloysite nanotubes (HNTs), with a unique tubular microstructure, natural availability, and low cost. The use of HNTs to synthesize X zeolites reduces production costs, leading to large-scale industrial production applications.
Methods
: In this study, zeolite-X, with high crystallinity and a large specific surface area, was synthesized, for the first time, by purifying HNTs, calcining HNTs and hydrothermal synthesis. The influence of calcination time, crystallization temperature, crystallization time and NaOH concentration on the crystal phase and the static saturated water absorption of zeolite-X were investigated. The structure, shape and thermal stability of the synthesized zeolite-X were characterized by XRD, TEM, and FT-IR techniques and analysis methods.
Significant findings
: Zeolite-X synthesized by this method has good crystallinity, uniform particle size and similar thermal stability to industrial zeolite. This study reports a new synthesis method to obtain zeolite 13X, with potential application in CO2 capture from flue gases.
期刊介绍：
Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.
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