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Highly efficient synthesis of LTA-type aluminophosphate molecular sieve by improved ionothermal method

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Xinhong Zhao, Jiangbo Zhao, Chang-Yang Chiang, Zhengshan Li, Yu Zhao, Wuzong Zhou

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Abstract

LTA-type aluminophosphate molecular sieve has been successfully synthesized by improvedionothermal method from a gel containing low-dosage ionic liquids. The optimum syntheticconditions of this material are refined. The resultant LTA molecular sieves were characterized byXRD, SEM, TG-DTA, CHN elemental analysis, solution 13C NMR, EDX, TEM and N2physisorption. The composition of the resulting LTA-type molecular sieves is determined to be(Al12P12O48)(C4H9NO)2(C8H15N2+)2(F-)2, for which morpholine together with1-butyl-3-methylimidazolium cations act as the structure-directing agent. The high zeolite yield, as well as the high specific surface area and micropore volume for the calcined LTA-type materials imply that these zeolitic materials have a high potential in applications.
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Original languageEnglish
Pages (from-to)2444-2450
Number of pages7
JournalNew Journal of Chemistry
Volume40
Issue number3
Early online date7 Jan 2016
DOIs
Publication statusPublished - 1 Mar 2016

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