Highly efficient synthesis of LTA-type aluminophosphate molecular sieve by improved ionothermal method with low dosage of structure-directing agent

doi:10.15541/jim20160062

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Highly efficient synthesis of LTA-type aluminophosphate molecular sieve by improved ionothermal method with low dosage of structure-directing agent
	Zhao, Xin-Hong; Gao, Xiang-Ping; Zhao, Jiang-Bo; Zhang, Xiao-Xiao; Hao, Zhi-Xin
刊名	Wuji Cailiao Xuebao/Journal of Inorganic Materials
	2016-11-01
卷号	31 期号:11 页码:1212-1218
关键词	Amines Ionic liquids Molar ratio Molecular sieves Porous materials Structural optimization Zeolites Crystallization temperature Hierarchical porous Hierarchically porous materials Ionothermal synthesis Seed crystal Solvent free synthesis Structure directing agents Structure-directing effect
ISSN号	1000324X
DOI	10.15541/jim20160062
英文摘要	Aluminophosphate molecular sieve with LTA topology was efficiently synthesized by seed-assisted and improved ionothermal method with low dosages of organic amines and ionic liquids (ILs). The influences of organic amine type, crystallization temperature, amount of organic species, and seed crystals on the synthesis of LTA-type material were investigated, to refine the synthetic conditions. The results indicate that LTA-type molecular sieve is synthesized even by adding small amount of seed crystal into initial gels, of which both molar ratios of ILs/Al2O3 and Amine/Al2O3 are decreased to 0.67. Utilization rate of inorganic raw materials during as-synthesis is up to 86% under optimal conditions. Structure and morphology of the products, together with organic species occluded in cavities were fully analyzed by XRD, SEM, N2 physisorption, TG-DTA, CHN elemental analysis, and liquid 13C NMR. The results show that the resultant LTA molecular sieve is a hierarchically porous material with both micropores and mesopores inside. It is the cooperative structure-directing effect between morpholine and 1-ethyl-3-methylimidazolium cations that guides the formation of LTA molecular sieve. © 2016, Science Press. All right reserved.
WOS研究方向	Materials Science
语种	中文
出版者	Science Press
WOS记录号	WOS:000389291000009
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112566]
专题	石油化工学院
作者单位	School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zhao, Xin-Hong,Gao, Xiang-Ping,Zhao, Jiang-Bo,et al. Highly efficient synthesis of LTA-type aluminophosphate molecular sieve by improved ionothermal method with low dosage of structure-directing agent[J]. Wuji Cailiao Xuebao/Journal of Inorganic Materials,2016,31(11):1212-1218.
APA	Zhao, Xin-Hong,Gao, Xiang-Ping,Zhao, Jiang-Bo,Zhang, Xiao-Xiao,&Hao, Zhi-Xin.(2016).Highly efficient synthesis of LTA-type aluminophosphate molecular sieve by improved ionothermal method with low dosage of structure-directing agent.Wuji Cailiao Xuebao/Journal of Inorganic Materials,31(11),1212-1218.
MLA	Zhao, Xin-Hong,et al."Highly efficient synthesis of LTA-type aluminophosphate molecular sieve by improved ionothermal method with low dosage of structure-directing agent".Wuji Cailiao Xuebao/Journal of Inorganic Materials 31.11(2016):1212-1218.