Microwave-assisted ionothermal synthesis of Fe-LEV molecular sieve with high iron content in low-dosage of eutectic mixture

doi:10.1016/j.micromeso.2018.09.005

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Microwave-assisted ionothermal synthesis of Fe-LEV molecular sieve with high iron content in low-dosage of eutectic mixture
	Zhao, Xinhong; Duan, Weiting; Wang, Qingpeng; Ji, Dong; Zhao, Yu; Li, Guixian
刊名	MICROPOROUS AND MESOPOROUS MATERIALS
	2019-02
卷号	275 页码:253-262
关键词	LEV zeolite Ionothermal synthesis Microwave
ISSN号	1387-1811
DOI	10.1016/j.micromeso.2018.09.005
英文摘要	Iron-containing aluminophosphate molecular sieve with LEV topology (Fe-LEV molecular sieve) has been successfully synthesized by a microwave-assisted ionothermal method in low-dosage of eutectic mixture solvent, which is the first example of Fe incorporated aluminophosphates with the LEV-zeotype structure. The optimum synthetic conditions of this material were refined. The structure and morphology of a representative Fe-LEV sample, as well as the structure directing effect of eutectic mixture were thoroughly analyzed by various techniques including XRD, Al-27 and P-31 MAS NMR, ICP-AES, DR UV-Vis, ESR, XPS, N-2 adsorption/desorption, NH3-TPD, SEM, TEM, EDX, CHN elemental analysis, TG-DTA and FT-IR spectra. It was found that the combined effect of the starting precursor and a suitable structure-directing agent yielded an appropriate crystallization system of Fe-LEV molecular sieve, for which choline cations and intact tetraethylammonium bromide molecules were identified to be the structure-directing agents. The calcined Fe-LEV molecular sieve exhibits higher specific surface area and iron content, as well as a medium acidity and special hierarchical structure with both micro pores and mesopores, implying that these zeolitic materials have a great potential in some industrially relevant applications.
资助项目	National Natural Science Foundation of China[21306072][21666019] ; Natural Science Foundation of Gansu Province, China[17JR5RA124]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000452942500030
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32106]
专题	石油化工学院
通讯作者	Zhao, Xinhong
作者单位	Lanzhou Univ Technol, Sch Petrochem Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Xinhong,Duan, Weiting,Wang, Qingpeng,et al. Microwave-assisted ionothermal synthesis of Fe-LEV molecular sieve with high iron content in low-dosage of eutectic mixture[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2019,275:253-262.
APA	Zhao, Xinhong,Duan, Weiting,Wang, Qingpeng,Ji, Dong,Zhao, Yu,&Li, Guixian.(2019).Microwave-assisted ionothermal synthesis of Fe-LEV molecular sieve with high iron content in low-dosage of eutectic mixture.MICROPOROUS AND MESOPOROUS MATERIALS,275,253-262.
MLA	Zhao, Xinhong,et al."Microwave-assisted ionothermal synthesis of Fe-LEV molecular sieve with high iron content in low-dosage of eutectic mixture".MICROPOROUS AND MESOPOROUS MATERIALS 275(2019):253-262.