Bimetallic metal-organic frameworks nanocages as multi-functional fillers for water-selective membranes

doi:10.1016/j.memsci.2017.09.056

IHEP OpenIR > 实验物理中心

	Bimetallic metal-organic frameworks nanocages as multi-functional fillers for water-selective membranes
	Cheng, XX; Jiang, ZY; Cheng, XP; Guo, S; Tang, L; Yang, H; Wu, H; Pan, FS; Zhang, P; Cao, XZ; Wang, BY; 张鹏(正); Cao XZ(曹兴忠); Wang BY(王宝义)
	2018
发表期刊	JOURNAL OF MEMBRANE SCIENCE (IF:6.035[JCR-2016],5.983[5-Year])
ISSN	0376-7388
EISSN	1873-3123
卷号	545 页码:19-28
文章类型	Article
摘要	Although metal-organic frameworks (MOFs) with well-defined regular and porous structure have emerged as a family of nanoporous building blocks, the great potential of MOFs as multi-functional fillers for hybrid membranes deserves in-depth exploitation. In this study, bimetallic MOF nanocages, Fe-III-HMOF-5, were prepared and incorporated into sodium alginate (SA) matrix to fabricate water-selective nanohybrid membranes. Introduction of Fe-III ions into MOF-5 creates more coordinatively unsaturated sites, which leads to preferential dissolution of water molecules over ethanol molecules, thus elevating the solubility selectivity. The hollow structure of FeIII-HMOF-5 ensures the free diffusion of water molecules. The synergistic regulation of chemical composition and physical structure of MOFs endows the hybrid membranes with remarkably elevated separation factor and permeation flux. Taking dehydration of 90 wt% ethanol aqueous solution as model system, the hybrid membrane containing FeIII-HMOF-5 exhibits the highest separation performance with separation factor of 3423 and permeation flux of 1540 g/m(2) h, much higher than those for pure SA membrane and the hybrid membranes incorporating hollow MOF-5 (HMOF-5) and MOF-5. Moreover, the hybrid membranes containing FeIII-HMOF-5 display remarkably superior physicochemical stabilities and long-term operation stability. This study demonstrates a promising prospect of heterometallic hollow MOFs as multi-functional fillers in high-performance hybrid membranes.
关键词	Bimetallic metal-organic frameworks Iron ion Nanocage Hybrid membrane Water-selective permeation
DOI	10.1016/j.memsci.2017.09.056
关键词[WOS]	MIXED-MATRIX MEMBRANES ; COMPOSITE MEMBRANES ; SODIUM ALGINATE ; PERVAPORATION PERFORMANCE ; SEPARATION PERFORMANCE ; CATALYTIC-PROPERTIES ; ETHANOL DEHYDRATION ; CARBON NANOTUBES ; HYBRID MEMBRANE ; STABILITY
收录类别	SCI ; EI
语种	英语
WOS研究方向	Engineering ; Polymer Science
WOS类目	Engineering, Chemical ; Polymer Science
WOS记录号	WOS:000413270200003
EI入藏号	20173804192026
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://ir.ihep.ac.cn/handle/311005/285490
专题	实验物理中心多学科研究中心
作者单位	中国科学院高能物理研究所
第一作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Cheng, XX,Jiang, ZY,Cheng, XP,et al. Bimetallic metal-organic frameworks nanocages as multi-functional fillers for water-selective membranes[J]. JOURNAL OF MEMBRANE SCIENCE,2018,545:19-28.
APA	Cheng, XX.,Jiang, ZY.,Cheng, XP.,Guo, S.,Tang, L.,...&王宝义.(2018).Bimetallic metal-organic frameworks nanocages as multi-functional fillers for water-selective membranes.JOURNAL OF MEMBRANE SCIENCE,545,19-28.
MLA	Cheng, XX,et al."Bimetallic metal-organic frameworks nanocages as multi-functional fillers for water-selective membranes".JOURNAL OF MEMBRANE SCIENCE 545(2018):19-28.