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journal article·2024-03-04

Size-Exclusion Separation of Hexane Isomers by a Y-MOF Built on {Y(COO)3}n Chains

Xin Zhou, Lu−Lu Ma, Liang Yu, Kang Zhou, Kecai Xiong, Yanli Gai, Jing Li, Hao Wang

ACS Materials Letters· Volume 6· Issue 3
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Source abstract

Abstract

Due to the similar physicochemical properties, the separation of hexane isomers is a challenging task, but it is, however, of high importance in the petrochemical industry. In this study, we present a three-dimensional (3D) Y-based MOF, Y(BTB) (denoted as HIAM-318, H 3 BTB = 1,3,5-tri(4-carboxyphenyl)benzene), with a rarely reported bnn topology. HIAM-318 possesses one-dimensional (1D) channels with appropriate pore size, leading to size-exclusion-based separation of hexane isomers. It adsorbs linear n -hexane (nHEX) and monobranched 3-methylpentane (3MP) but can barely accommodate dibranched 2,2-dimethylbutane (22DMB). Multicomponent breakthrough experiments confirmed the separation capability. DFT calculations and computational modeling verified the size-sieving separation mechanism and revealed the domains of guest–host interactions.
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Research context

OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Covalent Organic Framework Applications · Membrane Separation and Gas Transport

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China

Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Blvd., Shenzhen, Guangdong 518055, China

Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd., Piscataway, New Jersey 08854, United States

Funding

Natural Science Foundation of Xuzhou Municipality · Science, Technology and Innovation Commission of Shenzhen Municipality · National Natural Science Foundation of China · Jiangsu Higher Education Institutions

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