Adsorption of volatile organic compounds over MIL-125-NH2. (1st November 2018)

• Record Type: Journal Article
• Authors: Kim, Bomi; Lee, Yu-Ri; Kim, Hee-Young; Ahn, Wha-Seung
• Is Part Of: Polyhedron. Volume 154(2018)
• Page Start: 343
• Page End: 349
• Publication Date: 2018-11-01
• Subjects: Metal–organic frameworks -- Ti-MIL-125-NH2 -- Volatile organic compounds -- Adsorption -- Formaldehyde; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2018.08.010
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: Adsorption of volatile organic compounds (VOCs) over MIL-125-NH2 was investigated by measuring their adsorption isotherms. Significant amounts of the VOCs were adsorbed, and their adsorption capacities followed the order of increasing polarity. Abstract: Volatile organic compounds (VOCs) cause environmental and health problems by forming photochemistry smog, and development of an effective adsorbent for their removal is important. In this work, adsorption of a series of selected VOCs over an amine-functionalized metal organic framework, MIL-125-NH2, was investigated by measuring their adsorption isotherms at three different temperatures. Significant amounts of the VOCs were adsorbed, and their adsorption capacities increased with the increasing order of polarity ( p -xylene < toluene < benzene < acetone < isopropanol). In addition, formaldehyde breakthrough capacities were measured and MIL-125-NH2, exhibited a clearly superior performance to other MOFs, probably because of the synergistic effects provided by the amine groups that strongly interacting with the formaldehyde and the small micropores in MIL-125-NH2 .