The polymeric upper bound for N<inf>2</inf>/NF<inf>3</inf> separation and beyond; ZIF-8 containing mixed matrix membranes

Sunghwan Park, Woo Ram Kang, Hyuk Taek Kwon, Soobin Kim, Myungeun Seo, Joona Bang, Sang-Hyup Lee, Hae Kwon Jeong, Jong Suk Lee

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Global production for NF<inf>3</inf> is continuously increasing, especially due to its heavy consumption in the semiconductor industry. Even though the amount of its emission is relatively small compared to other greenhouse gases, particularly CO<inf>2</inf>, the relatively long atmospheric lifetime of NF<inf>3</inf> makes its emission cumulative, possibly contributing to the global climate change. Membrane-based separation techniques are very promising for the energy-efficient NF<inf>3</inf> recovery. It is, therefore, critically important to evaluate the N<inf>2</inf>/NF<inf>3</inf> separation performance by using commercial polymeric membranes. Here, for the first time, the empirical N<inf>2</inf>/NF<inf>3</inf> upper bound relationship is established by using a wide variety of commercial polymeric membranes including both glassy and rubbery polymers based on their single gas (i.e. N<inf>2</inf> and NF<inf>3</inf>) permeation characterization. Among those tested, 6FDA-DAM:DABA (3:2), Teflon<sup>®</sup> AF 2400 and PTMSP exhibited relatively high N<inf>2</inf>/NF<inf>3</inf> separation performance. The theoretical N<inf>2</inf>/NF<inf>3</inf> upper bound curve was also defined and found comparable with our empirical upper bound limit. In an effort to improve the N<inf>2</inf>/NF<inf>3</inf> separation performance, mixed matrix membranes were prepared by incorporating zeolitic imidazolate framework molecular sieves into Matrimid<sup>®</sup> 5218. The effects of solvents, particle sizes, and ligands on the transport properties in mixed matrix membranes were investigated.

Original languageEnglish
Pages (from-to)29-39
Number of pages11
JournalJournal of Membrane Science
Volume486
DOIs
Publication statusPublished - 2015 Jul 5

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membranes
Membranes
Polymeric membranes
matrices
Furylfuramide
Gases
Molecular sieves
Polytetrafluoroethylene
Polytetrafluoroethylenes
Semiconductors
Greenhouse gases
Permeation
Climate change
Transport properties
Climate Change
greenhouses
teflon (trademark)
climate change
absorbents
Polymers

Keywords

  • Mixed matrix membranes
  • N<inf>2</inf>/NF<inf>3</inf> separation
  • Polymeric upper bound
  • ZIF-8

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Science(all)
  • Biochemistry
  • Filtration and Separation

Cite this

The polymeric upper bound for N<inf>2</inf>/NF<inf>3</inf> separation and beyond; ZIF-8 containing mixed matrix membranes. / Park, Sunghwan; Kang, Woo Ram; Kwon, Hyuk Taek; Kim, Soobin; Seo, Myungeun; Bang, Joona; Lee, Sang-Hyup; Jeong, Hae Kwon; Lee, Jong Suk.

In: Journal of Membrane Science, Vol. 486, 05.07.2015, p. 29-39.

Research output: Contribution to journalArticle

Park, Sunghwan ; Kang, Woo Ram ; Kwon, Hyuk Taek ; Kim, Soobin ; Seo, Myungeun ; Bang, Joona ; Lee, Sang-Hyup ; Jeong, Hae Kwon ; Lee, Jong Suk. / The polymeric upper bound for N<inf>2</inf>/NF<inf>3</inf> separation and beyond; ZIF-8 containing mixed matrix membranes. In: Journal of Membrane Science. 2015 ; Vol. 486. pp. 29-39.
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