DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yang, Yanqin | ko |
dc.contributor.author | Goh, Kunli | ko |
dc.contributor.author | Weerachanchai, Piyarat | ko |
dc.contributor.author | Bae, Tae-Hyun | ko |
dc.date.accessioned | 2019-05-29T08:25:02Z | - |
dc.date.available | 2019-05-29T08:25:02Z | - |
dc.date.created | 2019-05-29 | - |
dc.date.created | 2019-05-29 | - |
dc.date.created | 2019-05-29 | - |
dc.date.created | 2019-05-29 | - |
dc.date.issued | 2019-03 | - |
dc.identifier.citation | JOURNAL OF MEMBRANE SCIENCE, v.574, pp.235 - 242 | - |
dc.identifier.issn | 0376-7388 | - |
dc.identifier.uri | http://hdl.handle.net/10203/262325 | - |
dc.description.abstract | The physicochemical properties of filler materials are critical considerations influencing the separation performances of mixed-matrix membranes (MMMs). Herein, a three-dimensional covalent organic framework (3D-COF) with a secondary amine-containing backbone was designed to offer large surface area, high porosity and good affinity toward CO2 molecules. Membranes prepared from this 3D-COF filler and a 6FDA-DAM polyimide matrix demonstrated a more significant enhancement in the CO2/CH4 separation performance, which was unattainable by its 2D-COF analogue. Specifically, with 10 and 15 wt% loadings of 3D-COF fillers, the MMMs membranes were able to enhance the CO2 permeability by similar to 57% and 140%, respectively, at a comparable, if not better, CO2/CH4 selectivity than the unfilled membrane. Furthermore, glassy polymers of high fractional free volume such as 6FDA-DAM tend to suffer from a ubiquitous loss in performance over time due to a physical aging effect. In this regard, the 3D-COF was effective in slowing down the aging process by capitalizing on its high surface area and amine functional groups to immobilize and rigidify the 6FDA-DAM polymer chains, preventing the collapse of the free volume. This allows 97% of the initial membrane performances to be effectively retained after 240 days of aging. Our findings suggest the potential of morphologically-tuned COFs to develop high-performance MMMs with strong practical relevance. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | 3D covalent organic framework for morphologically induced high-performance membranes with strong resistance toward physical aging | - |
dc.type | Article | - |
dc.identifier.wosid | 000455487100024 | - |
dc.identifier.scopusid | 2-s2.0-85059352737 | - |
dc.type.rims | ART | - |
dc.citation.volume | 574 | - |
dc.citation.beginningpage | 235 | - |
dc.citation.endingpage | 242 | - |
dc.citation.publicationname | JOURNAL OF MEMBRANE SCIENCE | - |
dc.identifier.doi | 10.1016/j.memsci.2018.12.078 | - |
dc.contributor.localauthor | Bae, Tae-Hyun | - |
dc.contributor.nonIdAuthor | Yang, Yanqin | - |
dc.contributor.nonIdAuthor | Goh, Kunli | - |
dc.contributor.nonIdAuthor | Weerachanchai, Piyarat | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | 3D covalent organic framework | - |
dc.subject.keywordAuthor | Mixed-matrix membrane | - |
dc.subject.keywordAuthor | CO2 capture | - |
dc.subject.keywordAuthor | CO2/CH4 separation | - |
dc.subject.keywordAuthor | Physical aging | - |
dc.subject.keywordPlus | MIXED-MATRIX MEMBRANES | - |
dc.subject.keywordPlus | GAS PERMEATION | - |
dc.subject.keywordPlus | CO2 | - |
dc.subject.keywordPlus | SEPARATION | - |
dc.subject.keywordPlus | PERMEABILITY | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | POLYMERS | - |
dc.subject.keywordPlus | MMMS | - |
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