Synthesis of conjugated microporous polymer and its embedding in porous nanofibers for visible-light-driven photocatalysis with reusability
- Authors
- Lee, J.J.; Noh, W.; Huh, T.-H.; Kwark, Y.-J.; Lee, T.S.
- Issue Date
- Dec-2020
- Publisher
- Elsevier Ltd
- Keywords
- Conjugated microporous polymers; Porous PAN nanofibers; Visible-light-driven photocatalysis
- Citation
- Polymer, v.211
- Journal Title
- Polymer
- Volume
- 211
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/39762
- DOI
- 10.1016/j.polymer.2020.123060
- ISSN
- 0032-3861
- Abstract
- Porous polyacrylonitrile (P-PAN) nanofibers containing a conjugated microporous polymer (CMP) with photocatalytic ability were electrospun to obtain a reusable photocatalyst composite. P-PAN nanofiber was used as a robust supporting matrix for the CMP and could prevent undesirable CMP leakage during use. To provide porous nanofibers, poly (vinyl pyrrolidone) was used as a sacrificial porogen, allowing facile access of dye molecules to degrade, or of the organic reagent to react. When exposed to visible light, the photocatalyst composite degraded rhodamine B (RhB) by more than 90% in 150 min. In addition, more than 85% of the RhB degradation was maintained even after 10 cycles of reuse. The nanofibrous photocatalyst was able to oxidize various benzylamine derivatives to convert to N-benzylbenzaldimines under visible light. It could also be reused several times for repeated photocatalytic organic reaction after simple washing. © 2020 Elsevier Ltd
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