Bio-inspired polydopamine
A versatile and powerful platform for covalent synthesis of molecular sieve membranes
- authored by
- Qian Liu, Nanyi Wang, Jürgen Caro, Aisheng Huang
- Abstract
Inspired by the bioadhesive ability of the marine mussel, a simple, versatile, and powerful synthesis strategy was developed to prepare highly reproducible and permselective molecular sieve membranes by using polydopamine as a novel covalent linker. Attributing to the formation of strong covalent and noncovalent bonds, ZIF-8 nutrients are attracted and bound to the support surface, thus promoting the ZIF-8 nucleation and the growth of uniform, well intergrown, and phase-pure ZIF-8 molecular sieve membranes. The developed ZIF-8 membranes show high hydrogen selectivity and thermal stability. At 150 C and 1 bar, the mixture separation factors of H2/CO2, H 2/N2, H2/CH4, and H 2/C3H8 are 8.9, 16.2, 31.5 and 712.6, with H2 permeances higher than 1.8 × 10-7 mol·m-2·s-1·Pa-1, which is promising for hydrogen separation and purification.
- Organisation(s)
-
Institute of Physical Chemistry and Electrochemistry
- External Organisation(s)
-
Chinese Academy of Sciences (CAS)
- Type
- Article
- Journal
- Journal of the American Chemical Society
- Volume
- 135
- Pages
- 17679-17682
- No. of pages
- 4
- ISSN
- 0002-7863
- Publication date
- 27.11.2013
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Catalysis, Chemistry(all), Biochemistry, Colloid and Surface Chemistry
- Sustainable Development Goals
- SDG 14 - Life Below Water
- Electronic version(s)
-
https://doi.org/10.1021/ja4080562 (Access:
Closed)
