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Issue 9, 2019
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Self-assembled ionic nanofibers derived from amino acids for high-performance particulate matter removal

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Abstract

Particulate matter (PM) is a primary contributor to air pollution, which is a serious threat to humans. It remains challenging to develop “green” high-performance air filters. Bio-based fibers as air-filtration materials are drawing much more attention. In this work, the first demonstration of applying absolutely ionic nanofibers derived from renewable phenylalanine methyl ester hydrochloride to produce high-performance air filters is successfully shown by employing a simple and convenient in situ ionic self-assembly approach. These bio-based filters exhibit exceptional comprehensive PM filtration performance, where the average PM removal efficiencies are above 99.5% and the pressure drops are 5 Pa resulting in record high quality factor (QF) values above 1 Pa−1. Quantum-chemistry calculations were performed to evaluate the surface properties of the ionic fibers. The devised amino acid-based PM filter may be used as a high-efficiency “green” filter.

Graphical abstract: Self-assembled ionic nanofibers derived from amino acids for high-performance particulate matter removal

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Publication details

The article was received on 26 Nov 2018, accepted on 24 Jan 2019 and first published on 29 Jan 2019


Article type: Paper
DOI: 10.1039/C8TA11382C
Citation: J. Mater. Chem. A, 2019,7, 4619-4625

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    Self-assembled ionic nanofibers derived from amino acids for high-performance particulate matter removal

    L. Zhang, W. Yuan, Z. Zhang, G. Zhang, H. Chen, N. Zhao, L. He and G. Tao, J. Mater. Chem. A, 2019, 7, 4619
    DOI: 10.1039/C8TA11382C

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