Jump to main content
Jump to site search


Design of gradient nanopores in phenolics for ultrafast water permeation

Author affiliations

Abstract

Membrane technology is playing a pivotal role in providing potable water to our thirsty planet. However, the strong demand for highly permeable and durable membranes with affordable costs remains. Such membranes are synthesized herein by designing gradient nanopores in low-cost phenolics. The gradient nanopores are achieved by spontaneous assembly of phenolic nanoparticles with gradually enlarged sizes. These particles nucleate and grow as a result of ZnCl2-accelerated thermopolymerization of resol in the progressive downward gelating polymer. Subsequent removal of the gelated polymer and ZnCl2 exposes the gradient nanopores. The gradient nanopores endow the phenolic structures with unprecedented permselectivity when used in membrane separation, totally rejecting fine particulates down to 5 nm dispersed in water or aggressive solvents while allowing water to permeate up to two orders of magnitude faster than other membranes with similar rejections. Our work opens up an avenue for the rational design and affordable synthesis of ultrafast membranes.

Graphical abstract: Design of gradient nanopores in phenolics for ultrafast water permeation

Back to tab navigation

Supplementary files

Publication details

The article was received on 08 Jul 2018, accepted on 11 Dec 2018 and first published on 11 Dec 2018


Article type: Edge Article
DOI: 10.1039/C8SC03012J
Citation: Chem. Sci., 2019, Advance Article
  • Open access: Creative Commons BY license
  •   Request permissions

    Design of gradient nanopores in phenolics for ultrafast water permeation

    L. Guo, Y. Yang, F. Xu, Q. Lan, M. Wei and Y. Wang, Chem. Sci., 2019, Advance Article , DOI: 10.1039/C8SC03012J

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements