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May 10, 2026Industrial & Engineering Chemistry Research

Synergistic Enhancement of CO 2 Separation Performance in Pebax 1657 Membranes via Carboxylated Nanocellulose and Glycine Incorporation

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Authors

XWXinyu WangWLWeiyuan LiangWHWen Hou

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Overview

Randomized trial shows improved CO2 separation in membranes, indicating better gas separation solutions.

Key Points

  • To enhance CO2 separation performance in Pebax 1657 membranes using carboxylated nanocellulose and glycine.
  • Constructed mixed matrix membranes by integrating carboxylated nanocellulose fibers into Pebax 1657.
  • Functionalized with glycine to create facilitated transport pathways under humid conditions.
  • Conducted stability tests to assess gas separation performance during the testing period.
  • Optimal membranes with 5 wt % CNF achieved a CO2 permeability of 167.7 Barrer and CO2/N2 selectivity of 63.5.
  • Glycine incorporation improved CO2 permeability while maintaining selectivity during humid mixed-gas conditions.
  • Membranes approached the Robeson upper bound, confirming enhanced effectiveness for CO2 separation.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a0021e6c8f74e3340f9cdb4https://doi.org/10.1021/acs.iecr.6c00585
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