Fabrication and Evaluation of Bio-Based Nanocomposite TFC Hollow Fiber Membranes for Enhanced CO2 Capture

ACS Applied Materials & Interfaces
Zhongde DaiLiyuan Deng

Abstract

Nanocellulose is a promising and sustainable biobased nanomaterial because of its excellent mechanical properties, biocompatibility, natural abundance, and especially its high aspect ratio. Interest in applying nanocellulose as nanofillers in membrane fabrication has been growing rapidly in recent years. In the present work, nanocellulose crystals (CNCs) and nanocellulose fibers (CNFs) were incorporated into polyvinyl alcohol (PVA) to prepare evenly dispersed nanocomposites. The resultant nanocomposite materials containing up to 80 wt % of nanocellulose were coated as defect-free, thin-film-composite selective layers onto hollow fiber membrane substrates via dip-coating for efficient CO2 capture. Thermogravimetric analysis, Fourier-transform infrared, X-ray diffraction, scanning transmission electron microscopy, scanning electron microscopy, and humid mixed gas permeation test were used to evaluate the nanocomposite materials and the membranes. The resultant PVA/CNC nanocomposite membranes exhibit both higher CO2 permeance and CO2/N2 selectivity compared to the PVA/CNF membranes and neat PVA membranes. The addition of CNCs showed more positive effects on the CO2 permeation compared to CNFs. Under optimized conditions, CO2 perme...Continue Reading

References

Aug 19, 2015·ACS Applied Materials & Interfaces·Juho Antti SirviöHenrikki Liimatainen
Jan 23, 2016·Carbohydrate Polymers·Sharifah Bee Abd HamidGabriele Centi
Mar 2, 2016·Current Opinion in Biotechnology·Tiffany AbitbolOded Shoseyov
Oct 1, 2017·Carbohydrate Polymers·Muhammad Bilal Khan NiaziØyvind Weiby Gregersen
Feb 9, 2018·Biomacromolecules·Jonathan Ø TorstensenØyvind W Gregersen
Apr 13, 2015·ACS Biomaterials Science & Engineering·Arne Quellmalz, Albert Mihranyan

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Citations

Jan 29, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Nabendu B Pramanik, Steven L Regen
Aug 15, 2019·ACS Applied Materials & Interfaces·Saravanan JanakiramLiyuan Deng

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