Fabricating Mechanically Robust Binder-Free Structured Zeolites by 3D Printing Coupled with Zeolite Soldering : A Superior Configuration for CO2 Capture
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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Detail(s)
Original language | English |
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Article number | 1901317 |
Journal / Publication | Advanced Science |
Volume | 6 |
Issue number | 17 |
Online published | 1 Jul 2019 |
Publication status | Published - 4 Sept 2019 |
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DOI | DOI |
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Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-85068425041&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(9cc614e5-66d0-4e4b-a66c-f9db315611bb).html |
Abstract
3D-printing technology is a promising approach for rapidly and precisely manufacturing zeolite adsorbents with desirable configurations. However, the trade-off among mechanical stability, adsorption capacity, and diffusion kinetics remains an elusive challenge for the practical application of 3D-printed zeolites. Herein, a facile “3D printing and zeolite soldering” strategy is developed to construct mechanically robust binder-free zeolite monoliths (ZM-BF) with hierarchical structures, which can act as a superior configuration for CO2 capture. Halloysite nanotubes are employed as printing ink additives, which serve as both reinforcing materials and precursor materials for integrating ZM-BF by ultrastrong interfacial “zeolite-bonds” subjected to hydrothermal treatment. ZM-BF exhibits outstanding mechanical properties with robust compressive strength up to 5.24 MPa, higher than most of the reported structured zeolites with binders. The equilibrium CO2 uptake of ZM-BF reaches up to 5.58 mmol g−1 (298 K, 1 bar), which is the highest among all reported 3D-printed CO2 adsorbents. Strikingly, the dynamic adsorption breakthrough tests demonstrate the superiority of ZM-BF over commercial benchmark zeolites for flue gas purification and natural gas and biogas upgrading. This work introduces a facile strategy for designing and fabricating high-performance hierarchically structured zeolite adsorbents and even catalysts for practical applications.
Research Area(s)
- 3D printing, CO2 capture, hydrothermal crystallization, monoliths, zeolites
Citation Format(s)
Fabricating Mechanically Robust Binder-Free Structured Zeolites by 3D Printing Coupled with Zeolite Soldering: A Superior Configuration for CO2 Capture. / Wang, Shuang; Bai, Pu; Sun, Mingzhe et al.
In: Advanced Science, Vol. 6, No. 17, 1901317, 04.09.2019.
In: Advanced Science, Vol. 6, No. 17, 1901317, 04.09.2019.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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