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Rownaghi AA, Kant A, Li X, Thakkar H, Hajari A, He Y, Brennan PJ, Hosseini H, Koros WJ, Rezaei F. Aminosilane-Grafted Zirconia-Titiania-Silica Nanoparticles/Torlon Hollow Fiber Composites for CO2 Capture. CHEMSUSCHEM 2016; 9:1166-1177. [PMID: 27076214 DOI: 10.1002/cssc.201600082] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 02/20/2016] [Indexed: 06/05/2023]
Abstract
In this work, the development of novel binary and ternary oxide/Torlon hollow fiber composites comprising zirconia, titania, and silica as amine supports was demonstrated. The resulting binary (Zr-Si/PAI-HF, Ti-Si/PAI-HF) and ternary (Zr-Ti-Si/PAI-HF) composites were then functionalized with monoamine-, diamine-, and triamine-substituted trialkoxysilanes and were evaluated in CO2 capture. Although the introduction of both Zr and Ti improved the CO2 adsorption capacity relative to that with Si/PAI-HF sorbents, zirconia was found to have a more favorable effect on the CO2 adsorption performance than titania, as previously demonstrated for amine sorbents in the powder form. The Zr-Ti-Si/PAI-HF sample with an oxide content of 20 wt % was found to exhibit a relatively high CO2 capacity, that is, 1.90 mmol g(-1) at atmospheric pressure under dry conditions, owing to more favorable synergy between the metal oxides and CO2 . The ternary fiber sorbent showed improved sorption kinetics and long-term stability in cyclic adsorption/desorption runs.
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Affiliation(s)
- Ali A Rownaghi
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, 110 N State St., Rolla, MO, 65409, USA
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Dr. NW, Atlanta, GA, 30332, USA
| | - Amit Kant
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, 110 N State St., Rolla, MO, 65409, USA
| | - Xin Li
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, 110 N State St., Rolla, MO, 65409, USA
| | - Harshul Thakkar
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, 110 N State St., Rolla, MO, 65409, USA
| | - Amit Hajari
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, 110 N State St., Rolla, MO, 65409, USA
| | - Yingxin He
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, 110 N State St., Rolla, MO, 65409, USA
| | - Patrick J Brennan
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, 110 N State St., Rolla, MO, 65409, USA
| | - Hooman Hosseini
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, 110 N State St., Rolla, MO, 65409, USA
| | - William J Koros
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Dr. NW, Atlanta, GA, 30332, USA
| | - Fateme Rezaei
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, 110 N State St., Rolla, MO, 65409, USA.
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