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10.3390/molecules27217657
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Article

Sonication-Free Dispersion of Single-Walled Carbon Nanotubes for High-Sorption-Capacity Aerogel Fabrication

by
Dong Li
1,
Liantao Xin
1,
Bocheng Yang
1,
Zizheng Chen
1,
Qianru Wu
1,
Fangqian Han
1,
Shulan Hao
1,
Lihu Feng
1,
Xiaoyu Wang
1,
Shiying Wang
1,*,
Lei Wang
1,2 and
Maoshuai He
1,*
1
College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
2
Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
*
Authors to whom correspondence should be addressed.
Molecules 2022, 27(21), 7657; https://doi.org/10.3390/molecules27217657
Submission received: 1 October 2022 / Revised: 23 October 2022 / Accepted: 4 November 2022 / Published: 7 November 2022
(This article belongs to the Special Issue Carbon Nanomaterials: Synthesis and Application)
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Abstract

Homogenously dispersing single-walled carbon nanotubes (SWNTs) in solvents has been one critical step towards exploiting their exceptional properties in high-performance components. However, the solubility of SWNTs is severely limited by the inert tube surfaces and strong tube-tube van der Waals attractions. Starting with carbon nanotubides, i.e., negatively charged SWNTs reduced by alkali metals, we herein propose a sonication-free approach to prepare an aqueous dispersion of SWNTs. The approach combines the spontaneous dissolution of nanotubides in polar aprotic solvents with polyvinylpyrrolidone wrapping and dialysis in deionized H2O, which results in well-dispersed, neutralized SWNTs. The gelation of concentrated SWNT dispersion leads to the formation of hydrogels, which is subsequently transformed into SWNT aerogels through lyophilization. The prepared SWNT aerogels exhibit high-mass-sorption capacities for organic solvent absorption, paving the way towards harvesting the extraordinary properties of SWNTs.
Keywords: sonication-free; polyvinylpyrrolidone wrapping; aqueous dispersion; carbon nanotubide; aerogel sonication-free; polyvinylpyrrolidone wrapping; aqueous dispersion; carbon nanotubide; aerogel

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MDPI and ACS Style

Li, D.; Xin, L.; Yang, B.; Chen, Z.; Wu, Q.; Han, F.; Hao, S.; Feng, L.; Wang, X.; Wang, S.; et al. Sonication-Free Dispersion of Single-Walled Carbon Nanotubes for High-Sorption-Capacity Aerogel Fabrication. Molecules 2022, 27, 7657. https://doi.org/10.3390/molecules27217657

AMA Style

Li D, Xin L, Yang B, Chen Z, Wu Q, Han F, Hao S, Feng L, Wang X, Wang S, et al. Sonication-Free Dispersion of Single-Walled Carbon Nanotubes for High-Sorption-Capacity Aerogel Fabrication. Molecules. 2022; 27(21):7657. https://doi.org/10.3390/molecules27217657

Chicago/Turabian Style

Li, Dong, Liantao Xin, Bocheng Yang, Zizheng Chen, Qianru Wu, Fangqian Han, Shulan Hao, Lihu Feng, Xiaoyu Wang, Shiying Wang, and et al. 2022. "Sonication-Free Dispersion of Single-Walled Carbon Nanotubes for High-Sorption-Capacity Aerogel Fabrication" Molecules 27, no. 21: 7657. https://doi.org/10.3390/molecules27217657

APA Style

Li, D., Xin, L., Yang, B., Chen, Z., Wu, Q., Han, F., Hao, S., Feng, L., Wang, X., Wang, S., Wang, L., & He, M. (2022). Sonication-Free Dispersion of Single-Walled Carbon Nanotubes for High-Sorption-Capacity Aerogel Fabrication. Molecules, 27(21), 7657. https://doi.org/10.3390/molecules27217657

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