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Chemically Grafted Aminated Carbon Nanotubes and l-Lysine in Ultramodified Conditions for Carbon Dioxide Storage.
- Source :
-
ACS omega [ACS Omega] 2018 Sep 04; Vol. 3 (9), pp. 10442-10448. Date of Electronic Publication: 2018 Sep 04 (Print Publication: 2018). - Publication Year :
- 2018
-
Abstract
- The study reported CO <subscript>2</subscript> storage properties of single-walled carbon nanotubes (CNTs) modified by introducing amino groups onto CNT surfaces via a chemical process. Two different approaches were used to produce amino-functionalized nanotubes by adding lithium amide and l-lysine amino acid. Lithium amide was introduced on CNT surfaces, and then, it was further modified by adding amino-moiety (l-lysine amino acid) to obtain multiamino sites on the CNT surface for CO <subscript>2</subscript> storage. The aminated CNT were followed by CO <subscript>2</subscript> adsorption experiments, and amino group interactions with CO <subscript>2</subscript> have helped CNT to achieve higher adsorption capacity. The successful modification of CNTs showed ameliorated CO <subscript>2</subscript> storage capacity as compared to pristine CNT. The modified CNT possessed free amine groups on the surface, which led to an enhanced CO <subscript>2</subscript> adsorption capacity. The modified CNT samples were analyzed by X-ray photoelectron spectroscopy, infrared spectroscopy, and X-ray diffraction techniques.<br />Competing Interests: The authors declare no competing financial interest.
Details
- Language :
- English
- ISSN :
- 2470-1343
- Volume :
- 3
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- ACS omega
- Publication Type :
- Academic Journal
- Accession number :
- 31459171
- Full Text :
- https://doi.org/10.1021/acsomega.8b00597