Microporous carbon nanoflakes derived from biomass cork waste for CO2 capture.
Saved in:
| Title: | Microporous carbon nanoflakes derived from biomass cork waste for CO2 capture. |
|---|---|
| Authors: | Zhang, Xuefeng1 (AUTHOR) xz210@msstate.edu, Elsayed, Islam1 (AUTHOR), Song, Xiaozhou2 (AUTHOR), Shmulsky, Rubin1 (AUTHOR), Hassan, El Barbary1 (AUTHOR) e.hassan@msstate.edu |
| Source: | Science of the Total Environment. Dec2020, Vol. 748, pN.PAG-N.PAG. 1p. |
| Abstract: | Porous structure design is considered to be a promising strategy for the development of effective sorbents for CO 2 capture. Herein, a series of carbon nanoflakes with large surface area (up to 2380 m2/g) and high micropore volume (up to 0.896 m3/g) were synthesized from a renewable precursor, cork dust waste, to capture CO 2 at atmospheric pressure. The nanoflakes exhibited superior CO 2 uptake performance at 1 bar with the maximum capacity of 7.82 and 4.27 mmol/g at 0 and 25 °C, respectively, in sharp contrast to previously reported porous carbon materials. The existence of large numbers of narrow micropores with the pore width less than 0.86 nm and 0.70 nm play a critical role in the CO 2 uptake at 0 and 25 °C, respectively. Moreover, the CNFs exhibited good recyclability and high selectivity for CO 2 uptake from the mixture of CO 2 and N 2. By taking advantage of the unique hollow honeycomb cell, the three-layered cell wall structure, as well as the unique chemical composition of a cork precursor, such delicate microporous carbon nanoflakes were able to be achieved by simple thermal pretreatment combined with chemical activation. This bioinspired precursor-synthesis route poses a great potential for the facile production of porous carbons for a variety of diverse applications including CO 2 capture. Unlabelled Image • Biomass cork waste was converted microporous carbon nanoflakes (CNFs) for CO 2 capture. • CO 2 adsorption capacity of CNFs is 7.82 mmol/g at 0 °C and 1 bar. • Thermal pretreatment of cork enhances the surface area, microporosity, and CO 2 adsorption capacity of CNFs. • Narrow micropores play a critical role in the CO 2 uptake under atmospheric pressure. [ABSTRACT FROM AUTHOR] |
| Copyright of Science of the Total Environment is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 146562456 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Microporous carbon nanoflakes derived from biomass cork waste for CO2 capture. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Xuefeng%22">Zhang, Xuefeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> xz210@msstate.edu</i><br /><searchLink fieldCode="AR" term="%22Elsayed%2C+Islam%22">Elsayed, Islam</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Xiaozhou%22">Song, Xiaozhou</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shmulsky%2C+Rubin%22">Shmulsky, Rubin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hassan%2C+El+Barbary%22">Hassan, El Barbary</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> e.hassan@msstate.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Science+of+the+Total+Environment%22">Science of the Total Environment</searchLink>. Dec2020, Vol. 748, pN.PAG-N.PAG. 1p. – Name: Abstract Label: Abstract Group: Ab Data: Porous structure design is considered to be a promising strategy for the development of effective sorbents for CO 2 capture. Herein, a series of carbon nanoflakes with large surface area (up to 2380 m2/g) and high micropore volume (up to 0.896 m3/g) were synthesized from a renewable precursor, cork dust waste, to capture CO 2 at atmospheric pressure. The nanoflakes exhibited superior CO 2 uptake performance at 1 bar with the maximum capacity of 7.82 and 4.27 mmol/g at 0 and 25 °C, respectively, in sharp contrast to previously reported porous carbon materials. The existence of large numbers of narrow micropores with the pore width less than 0.86 nm and 0.70 nm play a critical role in the CO 2 uptake at 0 and 25 °C, respectively. Moreover, the CNFs exhibited good recyclability and high selectivity for CO 2 uptake from the mixture of CO 2 and N 2. By taking advantage of the unique hollow honeycomb cell, the three-layered cell wall structure, as well as the unique chemical composition of a cork precursor, such delicate microporous carbon nanoflakes were able to be achieved by simple thermal pretreatment combined with chemical activation. This bioinspired precursor-synthesis route poses a great potential for the facile production of porous carbons for a variety of diverse applications including CO 2 capture. Unlabelled Image • Biomass cork waste was converted microporous carbon nanoflakes (CNFs) for CO 2 capture. • CO 2 adsorption capacity of CNFs is 7.82 mmol/g at 0 °C and 1 bar. • Thermal pretreatment of cork enhances the surface area, microporosity, and CO 2 adsorption capacity of CNFs. • Narrow micropores play a critical role in the CO 2 uptake under atmospheric pressure. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Science of the Total Environment is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=146562456 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.scitotenv.2020.142465 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Titles: – TitleFull: Microporous carbon nanoflakes derived from biomass cork waste for CO2 capture. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhang, Xuefeng – PersonEntity: Name: NameFull: Elsayed, Islam – PersonEntity: Name: NameFull: Song, Xiaozhou – PersonEntity: Name: NameFull: Shmulsky, Rubin – PersonEntity: Name: NameFull: Hassan, El Barbary IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 12 Text: Dec2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 00489697 Numbering: – Type: volume Value: 748 Titles: – TitleFull: Science of the Total Environment Type: main |
| ResultId | 1 |
