Using Nonionic Surfactants for Production of Semiconductor-type Carbon Nanotubes by Gel-based Affinity Chromatography
Single-wall carbon nanotubes (SWCNTs) have remarkable properties based on their electronic properties, i.e., metallic or semiconducting types, but as-grown SWCNTs contain a mixture of both types. Presented here is an improved and detailed method for producing highly enriched semiconducting SWCNTs fr...
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| Format: | Article |
| Language: | English |
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Wiley
2014-07-01
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| Series: | Nanomaterials and Nanotechnology |
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| Online Access: | http://www.intechopen.com/journals/nanomaterials_and_nanotechnology/using-nonionic-surfactants-for-production-of-semiconductor-type-carbon-nanotubes-by-gel-based-affini |
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| _version_ | 1832559628366381056 |
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| author | Varun Shenoy Gangoli Juyan Azhang Taryn T. Willett Sean A. Gelwick Erik H. Haroz Junichiro Kono Robert H. Hauge Michael S. Wong |
| author_facet | Varun Shenoy Gangoli Juyan Azhang Taryn T. Willett Sean A. Gelwick Erik H. Haroz Junichiro Kono Robert H. Hauge Michael S. Wong |
| author_sort | Varun Shenoy Gangoli |
| collection | DOAJ |
| description | Single-wall carbon nanotubes (SWCNTs) have remarkable properties based on their electronic properties, i.e., metallic or semiconducting types, but as-grown SWCNTs contain a mixture of both types. Presented here is an improved and detailed method for producing highly enriched semiconducting SWCNTs from a colloidal suspension of as-grown SWCNTs through agarose gel column-based affinity chromatography. After a 2 wt% sodium dodecyl sulphate (SDS) aqueous dispersion of SWCNTs is passed through the gel column, metal-type SWCNTs preferentially elute out using a 1.5 wt% SDS solution. Semiconductor-type SWCNTs are subsequently recovered from the column using a 2 wt% Pluronic F77 surfactant solution eluent. The semiconductor-enriched fraction purity is in the 90-95% range, based on detailed UV- vis-NIR absorption and resonant Raman spectroscopy
characterization of the particulate suspension. Semiconductor- type SWCNTs are recovered in solid form by evaporating the suspension fluid, and heating the dried sample in air to a temperature just above the Pluronic decomposition temperature. Using Pluronic and other nonionic-type surfactants can aid the scalability of the chromatographic production of semiconducting SWCNT samples. |
| format | Article |
| id | doaj-art-6d3b7a9d146f4257a13e032a617295a8 |
| institution | Kabale University |
| issn | 1847-9804 |
| language | English |
| publishDate | 2014-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Nanomaterials and Nanotechnology |
| spelling | doaj-art-6d3b7a9d146f4257a13e032a617295a82025-02-03T01:29:36ZengWileyNanomaterials and Nanotechnology1847-98042014-07-01419http://dx.doi.org/10.5772/5882847163Using Nonionic Surfactants for Production of Semiconductor-type Carbon Nanotubes by Gel-based Affinity ChromatographyVarun Shenoy GangoliJuyan AzhangTaryn T. WillettSean A. GelwickErik H. HarozJunichiro KonoRobert H. HaugeMichael S. WongSingle-wall carbon nanotubes (SWCNTs) have remarkable properties based on their electronic properties, i.e., metallic or semiconducting types, but as-grown SWCNTs contain a mixture of both types. Presented here is an improved and detailed method for producing highly enriched semiconducting SWCNTs from a colloidal suspension of as-grown SWCNTs through agarose gel column-based affinity chromatography. After a 2 wt% sodium dodecyl sulphate (SDS) aqueous dispersion of SWCNTs is passed through the gel column, metal-type SWCNTs preferentially elute out using a 1.5 wt% SDS solution. Semiconductor-type SWCNTs are subsequently recovered from the column using a 2 wt% Pluronic F77 surfactant solution eluent. The semiconductor-enriched fraction purity is in the 90-95% range, based on detailed UV- vis-NIR absorption and resonant Raman spectroscopy characterization of the particulate suspension. Semiconductor- type SWCNTs are recovered in solid form by evaporating the suspension fluid, and heating the dried sample in air to a temperature just above the Pluronic decomposition temperature. Using Pluronic and other nonionic-type surfactants can aid the scalability of the chromatographic production of semiconducting SWCNT samples.http://www.intechopen.com/journals/nanomaterials_and_nanotechnology/using-nonionic-surfactants-for-production-of-semiconductor-type-carbon-nanotubes-by-gel-based-affiniCarbon NanotubeSemiconductorSWCNTSeparationAffinity Chromatography |
| spellingShingle | Varun Shenoy Gangoli Juyan Azhang Taryn T. Willett Sean A. Gelwick Erik H. Haroz Junichiro Kono Robert H. Hauge Michael S. Wong Using Nonionic Surfactants for Production of Semiconductor-type Carbon Nanotubes by Gel-based Affinity Chromatography Nanomaterials and Nanotechnology Carbon Nanotube Semiconductor SWCNT Separation Affinity Chromatography |
| title | Using Nonionic Surfactants for Production of Semiconductor-type Carbon Nanotubes by Gel-based Affinity Chromatography |
| title_full | Using Nonionic Surfactants for Production of Semiconductor-type Carbon Nanotubes by Gel-based Affinity Chromatography |
| title_fullStr | Using Nonionic Surfactants for Production of Semiconductor-type Carbon Nanotubes by Gel-based Affinity Chromatography |
| title_full_unstemmed | Using Nonionic Surfactants for Production of Semiconductor-type Carbon Nanotubes by Gel-based Affinity Chromatography |
| title_short | Using Nonionic Surfactants for Production of Semiconductor-type Carbon Nanotubes by Gel-based Affinity Chromatography |
| title_sort | using nonionic surfactants for production of semiconductor type carbon nanotubes by gel based affinity chromatography |
| topic | Carbon Nanotube Semiconductor SWCNT Separation Affinity Chromatography |
| url | http://www.intechopen.com/journals/nanomaterials_and_nanotechnology/using-nonionic-surfactants-for-production-of-semiconductor-type-carbon-nanotubes-by-gel-based-affini |
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