Functionalizing Graphene Oxide with Alkylamine by Gamma-ray Irradiation Method
A gamma-ray irradiation technique was used to functionalize graphene oxide (GO) with alkylamines of various alkyl chain lengths. Functionalization of the alkyl chains onto the GO was confirmed by nuclear magnetic resonance (1H NMR), Fourier transform infrared (FTIR), and X-ray diffraction (XRD). FTI...
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MDPI AG
2017-06-01
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| Series: | Nanomaterials |
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| Online Access: | http://www.mdpi.com/2079-4991/7/6/135 |
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| author | Noraniza Ahmad Daud Buong Woei Chieng Nor Azowa Ibrahim Zainal Abidin Talib Ernee Noryana Muhamad Zurina Zainal Abidin |
| author_facet | Noraniza Ahmad Daud Buong Woei Chieng Nor Azowa Ibrahim Zainal Abidin Talib Ernee Noryana Muhamad Zurina Zainal Abidin |
| author_sort | Noraniza Ahmad Daud |
| collection | DOAJ |
| description | A gamma-ray irradiation technique was used to functionalize graphene oxide (GO) with alkylamines of various alkyl chain lengths. Functionalization of the alkyl chains onto the GO was confirmed by nuclear magnetic resonance (1H NMR), Fourier transform infrared (FTIR), and X-ray diffraction (XRD). FTIR of the functionalized GO showed the appearance of significant peaks around 2960–2850 cm−1 (–CH2) which came from long alkyl chains, together with a peak around 1560–1450 cm−1, indicating the formation of C–NH–C. XRD showed an additional diffraction peak at a lower 2θ angle, indicating that the intercalation of the alkylamine was successful. The effects on the morphological and thermal properties of GO functionalized with alkyl chains of various lengths were investigated. Scanning electron microscopy (SEM) analysis showed an increase in surface roughness when the alkyl chain length was increased. The addition of alkyl chains on GO surfaces significantly improved the thermal stability of the GO, suggesting that these surfaces have great potential for use as a hydrophobic material in industry. |
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| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-12-13T10:46:33Z |
| publishDate | 2017-06-01 |
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| series | Nanomaterials |
| spelling | doaj.art-1eaac2b742b7492e833146d1512826742022-12-21T23:50:08ZengMDPI AGNanomaterials2079-49912017-06-017613510.3390/nano7060135nano7060135Functionalizing Graphene Oxide with Alkylamine by Gamma-ray Irradiation MethodNoraniza Ahmad Daud0Buong Woei Chieng1Nor Azowa Ibrahim2Zainal Abidin Talib3Ernee Noryana Muhamad4Zurina Zainal Abidin5Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, MalaysiaDepartment of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, MalaysiaDepartment of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, MalaysiaDepartment of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, MalaysiaDepartment of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, MalaysiaDepartment of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, MalaysiaA gamma-ray irradiation technique was used to functionalize graphene oxide (GO) with alkylamines of various alkyl chain lengths. Functionalization of the alkyl chains onto the GO was confirmed by nuclear magnetic resonance (1H NMR), Fourier transform infrared (FTIR), and X-ray diffraction (XRD). FTIR of the functionalized GO showed the appearance of significant peaks around 2960–2850 cm−1 (–CH2) which came from long alkyl chains, together with a peak around 1560–1450 cm−1, indicating the formation of C–NH–C. XRD showed an additional diffraction peak at a lower 2θ angle, indicating that the intercalation of the alkylamine was successful. The effects on the morphological and thermal properties of GO functionalized with alkyl chains of various lengths were investigated. Scanning electron microscopy (SEM) analysis showed an increase in surface roughness when the alkyl chain length was increased. The addition of alkyl chains on GO surfaces significantly improved the thermal stability of the GO, suggesting that these surfaces have great potential for use as a hydrophobic material in industry.http://www.mdpi.com/2079-4991/7/6/135graphene oxidefunctionalizationalkylamine |
| spellingShingle | Noraniza Ahmad Daud Buong Woei Chieng Nor Azowa Ibrahim Zainal Abidin Talib Ernee Noryana Muhamad Zurina Zainal Abidin Functionalizing Graphene Oxide with Alkylamine by Gamma-ray Irradiation Method Nanomaterials graphene oxide functionalization alkylamine |
| title | Functionalizing Graphene Oxide with Alkylamine by Gamma-ray Irradiation Method |
| title_full | Functionalizing Graphene Oxide with Alkylamine by Gamma-ray Irradiation Method |
| title_fullStr | Functionalizing Graphene Oxide with Alkylamine by Gamma-ray Irradiation Method |
| title_full_unstemmed | Functionalizing Graphene Oxide with Alkylamine by Gamma-ray Irradiation Method |
| title_short | Functionalizing Graphene Oxide with Alkylamine by Gamma-ray Irradiation Method |
| title_sort | functionalizing graphene oxide with alkylamine by gamma ray irradiation method |
| topic | graphene oxide functionalization alkylamine |
| url | http://www.mdpi.com/2079-4991/7/6/135 |
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