Ammonia-treated porous carbon derived from ZIF-8 for enhanced CO2 adsorption
A porous carbon (ZC) was prepared at 900 °C using zeolitic imidazolate framework-8 (ZIF-8) as a solid template for CO2 adsorption. The ZC was further treated by ammonia functionalization to improve CO2 uptake. The textural and surface characteristics of ZC samples were determined by X-ray diffractio...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier BV North-Holland
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/11745 |
| _version_ | 1848747888087138304 |
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| author | Ma, X. Li, L. Wang, Shaobin Lu, M. Li, H. Ma, W. Keener, T. |
| author_facet | Ma, X. Li, L. Wang, Shaobin Lu, M. Li, H. Ma, W. Keener, T. |
| author_sort | Ma, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A porous carbon (ZC) was prepared at 900 °C using zeolitic imidazolate framework-8 (ZIF-8) as a solid template for CO2 adsorption. The ZC was further treated by ammonia functionalization to improve CO2 uptake. The textural and surface characteristics of ZC samples were determined by X-ray diffraction (XRD), N2 adsorption, Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). It was revealed that ammonia treatment at 600 °C considerably enhanced the specific surface area and N-content of ZC. However, the pyrrolic-N group was decreased, yet the pyridinic-N group was increased with an increased temperature. The pyrrolic-N significantly enhanced CO2 adsorption. The ammonia treatment, on the one hand, increases the alkalinity of ZC sample and the base–acid interaction between N-containing functional groups with CO2. On the other hand, the ammonia treatment increased pyrrolic-N group (NH) into carbon surface facilitating the hydrogen-bonding interactions between proton of pyrrolic-N and CO2 molecules. |
| first_indexed | 2025-11-14T06:56:18Z |
| format | Journal Article |
| id | curtin-20.500.11937-11745 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:56:18Z |
| publishDate | 2016 |
| publisher | Elsevier BV North-Holland |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-117452017-09-13T14:59:19Z Ammonia-treated porous carbon derived from ZIF-8 for enhanced CO2 adsorption Ma, X. Li, L. Wang, Shaobin Lu, M. Li, H. Ma, W. Keener, T. A porous carbon (ZC) was prepared at 900 °C using zeolitic imidazolate framework-8 (ZIF-8) as a solid template for CO2 adsorption. The ZC was further treated by ammonia functionalization to improve CO2 uptake. The textural and surface characteristics of ZC samples were determined by X-ray diffraction (XRD), N2 adsorption, Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). It was revealed that ammonia treatment at 600 °C considerably enhanced the specific surface area and N-content of ZC. However, the pyrrolic-N group was decreased, yet the pyridinic-N group was increased with an increased temperature. The pyrrolic-N significantly enhanced CO2 adsorption. The ammonia treatment, on the one hand, increases the alkalinity of ZC sample and the base–acid interaction between N-containing functional groups with CO2. On the other hand, the ammonia treatment increased pyrrolic-N group (NH) into carbon surface facilitating the hydrogen-bonding interactions between proton of pyrrolic-N and CO2 molecules. 2016 Journal Article http://hdl.handle.net/20.500.11937/11745 10.1016/j.apsusc.2016.01.274 Elsevier BV North-Holland restricted |
| spellingShingle | Ma, X. Li, L. Wang, Shaobin Lu, M. Li, H. Ma, W. Keener, T. Ammonia-treated porous carbon derived from ZIF-8 for enhanced CO2 adsorption |
| title | Ammonia-treated porous carbon derived from ZIF-8 for enhanced CO2 adsorption |
| title_full | Ammonia-treated porous carbon derived from ZIF-8 for enhanced CO2 adsorption |
| title_fullStr | Ammonia-treated porous carbon derived from ZIF-8 for enhanced CO2 adsorption |
| title_full_unstemmed | Ammonia-treated porous carbon derived from ZIF-8 for enhanced CO2 adsorption |
| title_short | Ammonia-treated porous carbon derived from ZIF-8 for enhanced CO2 adsorption |
| title_sort | ammonia-treated porous carbon derived from zif-8 for enhanced co2 adsorption |
| url | http://hdl.handle.net/20.500.11937/11745 |