Preparation of hierarchical porous carbon derived from averrhoa bilimbi and its diffusion properties
In this study, a hierarchically porous carbon was prepared from a natural material, Averrhoa bilimbi, also known as bilimbi. The bilimbis were cut into preferred shape and size before drying by freeze drying method. The bilimbis were then subjected to pyrolysis at temperature of 400°C and transforme...
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| Format: | Article |
| Language: | English |
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Penerbit UTM Press
2014
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| Online Access: | http://eprints.utm.my/62319/1/HoChinSiong2014_PreparationofHierarchicalPorousCarbonDerivedfromAverrhoaBilimbi.pdf |
| _version_ | 1796861243254898688 |
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| author | Mohameda, Nurul Najidah Yuan, Laisin Lee, Siew Ling Ho, Chin Siong Chandren, Sheela Hadi, Nur |
| author_facet | Mohameda, Nurul Najidah Yuan, Laisin Lee, Siew Ling Ho, Chin Siong Chandren, Sheela Hadi, Nur |
| author_sort | Mohameda, Nurul Najidah |
| collection | ePrints |
| description | In this study, a hierarchically porous carbon was prepared from a natural material, Averrhoa bilimbi, also known as bilimbi. The bilimbis were cut into preferred shape and size before drying by freeze drying method. The bilimbis were then subjected to pyrolysis at temperature of 400°C and transformed to porous carbon. Scanning electron microscopy (SEM) revealed that the bilimbis have a hierarchically porous structure in the macro-range. The diameter of the porosity decreased inwards from 30 to 8μm. Different types of motor oil, which were used to represent bulky molecules, were employed to test the diffusivity of these molecules from the bilimbi. It was found that the oils were able to diffuse through the hierarchically porous bilimbi in 2 to 3 hours, depending on the viscosity of the oils. Therefore, it can be concluded that, Averrhoa bilimbi possesses hierarchical porous structure with interconnected pores and capability to diffuse bulky molecules. |
| first_indexed | 2024-03-05T19:53:24Z |
| format | Article |
| id | utm.eprints-62319 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T19:53:24Z |
| publishDate | 2014 |
| publisher | Penerbit UTM Press |
| record_format | dspace |
| spelling | utm.eprints-623192017-06-05T03:19:44Z http://eprints.utm.my/62319/ Preparation of hierarchical porous carbon derived from averrhoa bilimbi and its diffusion properties Mohameda, Nurul Najidah Yuan, Laisin Lee, Siew Ling Ho, Chin Siong Chandren, Sheela Hadi, Nur TH Building construction In this study, a hierarchically porous carbon was prepared from a natural material, Averrhoa bilimbi, also known as bilimbi. The bilimbis were cut into preferred shape and size before drying by freeze drying method. The bilimbis were then subjected to pyrolysis at temperature of 400°C and transformed to porous carbon. Scanning electron microscopy (SEM) revealed that the bilimbis have a hierarchically porous structure in the macro-range. The diameter of the porosity decreased inwards from 30 to 8μm. Different types of motor oil, which were used to represent bulky molecules, were employed to test the diffusivity of these molecules from the bilimbi. It was found that the oils were able to diffuse through the hierarchically porous bilimbi in 2 to 3 hours, depending on the viscosity of the oils. Therefore, it can be concluded that, Averrhoa bilimbi possesses hierarchical porous structure with interconnected pores and capability to diffuse bulky molecules. Penerbit UTM Press 2014 Article PeerReviewed application/pdf en http://eprints.utm.my/62319/1/HoChinSiong2014_PreparationofHierarchicalPorousCarbonDerivedfromAverrhoaBilimbi.pdf Mohameda, Nurul Najidah and Yuan, Laisin and Lee, Siew Ling and Ho, Chin Siong and Chandren, Sheela and Hadi, Nur (2014) Preparation of hierarchical porous carbon derived from averrhoa bilimbi and its diffusion properties. Jurnal Teknologi (Sciences and Engineering), 69 (5). pp. 61-64. ISSN 0127-9696 http://dx.doi.org/10.11113/jt.v69.3206 DOI:10.11113/jt.v69.3206 |
| spellingShingle | TH Building construction Mohameda, Nurul Najidah Yuan, Laisin Lee, Siew Ling Ho, Chin Siong Chandren, Sheela Hadi, Nur Preparation of hierarchical porous carbon derived from averrhoa bilimbi and its diffusion properties |
| title | Preparation of hierarchical porous carbon derived from averrhoa bilimbi and its diffusion properties |
| title_full | Preparation of hierarchical porous carbon derived from averrhoa bilimbi and its diffusion properties |
| title_fullStr | Preparation of hierarchical porous carbon derived from averrhoa bilimbi and its diffusion properties |
| title_full_unstemmed | Preparation of hierarchical porous carbon derived from averrhoa bilimbi and its diffusion properties |
| title_short | Preparation of hierarchical porous carbon derived from averrhoa bilimbi and its diffusion properties |
| title_sort | preparation of hierarchical porous carbon derived from averrhoa bilimbi and its diffusion properties |
| topic | TH Building construction |
| url | http://eprints.utm.my/62319/1/HoChinSiong2014_PreparationofHierarchicalPorousCarbonDerivedfromAverrhoaBilimbi.pdf |
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