The effect of mechanical grinding on the mesoporosity of steam-activated palm kernel shell activated carbons
Background: Palm kernel shell activated carbon (OPSA) produced by steam gasification at high temperatures generally results in high surface areas of 1146 to 1600 m2 g−1, attributed to the high volume of micropores (0.43 to 0.56 cm3 g−1). The mesoporosity of naturally occurring activated carbons is o...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Society of Chemical Industry
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/15584/ http://psasir.upm.edu.my/id/eprint/15584/1/The%20effect%20of%20mechanical%20grinding%20on%20the%20mesoporosity%20of%20steam.pdf |
| _version_ | 1848842718190501888 |
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| author | Mak, S. M. Tey, Beng Ti Cheah, Kien Yoo Siew, Wai Lin Tan, Kheng Ka |
| author_facet | Mak, S. M. Tey, Beng Ti Cheah, Kien Yoo Siew, Wai Lin Tan, Kheng Ka |
| author_sort | Mak, S. M. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Background: Palm kernel shell activated carbon (OPSA) produced by steam gasification at high temperatures generally results in high surface areas of 1146 to 1600 m2 g−1, attributed to the high volume of micropores (0.43 to 0.56 cm3 g−1). The mesoporosity of naturally occurring activated carbons is observed to increase with decreasing particle size. Mechanical grinding was therefore performed to investigate its effect on the mesoporosity and microporosity of OPSA. Results: Mechanical grinding had a strong effect on mesopore volume and average pore diameter, with an increase in mesopore volume from 47 to 66% as particle size decreases. Interestingly, no significant effect on the micropore fraction was observed in ground OPSA particles. Conclusions: The mechanically ground OPSA particles possessed dual adsorption capabilities due to the high microporosity and moderate mesoporosity contained in the structures. This results in interesting porosity behaviour of palm kernel shell activated carbons and the potential to provide materials of distinct sorption capacities with minimal treatment. |
| first_indexed | 2025-11-15T08:03:35Z |
| format | Article |
| id | upm-15584 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:03:35Z |
| publishDate | 2009 |
| publisher | Society of Chemical Industry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-155842015-10-22T01:36:43Z http://psasir.upm.edu.my/id/eprint/15584/ The effect of mechanical grinding on the mesoporosity of steam-activated palm kernel shell activated carbons Mak, S. M. Tey, Beng Ti Cheah, Kien Yoo Siew, Wai Lin Tan, Kheng Ka Background: Palm kernel shell activated carbon (OPSA) produced by steam gasification at high temperatures generally results in high surface areas of 1146 to 1600 m2 g−1, attributed to the high volume of micropores (0.43 to 0.56 cm3 g−1). The mesoporosity of naturally occurring activated carbons is observed to increase with decreasing particle size. Mechanical grinding was therefore performed to investigate its effect on the mesoporosity and microporosity of OPSA. Results: Mechanical grinding had a strong effect on mesopore volume and average pore diameter, with an increase in mesopore volume from 47 to 66% as particle size decreases. Interestingly, no significant effect on the micropore fraction was observed in ground OPSA particles. Conclusions: The mechanically ground OPSA particles possessed dual adsorption capabilities due to the high microporosity and moderate mesoporosity contained in the structures. This results in interesting porosity behaviour of palm kernel shell activated carbons and the potential to provide materials of distinct sorption capacities with minimal treatment. Society of Chemical Industry 2009-09 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/15584/1/The%20effect%20of%20mechanical%20grinding%20on%20the%20mesoporosity%20of%20steam.pdf Mak, S. M. and Tey, Beng Ti and Cheah, Kien Yoo and Siew, Wai Lin and Tan, Kheng Ka (2009) The effect of mechanical grinding on the mesoporosity of steam-activated palm kernel shell activated carbons. Journal of Chemical Technology and Biotechnology, 84 (9). pp. 1405-1411. ISSN 0268-2575; ESSN: 1097-4660 10.1002/jctb.2235 |
| spellingShingle | Mak, S. M. Tey, Beng Ti Cheah, Kien Yoo Siew, Wai Lin Tan, Kheng Ka The effect of mechanical grinding on the mesoporosity of steam-activated palm kernel shell activated carbons |
| title | The effect of mechanical grinding on the mesoporosity of steam-activated palm kernel shell activated carbons |
| title_full | The effect of mechanical grinding on the mesoporosity of steam-activated palm kernel shell activated carbons |
| title_fullStr | The effect of mechanical grinding on the mesoporosity of steam-activated palm kernel shell activated carbons |
| title_full_unstemmed | The effect of mechanical grinding on the mesoporosity of steam-activated palm kernel shell activated carbons |
| title_short | The effect of mechanical grinding on the mesoporosity of steam-activated palm kernel shell activated carbons |
| title_sort | effect of mechanical grinding on the mesoporosity of steam-activated palm kernel shell activated carbons |
| url | http://psasir.upm.edu.my/id/eprint/15584/ http://psasir.upm.edu.my/id/eprint/15584/ http://psasir.upm.edu.my/id/eprint/15584/1/The%20effect%20of%20mechanical%20grinding%20on%20the%20mesoporosity%20of%20steam.pdf |