The Use of Microwave Derived Activated Carbon for Removal of Heavy Metal in Aqueous Solution
Palm oil processing waste which is palm oil kernel shell (POKS) was converted to activated carbon (POKS AC) through 7 min microwave pyrolysis at temperature 270 °C followed by chemical activation using NaOH and HCl. The adsorption study on Ni(II), Cu(II) and Cr(IV) was conducted to evaluate the eff...
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| Format: | Article |
| Language: | English |
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Penerbit UTHM
2011
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| Online Access: | http://ir.unimas.my/id/eprint/10870/ http://ir.unimas.my/id/eprint/10870/7/The%20Use%20of%20Microwave%20Derived%20Activated%20Carbon%20%28abstract%29.pdf |
| _version_ | 1848836879087042560 |
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| author | Wahi, Rafeah Senghie, Herman |
| author_facet | Wahi, Rafeah Senghie, Herman |
| author_sort | Wahi, Rafeah |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | Palm oil processing waste which is palm oil kernel shell (POKS) was converted to activated carbon (POKS AC) through 7 min microwave pyrolysis at temperature 270 °C followed by chemical activation using NaOH and HCl.
The adsorption study on Ni(II), Cu(II) and Cr(IV) was conducted to evaluate the efficiency of the prepared activated carbon to remove heavy metal. The adsorption capacity was determined as a function of adsorbate initial concentration and adsorbent dosage. Based on Langmuir isotherm, Ni(II) showed highest adsorption capacity of 40.98 mg/g, followed by Cr(IV) and
Cu(II) with adsorption capacity of 40.60 mg/g and 13.69 mg/g, respectively. Cr(IV) and Cu(II) showed better fitting to Freundlich isotherm model with high correlation regression indicating the applicability of heterogeneous adsorption. Ni(II) show better fitting with Langmuir isotherm that indicate monolayer coverage. The use of POKS AC is not only effective for adsorption
of Cr(IV), Ni(II) and Cu(II) in aqueous solution but also helps to overcome the over abundance of POKS waste problem. |
| first_indexed | 2025-11-15T06:30:46Z |
| format | Article |
| id | unimas-10870 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:30:46Z |
| publishDate | 2011 |
| publisher | Penerbit UTHM |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-108702016-03-14T02:29:28Z http://ir.unimas.my/id/eprint/10870/ The Use of Microwave Derived Activated Carbon for Removal of Heavy Metal in Aqueous Solution Wahi, Rafeah Senghie, Herman QD Chemistry Palm oil processing waste which is palm oil kernel shell (POKS) was converted to activated carbon (POKS AC) through 7 min microwave pyrolysis at temperature 270 °C followed by chemical activation using NaOH and HCl. The adsorption study on Ni(II), Cu(II) and Cr(IV) was conducted to evaluate the efficiency of the prepared activated carbon to remove heavy metal. The adsorption capacity was determined as a function of adsorbate initial concentration and adsorbent dosage. Based on Langmuir isotherm, Ni(II) showed highest adsorption capacity of 40.98 mg/g, followed by Cr(IV) and Cu(II) with adsorption capacity of 40.60 mg/g and 13.69 mg/g, respectively. Cr(IV) and Cu(II) showed better fitting to Freundlich isotherm model with high correlation regression indicating the applicability of heterogeneous adsorption. Ni(II) show better fitting with Langmuir isotherm that indicate monolayer coverage. The use of POKS AC is not only effective for adsorption of Cr(IV), Ni(II) and Cu(II) in aqueous solution but also helps to overcome the over abundance of POKS waste problem. Penerbit UTHM 2011 Article PeerReviewed text en http://ir.unimas.my/id/eprint/10870/7/The%20Use%20of%20Microwave%20Derived%20Activated%20Carbon%20%28abstract%29.pdf Wahi, Rafeah and Senghie, Herman (2011) The Use of Microwave Derived Activated Carbon for Removal of Heavy Metal in Aqueous Solution. Journal of Science and Technology, 3 (1). pp. 97-108. ISSN 2229-8460 https://scholar.google.de/citations?view_op=view_citation&hl=de&user=XDQF0e4AAAAJ&citation_for_view=XDQF0e4AAAAJ:d1gkVwhDpl0C |
| spellingShingle | QD Chemistry Wahi, Rafeah Senghie, Herman The Use of Microwave Derived Activated Carbon for Removal of Heavy Metal in Aqueous Solution |
| title | The Use of Microwave Derived Activated Carbon for Removal of Heavy Metal in Aqueous Solution |
| title_full | The Use of Microwave Derived Activated Carbon for Removal of Heavy Metal in Aqueous Solution |
| title_fullStr | The Use of Microwave Derived Activated Carbon for Removal of Heavy Metal in Aqueous Solution |
| title_full_unstemmed | The Use of Microwave Derived Activated Carbon for Removal of Heavy Metal in Aqueous Solution |
| title_short | The Use of Microwave Derived Activated Carbon for Removal of Heavy Metal in Aqueous Solution |
| title_sort | use of microwave derived activated carbon for removal of heavy metal in aqueous solution |
| topic | QD Chemistry |
| url | http://ir.unimas.my/id/eprint/10870/ http://ir.unimas.my/id/eprint/10870/ http://ir.unimas.my/id/eprint/10870/7/The%20Use%20of%20Microwave%20Derived%20Activated%20Carbon%20%28abstract%29.pdf |