Coffee residue-based activated carbons for phenol removal
This work was aimed to evaluate the adsorptive properties of activated carbons from coffee residue for phenol removal. The coffee residue was activated using H3PO4 and KOH, and the resultant activated carbons were characterized for surface area and functional groups. The values of surface area were...
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| Format: | Article |
| Language: | English |
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IWA Publishing
2021-07-01
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| Series: | Water Practice and Technology |
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| Online Access: | http://wpt.iwaponline.com/content/16/3/793 |
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| author | Hemavathy Palanisami Mohamad Rafiuddin Mohd Azmi Muhammad Abbas Ahmad Zaini Zainul Akmar Zakaria Muhd Nazrul Hisham Zainal Alam Mohd Azizi Che Yunus |
| author_facet | Hemavathy Palanisami Mohamad Rafiuddin Mohd Azmi Muhammad Abbas Ahmad Zaini Zainul Akmar Zakaria Muhd Nazrul Hisham Zainal Alam Mohd Azizi Che Yunus |
| author_sort | Hemavathy Palanisami |
| collection | DOAJ |
| description | This work was aimed to evaluate the adsorptive properties of activated carbons from coffee residue for phenol removal. The coffee residue was activated using H3PO4 and KOH, and the resultant activated carbons were characterized for surface area and functional groups. The values of surface area were recorded as 1,030 m2/g and 399 m2/g for H3PO4- and KOH-activated carbons, respectively. The maximum capacity for phenol removal is comparable for both activated carbons at 43 mg/g. The pores might be inaccessible due to electrostatic repulsion by surface functional groups and hydroxyl anions. The second stage in a two-stage adsorber design is necessary to accomplish the process with high performance and minimum dosage of activated carbon. Coffee residue is a promising activated carbon precursor for phenol removal. Highlights
Coffee residue was activated using phosphoric acid or potassium hydroxide.;
Activated coffee residue carbons exhibit phenol capacity of 43 mg/g.;
Two-stage adsorber offers insight into high performance and minimum adsorbent dosage.; |
| first_indexed | 2024-12-19T03:35:46Z |
| format | Article |
| id | doaj.art-cb61e7d0688548c09fb9b65cdcf79660 |
| institution | Directory Open Access Journal |
| issn | 1751-231X |
| language | English |
| last_indexed | 2024-12-19T03:35:46Z |
| publishDate | 2021-07-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Practice and Technology |
| spelling | doaj.art-cb61e7d0688548c09fb9b65cdcf796602022-12-21T20:37:24ZengIWA PublishingWater Practice and Technology1751-231X2021-07-0116379380510.2166/wpt.2021.034034Coffee residue-based activated carbons for phenol removalHemavathy Palanisami0Mohamad Rafiuddin Mohd Azmi1Muhammad Abbas Ahmad Zaini2Zainul Akmar Zakaria3Muhd Nazrul Hisham Zainal Alam4Mohd Azizi Che Yunus5 School of Chemical & Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor, Malaysia School of Chemical & Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor, Malaysia School of Chemical & Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor, Malaysia School of Chemical & Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor, Malaysia School of Chemical & Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor, Malaysia School of Chemical & Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor, Malaysia This work was aimed to evaluate the adsorptive properties of activated carbons from coffee residue for phenol removal. The coffee residue was activated using H3PO4 and KOH, and the resultant activated carbons were characterized for surface area and functional groups. The values of surface area were recorded as 1,030 m2/g and 399 m2/g for H3PO4- and KOH-activated carbons, respectively. The maximum capacity for phenol removal is comparable for both activated carbons at 43 mg/g. The pores might be inaccessible due to electrostatic repulsion by surface functional groups and hydroxyl anions. The second stage in a two-stage adsorber design is necessary to accomplish the process with high performance and minimum dosage of activated carbon. Coffee residue is a promising activated carbon precursor for phenol removal. Highlights Coffee residue was activated using phosphoric acid or potassium hydroxide.; Activated coffee residue carbons exhibit phenol capacity of 43 mg/g.; Two-stage adsorber offers insight into high performance and minimum adsorbent dosage.;http://wpt.iwaponline.com/content/16/3/793activated carbonadsorptioncoffee residuephenoltwo-stage adsorber |
| spellingShingle | Hemavathy Palanisami Mohamad Rafiuddin Mohd Azmi Muhammad Abbas Ahmad Zaini Zainul Akmar Zakaria Muhd Nazrul Hisham Zainal Alam Mohd Azizi Che Yunus Coffee residue-based activated carbons for phenol removal Water Practice and Technology activated carbon adsorption coffee residue phenol two-stage adsorber |
| title | Coffee residue-based activated carbons for phenol removal |
| title_full | Coffee residue-based activated carbons for phenol removal |
| title_fullStr | Coffee residue-based activated carbons for phenol removal |
| title_full_unstemmed | Coffee residue-based activated carbons for phenol removal |
| title_short | Coffee residue-based activated carbons for phenol removal |
| title_sort | coffee residue based activated carbons for phenol removal |
| topic | activated carbon adsorption coffee residue phenol two-stage adsorber |
| url | http://wpt.iwaponline.com/content/16/3/793 |
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