Activated Charcoal from Coffee Dregs Waste as an Alternative Biosorbent of Cu(II) and Ag(I)
This study examines the use of coffee dregs waste as biosorbents of Cu(II) and Ag(I). Coffee dregs waste still contains a high level of carbon and cellulose for biosorbents production. The production process was started with charcoal activation using H3PO4. The batch method was applied by variations...
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| Format: | Article |
| Language: | English |
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Department of Chemistry, Universitas Gadjah Mada
2023-08-01
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| Series: | Indonesian Journal of Chemistry |
| Subjects: | |
| Online Access: | https://jurnal.ugm.ac.id/ijc/article/view/83269 |
| _version_ | 1797742613641560064 |
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| author | Susy Yunita Prabawati Priyagung Dhemi Widiakongko Mohammad Ahsani Taqwim |
| author_facet | Susy Yunita Prabawati Priyagung Dhemi Widiakongko Mohammad Ahsani Taqwim |
| author_sort | Susy Yunita Prabawati |
| collection | DOAJ |
| description | This study examines the use of coffee dregs waste as biosorbents of Cu(II) and Ag(I). Coffee dregs waste still contains a high level of carbon and cellulose for biosorbents production. The production process was started with charcoal activation using H3PO4. The batch method was applied by variations of contact time, the mass of the biosorbent, and the initial concentration of metal ions. The results showed that Cu(II) and Ag(I) were optimally adsorbed at pH 6 and 4, respectively. The amount of adsorbed metal ions increased with adsorption contact time. The adsorption process of both metal ions reaches stability within 60 min and the optimum biosorbent mass is 1 g. Isothermal adsorption studies show that Cu(II) adsorption tends to follow Langmuir isotherm with an adsorption energy of 31.42 kJ/mol and Ag(I) adsorption follows Freundlich isotherms with an adsorption energy of 27.74 kJ/mol. Based on the results, the interaction between metal ions and adsorbents is a chemical adsorption process and coffee dregs charcoal has the potential to adsorb Cu(II) and Ag(I) metal ions. |
| first_indexed | 2024-03-12T14:44:04Z |
| format | Article |
| id | doaj.art-87be24dffc9e4c1395ea2fc7bd8bb92d |
| institution | Directory Open Access Journal |
| issn | 1411-9420 2460-1578 |
| language | English |
| last_indexed | 2024-03-12T14:44:04Z |
| publishDate | 2023-08-01 |
| publisher | Department of Chemistry, Universitas Gadjah Mada |
| record_format | Article |
| series | Indonesian Journal of Chemistry |
| spelling | doaj.art-87be24dffc9e4c1395ea2fc7bd8bb92d2023-08-16T03:28:31ZengDepartment of Chemistry, Universitas Gadjah MadaIndonesian Journal of Chemistry1411-94202460-15782023-08-012341120112810.22146/ijc.8326934209Activated Charcoal from Coffee Dregs Waste as an Alternative Biosorbent of Cu(II) and Ag(I)Susy Yunita Prabawati0Priyagung Dhemi Widiakongko1Mohammad Ahsani Taqwim2Chemistry Program Study, Faculty of Science and Technology, UIN Sunan Kalijaga, Jl. Laksda Adisucipto, Yogyakarta 55281, IndonesiaChemistry Program Study, Faculty of Science and Technology, UIN Sunan Kalijaga, Jl. Laksda Adisucipto, Yogyakarta 55281, IndonesiaChemistry Program Study, Faculty of Science and Technology, UIN Sunan Kalijaga, Jl. Laksda Adisucipto, Yogyakarta 55281, IndonesiaThis study examines the use of coffee dregs waste as biosorbents of Cu(II) and Ag(I). Coffee dregs waste still contains a high level of carbon and cellulose for biosorbents production. The production process was started with charcoal activation using H3PO4. The batch method was applied by variations of contact time, the mass of the biosorbent, and the initial concentration of metal ions. The results showed that Cu(II) and Ag(I) were optimally adsorbed at pH 6 and 4, respectively. The amount of adsorbed metal ions increased with adsorption contact time. The adsorption process of both metal ions reaches stability within 60 min and the optimum biosorbent mass is 1 g. Isothermal adsorption studies show that Cu(II) adsorption tends to follow Langmuir isotherm with an adsorption energy of 31.42 kJ/mol and Ag(I) adsorption follows Freundlich isotherms with an adsorption energy of 27.74 kJ/mol. Based on the results, the interaction between metal ions and adsorbents is a chemical adsorption process and coffee dregs charcoal has the potential to adsorb Cu(II) and Ag(I) metal ions.https://jurnal.ugm.ac.id/ijc/article/view/83269ag(i)biosorbentcoffee dregscu(ii)isothermal adsorption |
| spellingShingle | Susy Yunita Prabawati Priyagung Dhemi Widiakongko Mohammad Ahsani Taqwim Activated Charcoal from Coffee Dregs Waste as an Alternative Biosorbent of Cu(II) and Ag(I) Indonesian Journal of Chemistry ag(i) biosorbent coffee dregs cu(ii) isothermal adsorption |
| title | Activated Charcoal from Coffee Dregs Waste as an Alternative Biosorbent of Cu(II) and Ag(I) |
| title_full | Activated Charcoal from Coffee Dregs Waste as an Alternative Biosorbent of Cu(II) and Ag(I) |
| title_fullStr | Activated Charcoal from Coffee Dregs Waste as an Alternative Biosorbent of Cu(II) and Ag(I) |
| title_full_unstemmed | Activated Charcoal from Coffee Dregs Waste as an Alternative Biosorbent of Cu(II) and Ag(I) |
| title_short | Activated Charcoal from Coffee Dregs Waste as an Alternative Biosorbent of Cu(II) and Ag(I) |
| title_sort | activated charcoal from coffee dregs waste as an alternative biosorbent of cu ii and ag i |
| topic | ag(i) biosorbent coffee dregs cu(ii) isothermal adsorption |
| url | https://jurnal.ugm.ac.id/ijc/article/view/83269 |
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