Removal of Crystal Violet Dye from Aqueous Solution Using Immobilized Spent Coffee Powder
In this work, the possibility of using immobilized spent coffee powder (ISCP) as an adsorbent for crystal violet (CV) adsorption from an aqueous solution was analyzed. The effect of process parameters such as pH, contact time, number of ISCP films, and initial CV concentrations on the removal of CV...
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Department of Chemistry, Universitas Gadjah Mada
2025-03-01
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| Series: | Indonesian Journal of Chemistry |
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| Online Access: | https://jurnal.ugm.ac.id/ijc/article/view/101370 |
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| author | Jia-Jun Teoh Siew-Teng Ong Sie-Tiong Ha |
| author_facet | Jia-Jun Teoh Siew-Teng Ong Sie-Tiong Ha |
| author_sort | Jia-Jun Teoh |
| collection | DOAJ |
| description | In this work, the possibility of using immobilized spent coffee powder (ISCP) as an adsorbent for crystal violet (CV) adsorption from an aqueous solution was analyzed. The effect of process parameters such as pH, contact time, number of ISCP films, and initial CV concentrations on the removal of CV was studied. The optimum pH for the adsorption of CV was found to be at pH 7. The adsorption was rapid at the initial stage, and equilibrium was achieved in 100 min. The adsorption of CV increased with the increasing number of ISCP films. Characterization of ISCP was carried out by using FESEM and ATR-FTIR. Langmuir isotherm model can be used to explain the equilibrium data, and a maximum sorption capacity of 97.09 mg/g with a high coefficient of determination (R2) of 0.9986, was obtained. The experimental data were found to be fitted well into the pseudo-second-order kinetic model. From the Plackett-Burman results, both contact time and pH were identified as significant factors. Under the optimum experimental conditions based on RSM, the percentage uptake predicted by the model was in close agreement with the experimental values. |
| format | Article |
| id | doaj-art-ef24a2aaf36c4ad4b1ff1cba54faca2c |
| institution | DOAJ |
| issn | 1411-9420 2460-1578 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Department of Chemistry, Universitas Gadjah Mada |
| record_format | Article |
| series | Indonesian Journal of Chemistry |
| spelling | doaj-art-ef24a2aaf36c4ad4b1ff1cba54faca2c2025-08-20T03:08:35ZengDepartment of Chemistry, Universitas Gadjah MadaIndonesian Journal of Chemistry1411-94202460-15782025-03-0125254856010.22146/ijc.10137037169Removal of Crystal Violet Dye from Aqueous Solution Using Immobilized Spent Coffee PowderJia-Jun Teoh0Siew-Teng Ong1Sie-Tiong Ha2Faculty of Science, Universiti Tunku Abdul Rahman, Jl. Universiti, Bandar Barat, 31900 Kampar, Perak, MalaysiaFaculty of Science, Universiti Tunku Abdul Rahman, Jl. Universiti, Bandar Barat, 31900 Kampar, Perak, Malaysia; Center for Agriculture and Food Research, Universiti Tunku Abdul Rahman, Jl. Universiti, Bandar Barat, 31900 Kampar, Perak, MalaysiaFaculty of Science, Universiti Tunku Abdul Rahman, Jl. Universiti, Bandar Barat, 31900 Kampar, Perak, Malaysia; Center for Agriculture and Food Research, Universiti Tunku Abdul Rahman, Jl. Universiti, Bandar Barat, 31900 Kampar, Perak, MalaysiaIn this work, the possibility of using immobilized spent coffee powder (ISCP) as an adsorbent for crystal violet (CV) adsorption from an aqueous solution was analyzed. The effect of process parameters such as pH, contact time, number of ISCP films, and initial CV concentrations on the removal of CV was studied. The optimum pH for the adsorption of CV was found to be at pH 7. The adsorption was rapid at the initial stage, and equilibrium was achieved in 100 min. The adsorption of CV increased with the increasing number of ISCP films. Characterization of ISCP was carried out by using FESEM and ATR-FTIR. Langmuir isotherm model can be used to explain the equilibrium data, and a maximum sorption capacity of 97.09 mg/g with a high coefficient of determination (R2) of 0.9986, was obtained. The experimental data were found to be fitted well into the pseudo-second-order kinetic model. From the Plackett-Burman results, both contact time and pH were identified as significant factors. Under the optimum experimental conditions based on RSM, the percentage uptake predicted by the model was in close agreement with the experimental values.https://jurnal.ugm.ac.id/ijc/article/view/101370crystal violetcoffee powderadsorptionkineticsisotherm |
| spellingShingle | Jia-Jun Teoh Siew-Teng Ong Sie-Tiong Ha Removal of Crystal Violet Dye from Aqueous Solution Using Immobilized Spent Coffee Powder Indonesian Journal of Chemistry crystal violet coffee powder adsorption kinetics isotherm |
| title | Removal of Crystal Violet Dye from Aqueous Solution Using Immobilized Spent Coffee Powder |
| title_full | Removal of Crystal Violet Dye from Aqueous Solution Using Immobilized Spent Coffee Powder |
| title_fullStr | Removal of Crystal Violet Dye from Aqueous Solution Using Immobilized Spent Coffee Powder |
| title_full_unstemmed | Removal of Crystal Violet Dye from Aqueous Solution Using Immobilized Spent Coffee Powder |
| title_short | Removal of Crystal Violet Dye from Aqueous Solution Using Immobilized Spent Coffee Powder |
| title_sort | removal of crystal violet dye from aqueous solution using immobilized spent coffee powder |
| topic | crystal violet coffee powder adsorption kinetics isotherm |
| url | https://jurnal.ugm.ac.id/ijc/article/view/101370 |
| work_keys_str_mv | AT jiajunteoh removalofcrystalvioletdyefromaqueoussolutionusingimmobilizedspentcoffeepowder AT siewtengong removalofcrystalvioletdyefromaqueoussolutionusingimmobilizedspentcoffeepowder AT sietiongha removalofcrystalvioletdyefromaqueoussolutionusingimmobilizedspentcoffeepowder |