Effective and Simple NaOH-Modification Method to Remove Methyl Violet Dye via Ipomoea aquatica Roots
In this study, a simple chemical modification was applied to a sustainable and abundantly available resource, kangkong root (KR), to remove methyl violet 2B (MV) dye. The chemically modified adsorbent (NaOH-KR) was obtained using NaOH solution treatment. Batch adsorption experiments were carried out...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2021-01-01
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| Series: | Adsorption Science & Technology |
| Online Access: | http://dx.doi.org/10.1155/2021/5932222 |
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| author | Yie Chen Lu Muhammad Raziq Rahimi Kooh Linda Biaw Leng Lim Namal Priyantha |
| author_facet | Yie Chen Lu Muhammad Raziq Rahimi Kooh Linda Biaw Leng Lim Namal Priyantha |
| author_sort | Yie Chen Lu |
| collection | DOAJ |
| description | In this study, a simple chemical modification was applied to a sustainable and abundantly available resource, kangkong root (KR), to remove methyl violet 2B (MV) dye. The chemically modified adsorbent (NaOH-KR) was obtained using NaOH solution treatment. Batch adsorption experiments were carried out to investigate the effects of pH, ionic strength, contact time, adsorbent dosage, and initial dye concentration. A regeneration experiment was also carried out to assess the potential of reusability. The adsorption process was modelled using various kinetics and isotherm models, whereby the best-fitting models were evaluated by using the coefficient of determination (R2) and error functions. The Sips (R2=0.9714, χ2 =0.16) and pseudo-second-order (R2=0.9996, χ2=0.007) models were identified to best represent the adsorption process. The Sips model predicted a maximum adsorption capacity at 551.5 mg g-1 for NaOH-KR, which is 55% improvement in performance when compared to nonmodified KR. Lastly, the regeneration experiment showed that NaOH-KR was able to maintain reasonable dye removal even after five consecutive cycles of regenerating and reusing. |
| format | Article |
| id | doaj-art-4d61d6a63aef43bdb82df42e0df32c72 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-4d61d6a63aef43bdb82df42e0df32c722025-01-02T22:54:09ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382021-01-01202110.1155/2021/59322225932222Effective and Simple NaOH-Modification Method to Remove Methyl Violet Dye via Ipomoea aquatica RootsYie Chen Lu0Muhammad Raziq Rahimi Kooh1Linda Biaw Leng Lim2Namal Priyantha3Chemical Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei DarussalamCentre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei DarussalamChemical Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei DarussalamDepartment of Chemistry, Faculty of Science, University of Peradeniya, Sri LankaIn this study, a simple chemical modification was applied to a sustainable and abundantly available resource, kangkong root (KR), to remove methyl violet 2B (MV) dye. The chemically modified adsorbent (NaOH-KR) was obtained using NaOH solution treatment. Batch adsorption experiments were carried out to investigate the effects of pH, ionic strength, contact time, adsorbent dosage, and initial dye concentration. A regeneration experiment was also carried out to assess the potential of reusability. The adsorption process was modelled using various kinetics and isotherm models, whereby the best-fitting models were evaluated by using the coefficient of determination (R2) and error functions. The Sips (R2=0.9714, χ2 =0.16) and pseudo-second-order (R2=0.9996, χ2=0.007) models were identified to best represent the adsorption process. The Sips model predicted a maximum adsorption capacity at 551.5 mg g-1 for NaOH-KR, which is 55% improvement in performance when compared to nonmodified KR. Lastly, the regeneration experiment showed that NaOH-KR was able to maintain reasonable dye removal even after five consecutive cycles of regenerating and reusing.http://dx.doi.org/10.1155/2021/5932222 |
| spellingShingle | Yie Chen Lu Muhammad Raziq Rahimi Kooh Linda Biaw Leng Lim Namal Priyantha Effective and Simple NaOH-Modification Method to Remove Methyl Violet Dye via Ipomoea aquatica Roots Adsorption Science & Technology |
| title | Effective and Simple NaOH-Modification Method to Remove Methyl Violet Dye via Ipomoea aquatica Roots |
| title_full | Effective and Simple NaOH-Modification Method to Remove Methyl Violet Dye via Ipomoea aquatica Roots |
| title_fullStr | Effective and Simple NaOH-Modification Method to Remove Methyl Violet Dye via Ipomoea aquatica Roots |
| title_full_unstemmed | Effective and Simple NaOH-Modification Method to Remove Methyl Violet Dye via Ipomoea aquatica Roots |
| title_short | Effective and Simple NaOH-Modification Method to Remove Methyl Violet Dye via Ipomoea aquatica Roots |
| title_sort | effective and simple naoh modification method to remove methyl violet dye via ipomoea aquatica roots |
| url | http://dx.doi.org/10.1155/2021/5932222 |
| work_keys_str_mv | AT yiechenlu effectiveandsimplenaohmodificationmethodtoremovemethylvioletdyeviaipomoeaaquaticaroots AT muhammadraziqrahimikooh effectiveandsimplenaohmodificationmethodtoremovemethylvioletdyeviaipomoeaaquaticaroots AT lindabiawlenglim effectiveandsimplenaohmodificationmethodtoremovemethylvioletdyeviaipomoeaaquaticaroots AT namalpriyantha effectiveandsimplenaohmodificationmethodtoremovemethylvioletdyeviaipomoeaaquaticaroots |