Removal of Organic Dye Using Graphene-based Composite: Isotherm and Kinetic Studies
In the present study, Graphene oxide (GO) and Graphene oxide-montmorillonite (GO-based Montmorillonite composites) composite was fabricated successfully and used further for the extraction of cationic pollutant, Malachite green (MG) oxalate. The structural characterization of synthesized composites...
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Iranian Environmental Mutagen Society
2024-11-01
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| Series: | Journal of Water and Environmental Nanotechnology |
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| Online Access: | https://www.jwent.net/article_718453_02920c283c5d504dafff2c5808326c85.pdf |
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| author | Preeti . Meena Bhandari Neeraj Kumari |
| author_facet | Preeti . Meena Bhandari Neeraj Kumari |
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| description | In the present study, Graphene oxide (GO) and Graphene oxide-montmorillonite (GO-based Montmorillonite composites) composite was fabricated successfully and used further for the extraction of cationic pollutant, Malachite green (MG) oxalate. The structural characterization of synthesized composites was investigated through XRD, FT-IR, and FE-SEM techniques. Furthermore, GO and GO-based Montmorillonite composites are used as effective adsorbents in removing organic MG oxalate dye through batch extraction by varying pH, contact time, and concentration. XRD studies confirmed the successful formation of GO and exfoliated structure of GO-based Montmorillonite composites. The disappearance of peak at 2θ = 8.1° for GO-based Montmorillonite composites confirmed the homogenous distribution of GO sheets into layered Mt clay. The maximum uptake of Malachite green dye with GO-based Montmorillonite composites composite was 675 mg/g while in the case of GO, it was 315 mg/g. The more adsorption of dye in the case of GO-based Montmorillonite composites was due to the availability of additional functional groups resulting in more active site generation. The linear fitting of Langmuir isotherm and pseudo-second kinetic models further confirmed favorable chemical interaction of dye in the form of monolayer to both GO and GO-based Montmorillonite composites. Dye-adsorbed GO and GO-based Montmorillonite composites could be regenerated and used further for the adsorption of dye with more than 80% adsorption efficiency. Therefore, the study showed that GO-based Montmorillonite composites based Montmorillonite composites proved to be a promising and reasonably priced sorbent for the treatment of MG oxalate dye. |
| format | Article |
| id | doaj-art-2fdcec87731e420dbad0b5b646c34754 |
| institution | Kabale University |
| issn | 2476-7204 2476-6615 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Iranian Environmental Mutagen Society |
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| series | Journal of Water and Environmental Nanotechnology |
| spelling | doaj-art-2fdcec87731e420dbad0b5b646c347542025-01-12T09:34:37ZengIranian Environmental Mutagen SocietyJournal of Water and Environmental Nanotechnology2476-72042476-66152024-11-019439841410.22090/jwent.2024.04.03718453Removal of Organic Dye Using Graphene-based Composite: Isotherm and Kinetic StudiesPreeti .0Meena Bhandari1Neeraj Kumari2School of Basic and Applied Sciences, K R Mangalam University,Gurugram, IndiaSchool of Basic and Applied Sciences, K R Mangalam University,Gurugram, IndiaSchool of Basic and Applied Sciences, K R Mangalam University,Gurugram, IndiaIn the present study, Graphene oxide (GO) and Graphene oxide-montmorillonite (GO-based Montmorillonite composites) composite was fabricated successfully and used further for the extraction of cationic pollutant, Malachite green (MG) oxalate. The structural characterization of synthesized composites was investigated through XRD, FT-IR, and FE-SEM techniques. Furthermore, GO and GO-based Montmorillonite composites are used as effective adsorbents in removing organic MG oxalate dye through batch extraction by varying pH, contact time, and concentration. XRD studies confirmed the successful formation of GO and exfoliated structure of GO-based Montmorillonite composites. The disappearance of peak at 2θ = 8.1° for GO-based Montmorillonite composites confirmed the homogenous distribution of GO sheets into layered Mt clay. The maximum uptake of Malachite green dye with GO-based Montmorillonite composites composite was 675 mg/g while in the case of GO, it was 315 mg/g. The more adsorption of dye in the case of GO-based Montmorillonite composites was due to the availability of additional functional groups resulting in more active site generation. The linear fitting of Langmuir isotherm and pseudo-second kinetic models further confirmed favorable chemical interaction of dye in the form of monolayer to both GO and GO-based Montmorillonite composites. Dye-adsorbed GO and GO-based Montmorillonite composites could be regenerated and used further for the adsorption of dye with more than 80% adsorption efficiency. Therefore, the study showed that GO-based Montmorillonite composites based Montmorillonite composites proved to be a promising and reasonably priced sorbent for the treatment of MG oxalate dye.https://www.jwent.net/article_718453_02920c283c5d504dafff2c5808326c85.pdfmalachite green oxalatemontmorillonitebatch extractionlangmuir isotherm modelpseudo-second order |
| spellingShingle | Preeti . Meena Bhandari Neeraj Kumari Removal of Organic Dye Using Graphene-based Composite: Isotherm and Kinetic Studies Journal of Water and Environmental Nanotechnology malachite green oxalate montmorillonite batch extraction langmuir isotherm model pseudo-second order |
| title | Removal of Organic Dye Using Graphene-based Composite: Isotherm and Kinetic Studies |
| title_full | Removal of Organic Dye Using Graphene-based Composite: Isotherm and Kinetic Studies |
| title_fullStr | Removal of Organic Dye Using Graphene-based Composite: Isotherm and Kinetic Studies |
| title_full_unstemmed | Removal of Organic Dye Using Graphene-based Composite: Isotherm and Kinetic Studies |
| title_short | Removal of Organic Dye Using Graphene-based Composite: Isotherm and Kinetic Studies |
| title_sort | removal of organic dye using graphene based composite isotherm and kinetic studies |
| topic | malachite green oxalate montmorillonite batch extraction langmuir isotherm model pseudo-second order |
| url | https://www.jwent.net/article_718453_02920c283c5d504dafff2c5808326c85.pdf |
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