Adsorption and removal of crystal violet dye from aqueous solution by modified rice husk
An approach to removing crystal violet (CV) dye from aqueous solutions was investigated by introducing a xanthate group on charred rice husk. The newly prepared charred rice husk (CRH) and xanthated rice husk (XRH) were characterized by XRD, SEM, FTIR, and elemental analysis. A batch technique was u...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-04-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844022005497 |
| _version_ | 1828490458797441024 |
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| author | Puspa Lal Homagai Rachana Poudel Sujan Poudel Ajaya Bhattarai |
| author_facet | Puspa Lal Homagai Rachana Poudel Sujan Poudel Ajaya Bhattarai |
| author_sort | Puspa Lal Homagai |
| collection | DOAJ |
| description | An approach to removing crystal violet (CV) dye from aqueous solutions was investigated by introducing a xanthate group on charred rice husk. The newly prepared charred rice husk (CRH) and xanthated rice husk (XRH) were characterized by XRD, SEM, FTIR, and elemental analysis. A batch technique was used to adsorb CV dye in aqueous suspensions. Different adsorbent quantities, concentrations, pH, and contact times were investigated to find the effect of these parameters. The optimum pH for both CRH and XRH was found to be 10. The adsorption capacity of CV dye onto CRH and XRH was found to be 62.85 mg/g and 90.02 mg/g at pH10, respectively. Langmuir isotherms could be reasonably explained by the experimental data. Within 60 min, equilibrium was achieved. Similarly, the kinetic data are best suited to the pseudo-second-order model. In comparison to XRH with CRH, XRH was found more efficient and can be used as a feasible alternative for removing CV dye from aqueous solutions. |
| first_indexed | 2024-12-11T10:45:02Z |
| format | Article |
| id | doaj.art-9359592199f847febec55fc56d67424c |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-12-11T10:45:02Z |
| publishDate | 2022-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-9359592199f847febec55fc56d67424c2022-12-22T01:10:30ZengElsevierHeliyon2405-84402022-04-0184e09261Adsorption and removal of crystal violet dye from aqueous solution by modified rice huskPuspa Lal Homagai0Rachana Poudel1Sujan Poudel2Ajaya Bhattarai3Department of Chemistry, Amrit Campus, Tribhuvan University, Kathmandu, NepalDepartment of Chemistry, Amrit Campus, Tribhuvan University, Kathmandu, NepalDepartment of Chemistry, Amrit Campus, Tribhuvan University, Kathmandu, Nepal; Department of Chemistry, TC Multiple Campus, Tribhuvan University, Kathmandu, NepalDepartment of Chemistry, MMAM Campus, Tribhuvan University, Biratnagar, Nepal; Corresponding author.An approach to removing crystal violet (CV) dye from aqueous solutions was investigated by introducing a xanthate group on charred rice husk. The newly prepared charred rice husk (CRH) and xanthated rice husk (XRH) were characterized by XRD, SEM, FTIR, and elemental analysis. A batch technique was used to adsorb CV dye in aqueous suspensions. Different adsorbent quantities, concentrations, pH, and contact times were investigated to find the effect of these parameters. The optimum pH for both CRH and XRH was found to be 10. The adsorption capacity of CV dye onto CRH and XRH was found to be 62.85 mg/g and 90.02 mg/g at pH10, respectively. Langmuir isotherms could be reasonably explained by the experimental data. Within 60 min, equilibrium was achieved. Similarly, the kinetic data are best suited to the pseudo-second-order model. In comparison to XRH with CRH, XRH was found more efficient and can be used as a feasible alternative for removing CV dye from aqueous solutions.http://www.sciencedirect.com/science/article/pii/S2405844022005497Adsorption isothermBio-adsorbentCrystal violet dyeXanthated rice husk |
| spellingShingle | Puspa Lal Homagai Rachana Poudel Sujan Poudel Ajaya Bhattarai Adsorption and removal of crystal violet dye from aqueous solution by modified rice husk Heliyon Adsorption isotherm Bio-adsorbent Crystal violet dye Xanthated rice husk |
| title | Adsorption and removal of crystal violet dye from aqueous solution by modified rice husk |
| title_full | Adsorption and removal of crystal violet dye from aqueous solution by modified rice husk |
| title_fullStr | Adsorption and removal of crystal violet dye from aqueous solution by modified rice husk |
| title_full_unstemmed | Adsorption and removal of crystal violet dye from aqueous solution by modified rice husk |
| title_short | Adsorption and removal of crystal violet dye from aqueous solution by modified rice husk |
| title_sort | adsorption and removal of crystal violet dye from aqueous solution by modified rice husk |
| topic | Adsorption isotherm Bio-adsorbent Crystal violet dye Xanthated rice husk |
| url | http://www.sciencedirect.com/science/article/pii/S2405844022005497 |
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