Removal of reactive violet 5 azodye (V5R) using bamboo, and calabash biochar
We assess the adsorption capacity of bamboo and calabash biochar (BB and CB). Using 10–50 mg/L Reactive Violet 5 Azo dye (V5R) adsorbate, the kinetics, and adsorption isotherms are investigated. We pyrolyzed the bamboo, and calabash biomass at 500 °C, washed, and oven dried at 120 °C for 48 h. The B...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-10-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S240584402202196X |
| _version_ | 1811325951704825856 |
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| author | Samuel Kofi Tulashie Francis Kotoka Bennett Nana Botchway Kofi Adu |
| author_facet | Samuel Kofi Tulashie Francis Kotoka Bennett Nana Botchway Kofi Adu |
| author_sort | Samuel Kofi Tulashie |
| collection | DOAJ |
| description | We assess the adsorption capacity of bamboo and calabash biochar (BB and CB). Using 10–50 mg/L Reactive Violet 5 Azo dye (V5R) adsorbate, the kinetics, and adsorption isotherms are investigated. We pyrolyzed the bamboo, and calabash biomass at 500 °C, washed, and oven dried at 120 °C for 48 h. The Brunauer–Emmett–Teller (BET) method indicates that the BB and CB average pore diameters are 21.1 nm and 26.5 nm, with specific surface areas of 174.67 m2/g and 44.78 m2/g, respectively. The SEM reveals a larger granular shape of the CB having pinholes on the surface, but the BB exhibited interconnected structures like a mesh. The FTIR shows C=C, C=O, O–H, and C–O–C as the predominant functional groups on both BB and CB. The adsorption of V5R on BB and CB follows pseudo-second-order kinetics and favors Langmuir isotherm with maximum adsorption capacities of 5.106 mg/g, and 0.010 mg/g, respectively. The BB adsorbs 70.9–96% V5R, whilst CB adsorbs 0.1–0.2 % only. The results suggest that bamboo biochar has the potential to eliminate 70.9–96% of 10–50 mg/L V5R from an aqueous solution, hence suitable for removing V5R. In this study, we have also presented a prototype expected to eliminate 91.6%–99.8% of the V5R from an aqueous solution. |
| first_indexed | 2024-04-13T14:41:43Z |
| format | Article |
| id | doaj.art-bf4df8835b1d475ea326d212e612ffec |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-13T14:41:43Z |
| publishDate | 2022-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-bf4df8835b1d475ea326d212e612ffec2022-12-22T02:42:52ZengElsevierHeliyon2405-84402022-10-01810e10908Removal of reactive violet 5 azodye (V5R) using bamboo, and calabash biocharSamuel Kofi Tulashie0Francis Kotoka1Bennett Nana Botchway2Kofi Adu3University of Cape Coast, College of Agriculture and Natural Sciences, School of Physical Sciences, Department of Chemistry, Industrial Chemistry Unit, Cape Coast, Ghana; Corresponding author.University of Cape Coast, College of Agriculture and Natural Sciences, School of Physical Sciences, Department of Chemistry, Industrial Chemistry Unit, Cape Coast, GhanaUniversity of Cape Coast, College of Agriculture and Natural Sciences, School of Physical Sciences, Department of Chemistry, Industrial Chemistry Unit, Cape Coast, GhanaUniversity of Cape Coast, College of Agriculture and Natural Sciences, School of Physical Sciences, Department of Physics, Industrial Chemistry Unit, Cape Coast, GhanaWe assess the adsorption capacity of bamboo and calabash biochar (BB and CB). Using 10–50 mg/L Reactive Violet 5 Azo dye (V5R) adsorbate, the kinetics, and adsorption isotherms are investigated. We pyrolyzed the bamboo, and calabash biomass at 500 °C, washed, and oven dried at 120 °C for 48 h. The Brunauer–Emmett–Teller (BET) method indicates that the BB and CB average pore diameters are 21.1 nm and 26.5 nm, with specific surface areas of 174.67 m2/g and 44.78 m2/g, respectively. The SEM reveals a larger granular shape of the CB having pinholes on the surface, but the BB exhibited interconnected structures like a mesh. The FTIR shows C=C, C=O, O–H, and C–O–C as the predominant functional groups on both BB and CB. The adsorption of V5R on BB and CB follows pseudo-second-order kinetics and favors Langmuir isotherm with maximum adsorption capacities of 5.106 mg/g, and 0.010 mg/g, respectively. The BB adsorbs 70.9–96% V5R, whilst CB adsorbs 0.1–0.2 % only. The results suggest that bamboo biochar has the potential to eliminate 70.9–96% of 10–50 mg/L V5R from an aqueous solution, hence suitable for removing V5R. In this study, we have also presented a prototype expected to eliminate 91.6%–99.8% of the V5R from an aqueous solution.http://www.sciencedirect.com/science/article/pii/S240584402202196XAdsorption isothermKineticsAdsorptive capacity |
| spellingShingle | Samuel Kofi Tulashie Francis Kotoka Bennett Nana Botchway Kofi Adu Removal of reactive violet 5 azodye (V5R) using bamboo, and calabash biochar Heliyon Adsorption isotherm Kinetics Adsorptive capacity |
| title | Removal of reactive violet 5 azodye (V5R) using bamboo, and calabash biochar |
| title_full | Removal of reactive violet 5 azodye (V5R) using bamboo, and calabash biochar |
| title_fullStr | Removal of reactive violet 5 azodye (V5R) using bamboo, and calabash biochar |
| title_full_unstemmed | Removal of reactive violet 5 azodye (V5R) using bamboo, and calabash biochar |
| title_short | Removal of reactive violet 5 azodye (V5R) using bamboo, and calabash biochar |
| title_sort | removal of reactive violet 5 azodye v5r using bamboo and calabash biochar |
| topic | Adsorption isotherm Kinetics Adsorptive capacity |
| url | http://www.sciencedirect.com/science/article/pii/S240584402202196X |
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