Adsorptive potential of Zea mays tassel activated carbon towards the removal of metformin hydrochloride from pharmaceutical effluent
In the present study, Zea mays tassel which is a zero-value agricultural waste was used to produce a low-cost activated carbon using phosphoric acid as the activating agent. The prepared Z. mays tassel activated carbon (ZMTAC) was characterized by Fourier transform infrared spectroscopy (FTIR) and X...
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2021
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| Online Access: | https://www.tandfonline.com/doi/full/10.1080/15226514.2019.1652561?scroll=top&needAccess=true http://hdl.handle.net/11408/4251 |
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| author | Kalumpha, Menala Guyo, Upenyu Zinyama, P. Ngceboyakwethu Vakira, Felistus Muhle Nyamunda, Benias |
| author_facet | Kalumpha, Menala Guyo, Upenyu Zinyama, P. Ngceboyakwethu Vakira, Felistus Muhle Nyamunda, Benias |
| author_sort | Kalumpha, Menala |
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| description | In the present study, Zea mays tassel which is a zero-value agricultural waste was used to produce a low-cost activated carbon using phosphoric acid as the activating agent. The prepared Z. mays tassel activated carbon (ZMTAC) was characterized by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The adsorbent was applied for adsorption of an emerging contaminant, metformin hydrochloride (MH) from pharmaceutical effluent. The effects of solution pH, contact time, adsorbent dosage, and initial MH concentration and their interactions were investigated using a response surface methodology following a central composite experimental design (CCD). The optimum experimental conditions were as follows: pH 9.5, contact time 67.50 min, dosage 0.5750 g, and MH concentration 152.50 mg/L. The isotherm data followed Langmuir isotherm model (R2 = 0.979; sum of square deviation, SSD = 0.321). The saturation adsorption capacity of ZMTAC was 44.84 mg/g at 20 °C. MH adsorption process followed pseudo-second-order kinetics (higher R2 and smaller SSD values). The thermodynamic properties obtained showed that the adsorption process was feasible, endothermic and spontaneous. Consequently, the study demonstrated that Z. mays tassel is a potential precursor for preparation of adsorbents for the removal of the MH from pharmaceutical effluent. |
| format | Article |
| id | ir-11408-4251 |
| institution | My University |
| language | English |
| publishDate | 2021 |
| publisher | Taylor and Francis Inc. |
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| spelling | ir-11408-42512022-06-27T13:49:06Z Adsorptive potential of Zea mays tassel activated carbon towards the removal of metformin hydrochloride from pharmaceutical effluent Kalumpha, Menala Guyo, Upenyu Zinyama, P. Ngceboyakwethu Vakira, Felistus Muhle Nyamunda, Benias Zea mays tassel activated carbon metformin hydrochloride adsorption isotherm kinetics In the present study, Zea mays tassel which is a zero-value agricultural waste was used to produce a low-cost activated carbon using phosphoric acid as the activating agent. The prepared Z. mays tassel activated carbon (ZMTAC) was characterized by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The adsorbent was applied for adsorption of an emerging contaminant, metformin hydrochloride (MH) from pharmaceutical effluent. The effects of solution pH, contact time, adsorbent dosage, and initial MH concentration and their interactions were investigated using a response surface methodology following a central composite experimental design (CCD). The optimum experimental conditions were as follows: pH 9.5, contact time 67.50 min, dosage 0.5750 g, and MH concentration 152.50 mg/L. The isotherm data followed Langmuir isotherm model (R2 = 0.979; sum of square deviation, SSD = 0.321). The saturation adsorption capacity of ZMTAC was 44.84 mg/g at 20 °C. MH adsorption process followed pseudo-second-order kinetics (higher R2 and smaller SSD values). The thermodynamic properties obtained showed that the adsorption process was feasible, endothermic and spontaneous. Consequently, the study demonstrated that Z. mays tassel is a potential precursor for preparation of adsorbents for the removal of the MH from pharmaceutical effluent. 2021-05-26T12:24:47Z 2021-05-26T12:24:47Z 2019 Article 1549-7879 https://www.tandfonline.com/doi/full/10.1080/15226514.2019.1652561?scroll=top&needAccess=true http://hdl.handle.net/11408/4251 en International Journal of Phytoremediation;Vol.22 ; No.2 International Journal of Phytoremediation;Vol.22 ; No.2 : p.148 - 156 open Taylor and Francis Inc. |
| spellingShingle | Zea mays tassel activated carbon metformin hydrochloride adsorption isotherm kinetics Kalumpha, Menala Guyo, Upenyu Zinyama, P. Ngceboyakwethu Vakira, Felistus Muhle Nyamunda, Benias Adsorptive potential of Zea mays tassel activated carbon towards the removal of metformin hydrochloride from pharmaceutical effluent |
| title | Adsorptive potential of Zea mays tassel activated carbon towards the removal of metformin hydrochloride from pharmaceutical effluent |
| title_full | Adsorptive potential of Zea mays tassel activated carbon towards the removal of metformin hydrochloride from pharmaceutical effluent |
| title_fullStr | Adsorptive potential of Zea mays tassel activated carbon towards the removal of metformin hydrochloride from pharmaceutical effluent |
| title_full_unstemmed | Adsorptive potential of Zea mays tassel activated carbon towards the removal of metformin hydrochloride from pharmaceutical effluent |
| title_short | Adsorptive potential of Zea mays tassel activated carbon towards the removal of metformin hydrochloride from pharmaceutical effluent |
| title_sort | adsorptive potential of zea mays tassel activated carbon towards the removal of metformin hydrochloride from pharmaceutical effluent |
| topic | Zea mays tassel activated carbon metformin hydrochloride adsorption isotherm kinetics |
| url | https://www.tandfonline.com/doi/full/10.1080/15226514.2019.1652561?scroll=top&needAccess=true http://hdl.handle.net/11408/4251 |
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