Preparation of poly(methyl methacrylate)–grafted Hyparrhenia hirta for methyl red removal from colored solutions
Poly(methyl methacrylate)–grafted Hyparrhenia hirta (PMMA-g-Hh) biopolymer was prepared through radical polymerization using potassium persulfate (KPS) and applied in adsorption of methyl red from colored solutions. Solvent amount, initiator concentration, monomer concentration, temperature, and rea...
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Taylor & Francis
2018
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| Online Access: | https://www.tandfonline.com/doi/abs/10.1080/10889868.2017.1337710?journalCode=bbrm20 http://hdl.handle.net/11408/3417 |
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| author | Guyo, Upenyu Matewere, Nyasha Matina, Kaina Nyamunda, Benias C. Moyo, Mambo |
| author2 | #PLACEHOLDER_PARENT_METADATA_VALUE# |
| author_facet | #PLACEHOLDER_PARENT_METADATA_VALUE# Guyo, Upenyu Matewere, Nyasha Matina, Kaina Nyamunda, Benias C. Moyo, Mambo |
| author_sort | Guyo, Upenyu |
| collection | DSpace |
| description | Poly(methyl methacrylate)–grafted Hyparrhenia hirta (PMMA-g-Hh) biopolymer was prepared through radical polymerization using potassium persulfate (KPS) and applied in adsorption of methyl red from colored solutions. Solvent amount, initiator concentration, monomer concentration, temperature, and reaction time were the reaction parameters investigated for grafting. The biopolymer was characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and x-ray diffraction spectroscopy (XRD). The adsorption process was investigated with respect to pH, contact time, initial concentration, adsorbent dosage, and temperature. The optimum adsorption parameters were pH 6, contact time 90 min, adsorbent dosage 0.6 g, and initial concentration 50 mg/L. The Langmuir adsorption model best fitted the adsorption process, with maximum adsorption capacities of 19.95, 6.89, and 4.02 mg/g at adsorbent dosages of 0.2, 0.6, and 1.0 g, respectively. The pseudo-second-order model described the kinetics data better. The adsorption process was physical, spontaneous, and endothermic. The adsorbent was still active after 10 adsorption-desorption cycles, showing its suitability for use in colored solutions treatment |
| format | text |
| id | ir-11408-3417 |
| institution | My University |
| language | English |
| publishDate | 2018 |
| publisher | Taylor & Francis |
| record_format | dspace |
| spelling | ir-11408-34172022-10-15T18:59:24Z Preparation of poly(methyl methacrylate)–grafted Hyparrhenia hirta for methyl red removal from colored solutions Guyo, Upenyu Matewere, Nyasha Matina, Kaina Nyamunda, Benias C. Moyo, Mambo #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# Graft copolymerization Scanning electron microscopy Methyl methacrylate Poly(methyl methacrylate)–grafted Hyparrhenia hirta (PMMA-g-Hh) biopolymer was prepared through radical polymerization using potassium persulfate (KPS) and applied in adsorption of methyl red from colored solutions. Solvent amount, initiator concentration, monomer concentration, temperature, and reaction time were the reaction parameters investigated for grafting. The biopolymer was characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and x-ray diffraction spectroscopy (XRD). The adsorption process was investigated with respect to pH, contact time, initial concentration, adsorbent dosage, and temperature. The optimum adsorption parameters were pH 6, contact time 90 min, adsorbent dosage 0.6 g, and initial concentration 50 mg/L. The Langmuir adsorption model best fitted the adsorption process, with maximum adsorption capacities of 19.95, 6.89, and 4.02 mg/g at adsorbent dosages of 0.2, 0.6, and 1.0 g, respectively. The pseudo-second-order model described the kinetics data better. The adsorption process was physical, spontaneous, and endothermic. The adsorbent was still active after 10 adsorption-desorption cycles, showing its suitability for use in colored solutions treatment 2018-12-11T09:05:52Z 2018-12-11T09:05:52Z 2017 text 1088-9868 https://www.tandfonline.com/doi/abs/10.1080/10889868.2017.1337710?journalCode=bbrm20 http://hdl.handle.net/11408/3417 en Bioremediation Journal;Vol. 21, No. 3-4: p. 163-175 open Taylor & Francis |
| spellingShingle | Graft copolymerization Scanning electron microscopy Methyl methacrylate Guyo, Upenyu Matewere, Nyasha Matina, Kaina Nyamunda, Benias C. Moyo, Mambo Preparation of poly(methyl methacrylate)–grafted Hyparrhenia hirta for methyl red removal from colored solutions |
| title | Preparation of poly(methyl methacrylate)–grafted Hyparrhenia hirta for methyl red removal from colored solutions |
| title_full | Preparation of poly(methyl methacrylate)–grafted Hyparrhenia hirta for methyl red removal from colored solutions |
| title_fullStr | Preparation of poly(methyl methacrylate)–grafted Hyparrhenia hirta for methyl red removal from colored solutions |
| title_full_unstemmed | Preparation of poly(methyl methacrylate)–grafted Hyparrhenia hirta for methyl red removal from colored solutions |
| title_short | Preparation of poly(methyl methacrylate)–grafted Hyparrhenia hirta for methyl red removal from colored solutions |
| title_sort | preparation of poly(methyl methacrylate)–grafted hyparrhenia hirta for methyl red removal from colored solutions |
| topic | Graft copolymerization Scanning electron microscopy Methyl methacrylate |
| url | https://www.tandfonline.com/doi/abs/10.1080/10889868.2017.1337710?journalCode=bbrm20 http://hdl.handle.net/11408/3417 |
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