Preparation Of Activated Carbon From Rice Husk By Microwave Irradiation For Adsorption Of Methylene Blue Dye
In this study, rice husk based activated carbon (RHAC) was prepared for the removal of methylene blue (MB) dye. Rice husk was used to prepare RHAC through physical activation process which involved microwave irradiation and carbon dioxide (CO2) gasification. The effect of initial dye concentration (...
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| Format: | Monograph |
| Language: | English |
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Universiti Sains Malaysia
2017
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| Online Access: | http://eprints.usm.my/53214/ http://eprints.usm.my/53214/1/Preparation%20Of%20Activated%20Carbon%20From%20Rice%20Husk%20By%20Microwave%20Irradiation%20For%20Adsorption%20Of%20Methylene%20Blue%20Dye%20_Siti%20Khairunnisa%20Ishak_K4_2017.pdf |
| _version_ | 1848882465627701248 |
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| author | Ishak, Siti Khairunnisa |
| author_facet | Ishak, Siti Khairunnisa |
| author_sort | Ishak, Siti Khairunnisa |
| building | USM Institutional Repository |
| collection | Online Access |
| description | In this study, rice husk based activated carbon (RHAC) was prepared for the removal of methylene blue (MB) dye. Rice husk was used to prepare RHAC through physical activation process which involved microwave irradiation and carbon dioxide (CO2) gasification. The effect of initial dye concentration (25-500 mg/L), contact time (1-24 h) and solution temperature (30-60°C) were evaluated. The optimum preparation conditions were obtained from response surface methodology (RSM) at radiation power of 440 W and activation time of 4.28 minutes which have resulted in 83.93% MB removal and 32.55% RHAC yield. Optimized RHAC sample has surface area of 668.30 m2/g, pore volume of 0.348 cm3/g and fixed carbon content of 70.34. The pore of RHAC was mesoporous type with average pore diameter of 4.42 nm. The adsorption equilibrium data is to be fitted into three isotherm models which are Langmuir, Freundlich and Temkin. Adsorption equilibrium and kinetic of MB on RHAC were best fitted by Freundlich isotherm and pseudo-second order kinetic models. From thermodynamic study, the adsorption process of MB onto RHAC was endothermic in nature and spontaneous process. |
| first_indexed | 2025-11-15T18:35:21Z |
| format | Monograph |
| id | usm-53214 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:35:21Z |
| publishDate | 2017 |
| publisher | Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-532142022-06-30T13:34:13Z http://eprints.usm.my/53214/ Preparation Of Activated Carbon From Rice Husk By Microwave Irradiation For Adsorption Of Methylene Blue Dye Ishak, Siti Khairunnisa T Technology TP155-156 Chemical engineering In this study, rice husk based activated carbon (RHAC) was prepared for the removal of methylene blue (MB) dye. Rice husk was used to prepare RHAC through physical activation process which involved microwave irradiation and carbon dioxide (CO2) gasification. The effect of initial dye concentration (25-500 mg/L), contact time (1-24 h) and solution temperature (30-60°C) were evaluated. The optimum preparation conditions were obtained from response surface methodology (RSM) at radiation power of 440 W and activation time of 4.28 minutes which have resulted in 83.93% MB removal and 32.55% RHAC yield. Optimized RHAC sample has surface area of 668.30 m2/g, pore volume of 0.348 cm3/g and fixed carbon content of 70.34. The pore of RHAC was mesoporous type with average pore diameter of 4.42 nm. The adsorption equilibrium data is to be fitted into three isotherm models which are Langmuir, Freundlich and Temkin. Adsorption equilibrium and kinetic of MB on RHAC were best fitted by Freundlich isotherm and pseudo-second order kinetic models. From thermodynamic study, the adsorption process of MB onto RHAC was endothermic in nature and spontaneous process. Universiti Sains Malaysia 2017-06-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/53214/1/Preparation%20Of%20Activated%20Carbon%20From%20Rice%20Husk%20By%20Microwave%20Irradiation%20For%20Adsorption%20Of%20Methylene%20Blue%20Dye%20_Siti%20Khairunnisa%20Ishak_K4_2017.pdf Ishak, Siti Khairunnisa (2017) Preparation Of Activated Carbon From Rice Husk By Microwave Irradiation For Adsorption Of Methylene Blue Dye. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Kimia. (Submitted) |
| spellingShingle | T Technology TP155-156 Chemical engineering Ishak, Siti Khairunnisa Preparation Of Activated Carbon From Rice Husk By Microwave Irradiation For Adsorption Of Methylene Blue Dye |
| title | Preparation Of Activated Carbon From Rice Husk By Microwave Irradiation For Adsorption Of Methylene Blue Dye |
| title_full | Preparation Of Activated Carbon From Rice Husk By Microwave Irradiation For Adsorption Of Methylene Blue Dye |
| title_fullStr | Preparation Of Activated Carbon From Rice Husk By Microwave Irradiation For Adsorption Of Methylene Blue Dye |
| title_full_unstemmed | Preparation Of Activated Carbon From Rice Husk By Microwave Irradiation For Adsorption Of Methylene Blue Dye |
| title_short | Preparation Of Activated Carbon From Rice Husk By Microwave Irradiation For Adsorption Of Methylene Blue Dye |
| title_sort | preparation of activated carbon from rice husk by microwave irradiation for adsorption of methylene blue dye |
| topic | T Technology TP155-156 Chemical engineering |
| url | http://eprints.usm.my/53214/ http://eprints.usm.my/53214/1/Preparation%20Of%20Activated%20Carbon%20From%20Rice%20Husk%20By%20Microwave%20Irradiation%20For%20Adsorption%20Of%20Methylene%20Blue%20Dye%20_Siti%20Khairunnisa%20Ishak_K4_2017.pdf |