Alpinia galanga stem activated carbon prepared via microwave assisted for adsorption of methylene blue dye
| dc.contributor.author | Nur Azian Bte Ahammad | |
| dc.date.accessioned | 2021-03-04T05:05:44Z | |
| dc.date.available | 2021-03-04T05:05:44Z | |
| dc.date.issued | 2019-06 | |
| dc.description.abstract | Dyes contained in textile industrial wastewaters can cause the most deliberate environmental problems because it impedes light penetration and damage the water quality of the receiving streams. The focal point of this study is to synthesis activated carbon (AC) derived from Alpinia Galanga Stem (AGS) based activated carbon for the removal of methylene blue (MB) dye from aqueous solution, AGSAC was prepared by applying microwave irradiation under the flow of carbon dioxide (CO2) gasification. The factors of contact time (from 0 to 24 hours) and initial concentration (25 mg/L-300 mg/L) on the adsorption performance of AGSAC were studied. Optimum preparation conditions for AGSAC were found at 400 W of radiation power and 4 minutes activation time respectively by using response surface methodology (RSM), which resulted in 95.67% of MB dye removal. The optimized AGSAC has Bruneaur-Emmet-Teller (BET) surface area of 172.19 m2 /g, mesopore surface area of 103.32 m2 /g, total pore volume of 0.1077 cm3 /g and fixed carbon content of 47.63%. The pore diameter of AGSAC was found to be mesoporous type with pore diameter of 2.50 nm. Freundlich isotherm and pseudosecond-order were found as the best fitted model for MB adsorption equilibrium and kinetic respectively onto prepared AGSAC. Intraparticle diffusion rate increased with increasing high initial concentrations due to the driving force motion increased. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/11762 | |
| dc.language.iso | en | en_US |
| dc.title | Alpinia galanga stem activated carbon prepared via microwave assisted for adsorption of methylene blue dye | en_US |
| dc.type | Other | en_US |
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