Preparation of Edamame Bean Pod Based Activated Carbon for Methylene Blue Dye Adsorption
Methylene blue (MB) dye is a basic and cationic dye. It is a widely used dye in the textile industry. However, its existence in water bodies was despised due to its harmful properties. Hence, an effort was made in this study to produce edamame bean pod-based activated carbon (EBPAC) through microwave heating coupled with carbon dioxide, CO2 gasification, at radiation power and radiation time of 470 W and 4 min, respectively. The adsorption equilibrium study revealed that when the MB starting concentration changed from 25 to 300 mg/L, MB amount adsorbed rose from 18.26 to 97.06 mg/g, whereas MB removal decreased from 87.66 to 38.83%. Isotherm study disclosed that the MB-EBPAC adsorption system accurately followed the Freundlich model which signified multilayer coverage of MB dye on the layer surface of EBPAC. The Langmuir maximum single layer adsorption capacity, Qm was determined to be 118.31 mg/g. In the kinetic study, the kinetic behaviour was excellently obeyed pseudo-first order (PFO) kinetic model.KeywordsAdsorption processActivated carbonMicrowave heatingMethylene blue
Authors
Abstract
Methylene blue (MB) dye is a basic and cationic dye. It is a widely used dye in the textile industry. However, its existence in water bodies was despised due to its harmful properties. Hence, an effort was made in this study to produce edamame bean pod-based activated carbon (EBPAC) through microwave heating coupled with carbon dioxide, CO2 gasification, at radiation power and radiation time of 470 W and 4 min, respectively. The adsorption equilibrium study revealed that when the MB starting concentration changed from 25 to 300 mg/L, MB amount adsorbed rose from 18.26 to 97.06 mg/g, whereas MB removal decreased from 87.66 to 38.83%. Isotherm study disclosed that the MB-EBPAC adsorption system accurately followed the Freundlich model which signified multilayer coverage of MB dye on the layer surface of EBPAC. The Langmuir maximum single layer adsorption capacity, Qm was determined to be 118.31 mg/g. In the kinetic study, the kinetic behaviour was excellently obeyed pseudo-first order (PFO) kinetic model.KeywordsAdsorption processActivated carbonMicrowave heatingMethylene blue
Citation
APA: Yusop, M.F.M., Yahaya, N.K.E.M., Karim, J., Yusoff, M.A.M., Abdullah, A.Z., Ahmad, M.A. (2023). Preparation of Edamame Bean Pod Based Activated Carbon for Methylene Blue Dye Adsorption. In: Shukor, H., Halim, H.N.A., Ong, H.L., Lee, BB., Pisal, M.H.M. (eds) Emerging Technologies for Future Sustainability . ICoBiomasSE 2022. Green Energy and Technology. Springer, Singapore. https://doi.org/10.1007/978-981-99-1695-5_19