Removal of Methylene Blue Dye from Aqueous Solution by Adsorption on Leonardite Char


Khaunjit Hemaviboon Jintana Klamtet


         The present investigation was studied the adsorption of MB dye from aqueous solution by using leonardite carbonized as adsorbent at various temperatures in a batch experiment. The prepared leonardite adsorbents were characterized by FTIR, BET, SEM and XRD.  The BET results showed that LN700 gave highest micropores in the surface which is in agreement with adsorption efficiency study. The optimum parameters for MB adsorption onto LN700 such as pH of MB solution, contact time and adsorbent particle size were investigated. The optimum contact time for MB removal onto 45-75 µm LN700 was 30 pH value of 10. The adsorption kinetic of MB onto LN700 shows linear plot of pseudo second-order model and the adsorption at equilibrium data fitted well to Langmuir isotherm model which the maximum adsorption capacity was 26.32 mg MB g-1. 

Keywords: Leonardite, Adsorption, Methylene blue


Ausavasukhi, A., Kampoosaen, C., & Kengnok, O. (2016). Adsorption characteristics of Congo red on carbonized leonardite. Journal of Cleaner Production, 134, 506–514.
Chammui, Y., Sooksamiti, P., Naksata, W., & Arqueropanyo, O. (2014). Kinetic and mechanism of Arsenic ions
removal by adsorption on leonadrite char as low cost adsorbent material. Journal of the Chilean Chemical
Society, 59(1), 2378-2381.
Ćurković, L., Cerjan-Stefanović, Š., & Filipan, T. (1997). Metal ion exchange by natural and modified zeolites. Water research, 31(6), 1379-1382.
Guimarães Gusmão, K. A., Alves Gurgel, L. V., Sacramento Melo, T. M., & Gil, L. F. (2013). Adsorption studies of methylene blue and gentian violet on sugarcane bagasse modified with EDTA dianhydride (EDTAD) in aqueous solutions: Kinetic and equilibrium aspects. Journal of Environmental Management, 118, 135–143.
He, X., Male, K.B., Nesterenko, P. N., Brabazon, D., Paull, B., & Luong, J. H. T. (2013). Adsorption and Desorption of Methylene Blue on Porous Carbon Monoliths and Nanocrystalline Cellulose. Applied Material and Interfaces, 5(17), 8796–8804.
Hijazi, A., Mcheik, A., Rammal, H., Rammal, W., Annan, H., Toufaily, J., & Hamieh, T. (2015). Biosorption of methylene blus from waste water using lebanese Cymbopogon Citratus (Citronnelle). European Scientific Journal, 11(21), 293-307.
Idris, S., Ndamitso, M. M., Iyaka, Y. A., & Mhhammad, E .B. (2012). Sawdust as an Adsorbent for the Removal of Methylene Blue from Aqueous Solution: Adsorption and Equilibrium Studies. Journal of chemical engineering, 1(1), 11-24.
Katanyoo, S., Naksata, W., Sooksamiti, P., Thiansem, S., & Arquero, O., (2012). Adsorption of Zinc Ion on Leonardite Prepared from Coal Waste. Oriental Journal of chemistry, 28(1), 373-378.
Langmuir, I. (1918). The adsorption of gases on plane surface of glass, mica and platinum. Journal of the American Chemical Society, 40, 1361-1403.
Olivella, M. À., Sole, M., Gorchs, R., Lao, C., & De Las Heras, F. X. C. (2011). Geochemical characterization of aspanish leonadrite coal. Archives of Mining Sciences, 56(4), 789-804.
Olusegun, S., & Ugba, E. (2013). Adsorption of Textile Wastes Containing Methylene Blue & Congo Red using Activated Carbon Produced from Coconut Shell. International Journal of Computational Engineering & Management, 16, 21–26.
Said, A. A., Aly, A. A. M., Abd El-Wahab, M. M., Soliman, S. A., El-Hafez, A. A. A., Helmey, V., & Goda, M. N. (2012). Potential Application of Propionic Acid Modified Sugarcane Bagasse for Removing of Basic and Acid Dyes from Industrial Wastewater. Resources and Environment, 2(3), 93-99. doi:
Weber, W. J., & Morris, J. C. (1963). Kinetics of adsorption on carbon from solution. Journal of the Sanitary Engineering Division, 89, 31-59.
X Pert HighScore Plus software version 2.1.0. (2004). PANalytical B.V. Almelo: Netherland.
Yamuna, M., & Kamaraj, M. (2016). Pineapple peel waste activated carbon as an adsorbent for the effective removal of methylene blue dye from aqueous solution. International Journal of ChemTech Research, 9(5), 544-550.
Zeledón-Toruño, Z. C., Lao-Luque, C., de Las Heras, F. X. C., & Sole-Sardans, M. (2007). Removal of PAHs from water using an immature coal (leonardite). Chemosphere, 67, 505-512.
Zengin, G.(2013). Effective removal of Zinc from an aqueous solution using Turkish leonadrite-clinoptilolite mixture as a sorbent. Environmental Earth Science, 70, 3031-3041.

Research Articles


How to Cite
HEMAVIBOON, Khaunjit; KLAMTET, Jintana. Removal of Methylene Blue Dye from Aqueous Solution by Adsorption on Leonardite Char. Naresuan University Journal: Science and Technology (NUJST), [S.l.], v. 28, n. 1, p. 82-93, feb. 2020. ISSN 2539-553X. Available at: <>. Date accessed: 08 mar. 2021. doi: