Keywords
adsorption
contaminants
isotherm.
methylene blue
nanographite oxide
Abstract
The adsorption properties of nanographite oxide (NGO) prepared by electrochemical exfoliation have been explored using methylene blue (MB) dye. It has been found that NGO adsorbs MB molecules through π-π interaction and proton transfer from the carboxyl group of NGO to the MB molecule. It has been proved that the adsorption process obeys the Freundlich isotherm model and the pseudo-second-order kinetic model, the thermodynamic parameters of which indicate that the process occurs spontaneously, while achieving a dye removal rate of 75 to 98% with a final dye concentration of only 0.005 mg dm−3.
References
.
Hummers W.S., Offeman R.E.
Journal of the American Chemical Society,
1958
.
Philosophical Transactions of the Royal Society of London,
1859
.
Boyd G.E., Adamson A.W., Myers L.S.
Journal of the American Chemical Society,
1947
.
Bannwarth C., Ehlert S., Grimme S.
Journal of Chemical Theory and Computation,
2019
.
Chung K.
Environmental Carcinogenesis and Ecotoxicology Reviews,
2016
.
Ehlert S., Stahn M., Spicher S., Grimme S.
Journal of Chemical Theory and Computation,
2021
.
Khan A.A., Singh R.P.
Colloids and Surfaces,
1987
.
.
Chernysheva D.V., Leontyev I.N., Avramenko M.V., Lyanguzov N.V., Grebenyuk T.I., Smirnova N.V.
Mendeleev Communications,
2021
.
Ma T., Chang P.R., Zheng P., Zhao F., Ma X.
Chemical Engineering Journal,
2014
.
Sheet I., Kabbani A., Holail H.
Energy Procedia,
2014
.
Shu D., Feng F., Han H., Ma Z.
Chemical Engineering Journal,
2017
.
Vasiliev V.P., Manzhos R.A., Krivenko A.G., Kabachkov E.N., Shulga Y.M.
Mendeleev Communications,
2021
.
Kuriganova A.B., Leontyev I.N., Avramenko M.V., Faddeev N.A., Smirnova N.V.
Mendeleev Communications,
2022
.
Hassan M.M., Hawkyard C.J.
2007
.
Ibarra Torres C.E., Serrano Quezada T.E., Kharissova O.V., Zeng H., Kharisov B.I., Luevano Hipólito E., Torres-Martínez L.M., González L.T.
Mendeleev Communications,
2023