Luong, H.V.T., Nguyen, T.N.Y., Nguyen, V.K., Ngo, T.N.M., Nguyen, N.N. and Ly, P.T. 2023. Synthesis and application of Fe3O4/GO/PVP composite material for methylene blue adsorption. CTU Journal of Innovation and Sustainable Development . 15, 2 (Jul. 2023), 1-10. DOI:https://doi.org/10.22144/ctu.jen.2023.014.