Truong, T., Nguyen Thi, H. and Tham, D.T. 2025. Characterization and rhodamine B adsorption of hydrochar made from the distilled waste of lemongrass. Science & Technology Development Journal: Natural Sciences. 8, Special issue (Feb. 2025), In press. DOI:https://doi.org/https://doi.org/10.32508/stdjns.v8iSpecial%20issue.1336.