Nguyễn, T.T., Bùi, T.M.N., Nguyễn, M.L. and Nguyễn, V.H. 2025. Influence of biochar content on structure and photocatalytic activity of TiO₂/g-C₃N₄/biochar composite materials. Hue University Journal of Science: Natural Science. 134, 1A (Mar. 2025). DOI:https://doi.org/10.26459/hueunijns.v134i1A.7764.