Matlaila, M. M., Khumalo, N. L., Mohomane, S. M., Linganizo-Dziike, C., Malevu, T. D., & Motaung, T. E. (2026). Biomass as a Green Source of Dopants: A Review on In-Situ Synthesis of P-N Co-Doped ZnO for Photocatalytic Dye Degradation. Journal of Environmental & Earth Sciences, 8(1), 1–17. https://doi.org/10.30564/jees.v8i1.11970