Asmaly, H., Kabbashi, N., Alam, M.Z., Al-Khatib, M. and Sulaman, A. 2023. THE EFFECT OF ACID MODIFICATION ON ADSORPTION OF ORTHO-NITROPHENOL FROM AQUEOUS SOLUTION BY MULTI WALL CARBON NANOTUBES AND CONICAL CARBON NANOFIBERS: CHARACTERIZATION, MODELLING AND PERFORMANCE. Chemical and Natural Resources Engineering Journal (Formally known as Biological and Natural Resources Engineering Journal). 7, 1 (Jul. 2023), 58–89. DOI:https://doi.org/10.31436/cnrej.v7i1.86.