Respected, I want to experiment on the adsorption of BTEX onto activated carbon. In most articles reviewed, the BTRX chemicals (benzene, toluene, ethylbenzene, and xylene) adsorption percentage removal shown for each in the figure reference Melaphi et al., 2023.

Secondly, I noticed in a paper that adsorption of BTEX onto the activated carbon demonstrated in the figure without separating the chemicals reference Saeid Fadaei et al., 2017. A file is attached shown examples of the figures.