What happens if activated carbon is added to water with potassium permanganate or dye? I just ran out of coal

What happens if activated carbon is added to water with potassium permanganate or dye? I just ran out of coal, I can’t do it, but there is no such experience on the Internet

This experiment is the simplest and most obvious way to show the phenomenon of sorption. As you know, activated carbon has a very rough and loosened surface. Its surface ranges from 500 to 2000 m2.
The essence of the experiment is that if you immerse (throw) coal in a solution colored with some kind of dye, or with potassium permanganate, as stated in the condition of the question, it absorbs the dissolved substance onto its surface. Visually, as a result, you see discoloration of your colored solution!