Abstract: | Abstract Magnetic π‐complexation sorbents were studied for petroleum product desulfurization by fluorescent technique. The ability of metal cation to form π‐complexation decreases in the order following: Cu+>Ni2+>Co2+>Al3+. The order is consistent with that of desulfurization performance of their corresponding magnetic sorbents (γ‐Al2O3‐Cu(I)>γ‐Al2O3‐Ni(II)>γ‐Al2O3‐Co(II)>γ‐Al2O3). Both π‐complexation strength and desulfurization performance of the sorbents increase with temperature. The adsorptive performances of magnetic γ‐Al2O3‐Cu(I) sorbent to different compounds have the following orders: DBT>fluorene, and pyrene>naphthalene>benzene, respectively. In this study, dibenzothiophene (DBT) was used as a model sulphur‐containing compound for desulfurization. The maximal adsorption amount of magnetic γ‐Al2O3‐Cu(I), was 0.362 mmol DBT g?1. |