▎ 摘　　要

Graphene wrapped metal phthalocyanine (MPc/RGO, M = Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+) composites are synthesized by a facile 'in situ hydrothermal' method, using graphene oxide, M (CH3COO)(2) and phthalic anhydride as the precursors. A biomimetic catalytic system of MPc/RGO and molecular O-2 have high activity for ultra-deep removal of dibenzothiophene (DBT) in model oil containing n-octane. Compared with pure graphene oxide and MPc, MPc/RGO composites displayed highly enhanced catalytic activity for the oxidation of dibenzothiophene in n-octane. The conversion ratio of DBT was up to 97.51% after 180 min treatment at 60 degrees C and atmospheric pressure. The photostability of RGO/MPc composites photocatalystic degradation of dibenzothiophene was investigated. Mechanistic studies revealed that the RGO/MPc - O-2 center dot species were the main active intermediate via the pi-pi stacking interaction of MPc and RGO. The RGO wrapped phthalocyanine materials offer great potential as active photocatalysts for degradation of thiophene derivatives in fuel.