Abstract
The recycling efficiency of the photocatalyst is an important factor in practical application, which is one of the problems that most powder catalysts need to solve urgently. Herein, the freestanding photocatalyst that BiOBr nanosheets anchored on coal-based carbon fibers (CCFs) has been prepared. Integrating BiOBr to CCFs nanosheets can enlarge the specific surface area of materials, broaden the light absorption range, and increase the carrier transport rate. The optimum BiOBr/CCFs-2 sample exhibits excellent photocatalytic degrade Rhodamine B (RhB) efficiency of 92 % within 20 min under visible light, and the kinetic constant is 2.6 times higher than that of BiOBr. The photogenerated carriers generated by BiOBr nanosheets transfer to CCFs with excellent electrical conductivity and then synergistically improving the photocatalytic performance of BiOBr/CCFs-2. The BiOBr/CCFs-2 still remain excellent photocatalytic activity and cycling stability after five cycles, and the composite will be expected to be widely applied in other fields.
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