Abstract
Cocoon-like Ag3PO4 (C-Ag3PO4) with hollow structure was synthesized via ion-exchange route using Ag2MoO4 and Na2HPO4 as precursors. Photocatalytic degradation experiments of the C-Ag3PO4 toward ciprofloxacin (CIP) were investigated under visible light irradiation. The C-Ag3PO4 showed superior photodegradation of CIP owing to its larger surface area and hollow structure. Besides, the C-Ag3PO4 exhibited improved photocatalytic performance and good stability after repeating cycles, which could be attributed to the formed metal silver under visible light irradiation. Moreover, radical trap experiment was carried out, which indicated that the photo-induced holes (h+) and superoxide radicals (O2−) acted as the main reactive species in the photodegradation process.
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