Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
50014 | Catalysis Communications | 2013 | 4 Pages |
•Ag@AgI intercalated K4Nb6O17 was synthesized under microwave irradiation.•The photocatalyst exhibited high activity for the degradation of RhB.•A mechanism was proposed to explain the excellent performance for RhB degradation.
In this study, a novel plasmonic photocatalyst, Ag@AgI intercalated layered niobate, was synthesized via a microwave-assisted ion-exchange method. The composite materials prepared were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray fluorescence spectrometry (XRF), Brunauer–Emmett–Teller (BET) and ultraviolet–visible diffuse reflection spectra (UV–vis). The as-prepared plasmonic photocatalyst exhibited an enhanced and stable photocatalytic performance for the degradation of Rhodamine B (RhB) and up to 83% of RhB was degraded in 40 min under visible light irradiation. The mechanism of separation of the photo-generated electrons and holes at the K4Nb6O17/Ag@AgI composite was discussed.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide