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Cu2O-RGO/BiVO4 nanocomposite was obtained via a thermal treatment of Cu precursor in the presence of the pre-obtained RGO/BiVO4. The product was fully characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and UV-vis diffuse reflectance spectroscopy (DRS). It was found that olive-shaped BiVO4 of ca. 1.0-L2 mu m as well as small nanoparticles of Cu2O with a dimension of 40-50 nm were deposited on the surface of RGO. The as-formed Cu2O-RGO/BiVO4 nanocomposite exhibited superior photocatalytic activity for simultaneous CO2 reduction and benzyl alcohol oxidation under visible-light irradiation, as compared with bare Cu2O and RGO/BiVO4 nanocomposite. The superior photocatalytic performance observed over Cu2O-RGO/BiVO4 nanocomposite may be ascribed to the existence of the Z-Scheme charge transfer pathway in the nanocomposite, i.e., the photogenerated electrons transferred from BiVO4 to Cu2O to recombine with the photogenerated holes via RGO acting as a good electron mediator. The study demonstrates a high potential of using RGO to fabricate Z-Scheme photocatalytic systems for a variety of photocatalytic applications.
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INORGANIC CHEMISTRY COMMUNICATIONS
ISSN: 1387-7003
Year: 2019
Volume: 104
Page: 171-177
1 . 9 4 3
JCR@2019
4 . 4 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
ESI HC Threshold:184
JCR Journal Grade:3
CAS Journal Grade:4
Cited Count:
WoS CC Cited Count: 51
SCOPUS Cited Count: 53
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
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