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author:

Li, Xiaona (Li, Xiaona.) [1] | Wei, Dingqiong (Wei, Dingqiong.) [2] | Ye, Lin (Ye, Lin.) [3] | Li, Zhaohui (Li, Zhaohui.) [4] (Scholars:李朝晖)

Indexed by:

Scopus SCIE

Abstract:

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.

Keyword:

BiVO4 Cu2O Photocatalytic Visible light Z-Scheme

Community:

  • [ 1 ] [Li, Xiaona]Jilin Vocat Coll Engn, Siping 136000, Peoples R China
  • [ 2 ] [Li, Xiaona]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Res Inst Photocatalysis, Fuzhou 350116, Fujian, Peoples R China
  • [ 3 ] [Wei, Dingqiong]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Res Inst Photocatalysis, Fuzhou 350116, Fujian, Peoples R China
  • [ 4 ] [Ye, Lin]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Res Inst Photocatalysis, Fuzhou 350116, Fujian, Peoples R China
  • [ 5 ] [Li, Zhaohui]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Res Inst Photocatalysis, Fuzhou 350116, Fujian, Peoples R China

Reprint 's Address:

  • 李朝晖

    [Li, Zhaohui]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Res Inst Photocatalysis, Fuzhou 350116, Fujian, Peoples R China

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Source :

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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