TY - JOUR
T1 - Hydrothermal synthesis and visible-light photocatalytic activity of porous peanut-like BiVO4 and BiVO4/Fe3O4 submicron structures
AU - Zhu, Gangqiang
AU - Hojamberdiev, Mirabbos
AU - Que, Wenxiu
AU - Liu, Peng
PY - 2013/12
Y1 - 2013/12
N2 - Porous peanut-like BiVO4 and BiVO4/Fe 3O4 submicron structures were synthesized by a template-free hydrothermal process at 160 C for 24 h. The as-synthesized samples were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometer (VSM) and UV-vis spectroscopy. The photocatalytic activity of BiVO4 and BiVO4/Fe 3O4 submicron structures were evaluated for the degradation of Rhodamine B (RhB) and methylene blue (MB) under visible light irradiation with and without the assistance of H2O2. According to the experimental results obtained, porous peanut-like BiVO 4/Fe3O4 composite photocatalyst shows higher photocatalytic activity in the H2O2-assisted system under visible light irradiation compared to BiVO4. Recycling test on the BiVO4/Fe3O4 composite photocatalyst for the degradation of RhB under visible light irradiation indicates that the composite photocatalyst is stable in the H2O2-assisted system in five cycles. Therefore, this composite photocatalyst will be beneficial for efficient degradation of organic pollutants present in water and air under solar light.
AB - Porous peanut-like BiVO4 and BiVO4/Fe 3O4 submicron structures were synthesized by a template-free hydrothermal process at 160 C for 24 h. The as-synthesized samples were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometer (VSM) and UV-vis spectroscopy. The photocatalytic activity of BiVO4 and BiVO4/Fe 3O4 submicron structures were evaluated for the degradation of Rhodamine B (RhB) and methylene blue (MB) under visible light irradiation with and without the assistance of H2O2. According to the experimental results obtained, porous peanut-like BiVO 4/Fe3O4 composite photocatalyst shows higher photocatalytic activity in the H2O2-assisted system under visible light irradiation compared to BiVO4. Recycling test on the BiVO4/Fe3O4 composite photocatalyst for the degradation of RhB under visible light irradiation indicates that the composite photocatalyst is stable in the H2O2-assisted system in five cycles. Therefore, this composite photocatalyst will be beneficial for efficient degradation of organic pollutants present in water and air under solar light.
KW - Bismuth vanadate
KW - Composite photocatalyst
KW - Hydrothermal synthesis
KW - Magnetite
KW - Visible light irradiation
UR - https://www.scopus.com/pages/publications/84883792956
U2 - 10.1016/j.ceramint.2013.05.017
DO - 10.1016/j.ceramint.2013.05.017
M3 - 文章
AN - SCOPUS:84883792956
SN - 0272-8842
VL - 39
SP - 9163
EP - 9172
JO - Ceramics International
JF - Ceramics International
IS - 8
ER -