Fe2O3-reduced graphene oxide(rGO)-Bi2WO6 (F-r-B)heterojunction composite photocatalyst with complete microspherical morphology was successfully synthesized by one-step hydrothermal method.The effective combination of three modification methods for BWO catalytic performance,such as combination of different photocatalysts,ion doping and GO composite,was combined effectively together.The morphology,crystal structure,visible-light photocatalytic performance and their evolution trend of F-r-B samples with the different Fe/Bi values were systematically studied using X-ray diffractometer (XRD),scanning electron microscope (FE-ESEM),UV-visible spectrophotometer (UV-Vis) and other analytical instruments.On account of the synergistic effect of rGO,heterojunction and minor Fe3+ ion doping,the absorption wavelength of F-r-B samples firstly undergone a red shift and then changed to a blue shift,the band gap correspondingly decreased first and then increased,and its visible light photocatalytic activity first increased and then decreased.
Fu Lu, Liu Shunqiang, Zhang Hao, Qian Qinghua, Zhang Ping, Du Gang
. Study on property of Fe2O3-rGO-Bi2WO6 composite photocatalyst[J]. New Chemical Materials, 2021
, 49(4)
: 122
-126
.
DOI: 10.19817/j.cnki.issn1006-3536.2021.04.027
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