Study on property of Fe2O3-rGO-Bi2WO6 composite photocatalyst

Expand
  • Lianyungang Technical College,Lianyungang 222006

Received date: 2020-05-08

  Revised date: 2021-01-05

  Online published: 2021-05-07

Abstract

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.

Cite this article

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

References

[1] Cao S W,Shen B J,Tong T,et al.2D/2D heterojunction of ultrathin MXene/Bi2WO6 nanosheets for improved photocatalytic CO2 reduction[J].Advanced Functional Materials,2018,28(21):1800136.
[2] Zhang K,Wang J,Jiang W J,et al.Self-assembled perylene diimide based supramolecular heterojunction with Bi2WO6 for efficient visible-light-driven photocatalysis[J].Applied Catalysis B:Environmental,2018,232:175.
[3] Zargazi M,Entezari M H.Anodic electrophoretic deposition of Bi2WO6 thin film:high photocatalytic activity for degradation of a binary mixture[J].Applied Catalysis B:Environmental,2019,242:507.
[4] Di J,Chen C,Zhu C,et al.Bismuth vacancy mediated single unit cell Bi2WO6 nanosheets for boosting photocatalytic oxygen evolution[J].Applied Catalysis B:Environmental,2018,238:119.
[5] Huang C,Chen L L,Li H P,et al.Synthesis and application of Bi2WO6 for the photocatalytic degradation of two typical fluoroquinolones under visible light irradiation[J].RSC Advances,2019,9:27768.
[6] Han T Y,Wang X,Ma Y C,et al.Mesoporous Bi2WO6 sheets synthesized via a sol-gel freeze-drying method with excellent photocatalytic performance[J].Journal of Sol-Gel Science and Technology,2017,82(1):101.
[7] Alfaro S O,Martínez-de la Cruz A.Synthesis,characterization and visible-light photocatalytic properties of Bi2WO6 and Bi2W2O9 obtained by co-precipitation method[J].Applied Catalysis A,2010,383(1-2):128.
[8] Lai M T L,Lai C W,Lee K M,et al.Facile one-pot solvothermal method to synthesize solar active Bi2WO6 for photocatalytic degradation of organic dye[J].Journal of Alloys and Compounds,2019,801:502.
[9] Zhang C Y,Feng Y,Wu Q S.Facile fabrication of flower-shaped Bi2WO6 superstructures and visible-light-driven photocatalytic performance[J].Materials Research Bulletin,2012,47(8):1919.
[10] Zhang Y Q,Zeng X Y,Yu K,et al.Hydrothermal synthesis of hierarchically structured flower-like bismuth tungstate for photocatalytic tetracycline degradation[J].Chinese Jouranal of Inorgnic Chemistry,2019,35(11):2185.
[11] Bao L,Bao Q Y,Huangfu T S,et al.Hydrothermal synthesized Bi2WO6 nanoplates:growth mechanism and photocatalytic activities[J].Materials Research Express,2019,6(11):1150g6.
[12] 王江飞,张静,王志猛.不同形貌Bi2WO6的可控合成及光催化机理研究[J].人工晶体,2018,47(7):1418.
[13] Yang J J,Chen D M,Zhu Y,et al.3D-3D porous Bi2WO6/graphene hydrogel composite with excellent synergistic effect of adsorption-enrichment and photocatalytic degradation[J].Applied Catalysis B:Environmental,2017,205:228.
[14] 任静,李秀艳,辛王鹏,Bi2WO6/石墨烯复合材料的制备与光催化应用研究进展[J].材料导报,2020,34(3):05001.
[15] Zhu X,Zhu Y,Murali S,et al.Nanostructured reduced graphene oxide/Fe2O3 composite as a high-performance anode material for lithium ion batteries[J].ACS Nano,2011,5(4):3333.
[16] Zhang H,Lv X J,Li Y M,et al.P25-graphene composite as a high performance photocatalyst[J].ACS Nano,2010,4(1):380.
Options
Outlines

/