Enhancing visible-light photocatalytic activity by strongly binding flake BiFeO 3 nanoparticles on graphene sheets

Micro & nano letters

article

Ying Huang¹  Yuanyuan Shen¹  Xiulan Qin¹  Ke Wang¹ 

[1] Department of Applied Chemistry and The Key Laboratory of Space Applied Physics and Chemistry under Ministry of Education, School of Science, Northwestern Polytechnical University

关键词: graphene;    X-ray diffraction;    X-ray photoelectron spectra;    nanocomposites;    nanofabrication;    scanning electron microscopy;    ferrites;    bismuth compounds;    photoluminescence;    visible spectra;    nanoparticles;    ultraviolet spectra;    crystal growth from solution;    thermal analysis;    crystal microstructure;    photocatalysts;    photocatalysis;    graphene sheets;    visible light irradiation;    visible-light photocatalytic activity;    strongly binding flake nanoparticles;    hydrothermal method;    XRD;    TGA;    SEM;    X-ray photoelectron spectra;    PL spectra;    BiFeO3-C;    UV-visible spectra;    nanoparticles;    microstructure;   

DOI  :  10.1049/mnl.2019.0515

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

To investigate the influence of graphene on the photocatalytic activity of bismuth ferrite (BiFeO 3 ), BiFeO 3 and flaky BiFeO 3 @graphene were prepared through the hydrothermal-synthesis process. The as-prepared particles were characterised by XRD, TGA, SEM, X-ray photoelectron spectroscopy, and PL measurements. The results show that the BiFeO 3 nanoparticles have a microstructure and homogeneously attached to graphene sheets. Moreover, the flaky BiFeO 3 @graphene composites exhibited higher photocatalytic efficiency than pure BiFeO 3 , especially under visible light irradiation. The synergistic effects of graphene and BiFeO 3 of composites were proposed to guide the further improvement of their photocatalytic activity.

【 授权许可】

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