Enhancing visible-light photocatalytic activity by strongly binding flake BiFeO 3 nanoparticles on graphene sheets
[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.
[发布日期] [发布机构]
[效力级别] [学科分类] 计算机科学（综合）
[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 [时效性]
