期刊
MICRO & NANO LETTERS
卷 7, 期 7, 页码 651-653出版社
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/mnl.2012.0201
关键词
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资金
- National Natural Science Foundation of China [51102073]
- Natural Science Foundation of Anhui Province [10040606Q53, 11040606M100]
- Natural Science Foundation of Education Department of Anhui Province [KJ2012B154, KJ2012B148]
- Natural Science Foundation of Hefei University [12RC02]
Step-wise self-assembled flower-like delta-Bi2O3 microspheres from nanoparticles to nanosheets to microspheres were fabricated via a simple hydrothermal process, using glycine and Bi (NO3)(3)center dot 5H(2)O as starting materials without other additives. The crystal structures and morphologies of the as-obtained samples were characterised by X-ray powder diffraction, field emission scanning electron microscope and transmission electron microscopy. The UV-vis diffuse reflectance spectrum of the sample showed the product has an intense absorption in UV light regions and an estimated bandgap 3.55 eV. Moreover, under UV-light irradiation the sample exhibited high photocatalytic behaviour for the degradation of rhodamine B dye and excellent stability, which possibly has a board application in wastewater disposal fields.
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