期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 12, 期 5, 页码 4028-4034出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2012.6168
关键词
Bismuth Subcarbonate; Shape-Dependent; Photocatalytic Activity; Organic Dyes
类别
资金
- National Natural Science Foundation of China [20801043, 21171136]
- Program for New Century Excellent Talents in University [NCET-09-0136]
- Open Research Fund of State Key Laboratory of Materials Processing and Die and Mould Technology, Huazhong University of Science and Technology [2010-P06]
Different shaped bismuth subcarbonate ((BiO)(2)CO3) nanostructures including irregular nanoplates, relatively uniform nanoplates and nanocubes were prepared and characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV vis diffuse reflection spectroscopy (DRS) and nitrogen adsorption. The photocatalytic performance of the as-synthesized (BiO)(2)CO3 nanostructures on the degradation of Rhodamine B (RhB), methyl orange (MO) and methyl blue (MB) were evaluated under UV-vis light irradiation (modeling sunlight). The photocatalysis tests showed that all the different (BiO)(2)CO3 nanostructures displayed enhanced photodegradation performance compared with commercial (BiO)(2)CO3. The irregular (BiO)(2)CO3 nanoplates exhibited the highest photocatalytic activity on the degradation of different organic dyes. (BiO)(2)CO3 nanosturctures exhibited the different capacity to bleach the three organic dyes, which might be attributed to their different molecular structures. This work may provide a potential photocatalyst for the environmental pollutants treatments.
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