期刊
CRYSTENGCOMM
卷 13, 期 12, 页码 4010-4017出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1ce05113j
关键词
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资金
- National Basic Research Program of China [2009CB930400, 2007CB209705]
- National Natural Science Foundation of China [21071097, 20901050]
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure [SKL200901SIC]
A high-efficiency Bi2O2CO3 photocatalyst was successfully synthesized using tri-sodium citrate as both the coordinating agent and carbon source through a hydrothermal process. Morphology modulation of the obtained products could be easily realized by tuning the concentration of tri-sodium citrate in sponge-like, rose-like and plate-like shapes. The as-prepared sponge-like Bi2O2CO3 microspheres, owning a narrowed band gap of 2.87 eV and a higher BET surface area of 43.99m(2) g(-1), exhibit powerful visible-light-photocatalytic activity for the degradation of dyes under 300 W Xe lamp light irradiation. It is worthy to note that the optimal sponge-like Bi2O2CO3 microspheres also possess superior photocatalytic ability under natural sunlight.
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