期刊
RSC ADVANCES
卷 4, 期 65, 页码 34539-34547出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra03443k
关键词
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资金
- National Nature Science Foundation of China [21177050, 21206060, 21376109]
- Natural Science Foundation of Jiangsu Province [BK20131207, BK20140533]
- Postdoctoral Foundation of China [2014M551520, 2013M541619]
- Doctoral Innovation Fund of Jiangsu Province [CXLX13-651]
- Jiangsu Key Laboratory for Environment Functional Materials [SJHG1308]
A facile, simple method was developed for the synthesis of g-C3N4/Ag2CO3 at room temperature. The samples were characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), transmission electron microscopy (TEM), diffuse reflectance spectroscopy (DRS) and Fourier transformed infrared (FT-IR) spectroscopy. The photocatalytic activity of g-C3N4/Ag2CO3 composites for the photo-degradation of methyl orange (MO) was much higher than that of the pure Ag2CO3. The kinetics of the g-C3N4/Ag2CO3 composites were proposed. The electrochemical impedance spectroscopy of g-C3N4/Ag2CO3 composites and a series of radical trapping experiment were also carried out to explore the possible photocatalytic mechanism. The results indicated that the enhanced photocatalytic activity of gC(3)N(4)/Ag2CO3 composites under visible light irradiation was attributed to the formed heterostructure between g-C3N4 and Ag2CO3, which was beneficial to the separation of the photoinduced electron-hole pairs.
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