期刊
ACS OMEGA
卷 4, 期 25, 页码 21063-21071出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.9b02411
关键词
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资金
- National Natural Science Foundation of China [21808019]
- Natural Science Foundation of Jiangsu Province [BK20181048, BK20180958, BK20181476]
- Science and Technology Bureau of Changzhou [CJ20190074]
- Science Foundation of Jiangsu University of Technology [KYY17001]
- Natural Science Foundation of the Higher Education Institutions of Jiangsu Province [18KJB150014]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [SJCX19_0738]
Visible-lightdriven C-TiO2 nanocomposites were prepared via a simple calcination and acid etching process. The C-TiO2 nanocomposites were characterized by X-ray photoelectron spectroscopy, Raman spectroscopy, X-ray diffraction, transmission electron microscopy, and high-resolution TEM. The results showed that TiO2 nanoparticles were combined with a porous carbon layer through surface C-O groups, which facilitates the strong interface interaction. The interface combination of nano-TiO2 and carbon material increases the specific surface area of nano-TiO2, widens the range of light response, and improves the efficiency of light- induced electron migration. The visible-light photocatalytic activity of the prepared photocatalyst was evaluated by the decomposition of tetracycline aqueous solution. Compared with that of pure TiO2, the photocatalytic activity of C-TiO2 nanocomposites was significantly improved. Furthermore, a possible photocatalytic mechanism was also tentatively proposed. This work can promote the development of active photocatalysts under solar light for the photodegradation of environmental pollutants.
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