Facile Fabrication of C-TiO 2 Nanocomposites with Enhanced Photocatalytic Activity for Degradation of Tetracycline.
ACS omega(2019)
Abstract
Visible-lightdriven C-TiO nanocomposites were prepared via a simple calcination and acid etching process. The C-TiO nanocomposites were characterized by X-ray photoelectron spectroscopy, Raman spectroscopy, X-ray diffraction, transmission electron microscopy, and high-resolution TEM. The results showed that TiO nanoparticles were combined with a porous carbon layer through surface C-O groups, which facilitates the strong interface interaction. The interface combination of nano-TiO and carbon material increases the specific surface area of nano-TiO, 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 TiO, the photocatalytic activity of C-TiO 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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Key words
Photocatalysts,Photocatalysis
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