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Erschienen in:
12.09.2016
Efficient visible-light driven photocatalysts: coupling TiO2(AB) nanotubes with g-C3N4 nanoflakes
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 2/2017
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Abstract
The wide application of the titanium dioxide (TiO2) as the photocatalysts is greatly hindered by its intrinsic large band gap and usually fast electron–hole recombination. Here, we reported the exploration of coupling g-C3N4 nanoflakes to TiO2 nanotubes with the anatase and TiO2(B) mixed phases (TiO2(AB)) toward the efficient visible-light-driven hybrid photocatalyst. It is found that coupling TiO2(AB) nanotubes with g-C3N4 nanoflakes could bring a profoundly extension the visible light adsorption capacity and enhanced photogenerated carrier separation. Accordingly, they exhibit much higher efficient photocatalytic activities toward the degradation of sulforhodamine B under the visible light irradiation, which is enhanced for nearly 15 times to those of the TiO2(AB) and g-C3N4, suggesting their promising practical applications as novel and efficient semiconductor photocatalysts for the water purification.