Three-dimensional BiOI/TiO2 heterostructures with photocatalytic activity under visible light irradiation

The BiOI/TiO 2 heterostructures with microsphere morphology were successfully synthesized via a solvent-thermal method. The photocatalytic performance of BiOI/TiO 2 heterostructures was investigated via the degradation of Rhodamine B (RhB). The results indicate that the BiOI/TiO 2 heterostructures e...

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Bibliographic Details
Published in:Journal of porous materials 2018-12, Vol.25 (6), p.1805-1812
Main Authors: Tian, Renwen, Liu, Dong, Wang, Jianqiao, Zhou, Jun, Nie, Er, Piao, Xianqing, Sun, Zhuo
Format: Article
Language:English
Subjects:
Catalysis
Catalytic activity
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Degradation
Heterostructures
Light irradiation
Morphology
Photocatalysis
Physical Chemistry
Rhodamine
Titanium dioxide
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Summary:The BiOI/TiO 2 heterostructures with microsphere morphology were successfully synthesized via a solvent-thermal method. The photocatalytic performance of BiOI/TiO 2 heterostructures was investigated via the degradation of Rhodamine B (RhB). The results indicate that the BiOI/TiO 2 heterostructures exhibited excellent photocatalytic performance with a maximum RhB degradation rate of 91% after 2 h of visible light irradiation, and the RhB molecules were mainly degraded by the holes and superoxide radicals. The enhanced photocatalytic performance of the heterostructures was mainly ascribed to its large specific surface areas and the reduced recombination rate of the photo-generated electron–hole pairs, which caused by the introduction of TiO 2 .
ISSN:1380-2224
1573-4854
DOI:10.1007/s10934-018-0594-3