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A novel p–n heterostructured photocatalyst for the efficient photocatalytic degradation of different kinds of organic compounds under irradiation of both ultraviolet and visible light.
- Source :
- Dalton Transactions: An International Journal of Inorganic Chemistry; 9/21/2016, Vol. 45 Issue 35, p13907-13916, 10p
- Publication Year :
- 2016
-
Abstract
- In this study, BiOBr–titanium phosphate (BiOBr/TP) plate-on-plate composites with p–n heterojunctions were synthesized using a simple, feasible two-step method. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX) and UV-vis diffuse reflectance spectrometry (DRS) were used to evaluate the structure, morphology and optical properties of the composites. Rhodamine B (RhB) and ciprofloxacin (CIP) were chosen as model pollutants to evaluate the photocatalytic activity of the synthesized samples under irradiation of both ultraviolet and visible light. The BiOBr/TP composites exhibited much higher photocatalytic activity for the degradation of both pollutants than pure TP. The enhanced photocatalytic performance can be ascribed to the formed p–n heterojunctions between p-type BiOBr and n-type TP, which efficiently reduced the recombination rate of photo-excited electrons and holes. Moreover, a possible photocatalytic mechanism of organic pollutant degradation by the obtained samples was presented in detail. [ABSTRACT FROM AUTHOR]
- Subjects :
- ORGANIC synthesis
PHOTOCATALYSTS
RHODAMINE B
CIPROFLOXACIN
PHOTOCATALYSIS
Subjects
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 45
- Issue :
- 35
- Database :
- Complementary Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 117776344
- Full Text :
- https://doi.org/10.1039/c6dt02582j