Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 637, Issue -, Pages 127-132Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2015.02.201
Keywords
PPy/Bi2O2CO3 composites; Photocatalysis; Photodegradation; UV light
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Funding
- National Natural Science Foundation of China [51262028]
- Fundamental Research Funds for the Gansu Universities
- Gansu Provincial Natural Science Foundation of China [1107RJZA194]
- Pre-research Foundation of Inchuan Group Co., Ltd
- Young Teacher Research Foundation of Northwest Normal University [NWNU-LKQN-11-17]
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Photocatalyst Bi2O2CO3 modified by polypyrrole (PPy) was synthesized via a facile hydrothermal method. As-prepared PPy/Bi2O2CO3 composites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and UV-vis diffuse reflectance spectroscopy (DRS). Presence of PPy did not affect the crystal structure, but exerted great influence on the photocatalytic activity of Bi2O2CO3 and enhanced absorption band of pure Bi2O2CO3. The photocatalytic activities of the PPy/Bi2O2CO3 samples were determined by photocatalytic degradation of Rhodamine-B (RhB) under ultra violet (UV) irradiation and 0.75 wt.% PPy/Bi2O2CO3 composite showed the highest photocatalytic activity. The enhanced photocatalytic performance could be attributed to the synergistic effect of PPy and Bi2O2CO3. A possible photocatalytic mechanism of the PPy/Bi2O2CO3 photocatalysts was proposed in order to guide the further improvement of its photocatalytic performance. (C) 2015 Elsevier B.V. All rights reserved.
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