High photodegradation efficiency of Rhodamine B catalyzed by bismuth silicate nanoparticles
Bismuth silicate Bi2SiO5 (BSO) nanoparticles were synthesized through a hydrothermal reaction followed by heat treatment. Kinds of characteristic methods were employed to study the phase, morphology and photophysical properties of BSO. The as-prepared BSO exhibited high photocatalytic activity and g...
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Published in | Catalysis communications Vol. 39; pp. 65 - 69 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
05.09.2013
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Subjects | |
Online Access | Get full text |
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Summary: | Bismuth silicate Bi2SiO5 (BSO) nanoparticles were synthesized through a hydrothermal reaction followed by heat treatment. Kinds of characteristic methods were employed to study the phase, morphology and photophysical properties of BSO. The as-prepared BSO exhibited high photocatalytic activity and good photodegradation repeatability in the decomposition of Rhodamine B (RhB) dyes under simulated sunlight irradiation. The experimental results by using different scavengers demonstrate that the photogenerated h+ and e− radicals play an interactional role in the degradation of RhB dyes. BSO nanocrystals could be a promising photocatalysis in water purification industry.
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•Single crystalline Bi2SiO5 nanoparticles were synthesized by a hydrothermal reaction followed by heat treatment.•The as-prepared Bi2SiO5 nanoparticles exhibited high efficiency in the photodegradation of Rhodamine B.•Photogenerated electrons and holes are activated from O 2p to Bi 6p during photoactivation process.•Photogenerated electrons and holes have played an interactional role in the photodegradation of RhB dyes. |
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ISSN: | 1566-7367 1873-3905 |
DOI: | 10.1016/j.catcom.2013.04.029 |