Effect of iron loading on the photocatalytic performance of Bi2WO6 photocatalyst
© 2014 Elsevier Ltd. All rights reserved. Pure Bi2WO6 and nominal 0.1-2.0 mol% Fe-loaded Bi2WO6 samples were synthesized by hydrothermal method. All samples were characterized in order to obtain the correlation between structure and photocatalytic properties by X-ray diffraction, UV-vis diffuse refl...
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| Main Authors: | , , , , |
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| Format: | Article |
| Published: |
Academic Press Inc.
2015
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| Subjects: | |
| Online Access: | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84910136329&origin=inward http://cmuir.cmu.ac.th/handle/6653943832/38801 |
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| Institution: | Chiang Mai University |
| Summary: | © 2014 Elsevier Ltd. All rights reserved. Pure Bi2WO6 and nominal 0.1-2.0 mol% Fe-loaded Bi2WO6 samples were synthesized by hydrothermal method. All samples were characterized in order to obtain the correlation between structure and photocatalytic properties by X-ray diffraction, UV-vis diffuse reflectance spectrophotometry, Brunauer, Emmett and Teller-specific surface area, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, photoluminescence spectroscopy and inductively coupled plasma-optical emission spectroscopy. Photocatalytic activities of all photocatalyst samples were examined by studying the degradation of methylene blue under visible light irradiation. The 0.5 mol% Fe-loaded Bi2WO6 had the best activity in photodegradation of MB in aqueous solution under visible light irradiation. The high performance of Fe-loaded Bi2WO6 could be attributed to the fact that the Fe ions could act as electron traps promoting the electron-hole separation then enhancing the photocatalytic reaction. |
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