The effect of iron doping on the photocatalytic activity of a Bi<inf>2</inf>WO<inf>6</inf>-BiVO<inf>4</inf>composite

© 2016 The Royal Society of Chemistry. Visible-light-driven Fe-doped Bi2WO6-BiVO4composites have been synthesized via a hydrothermal method with varying nominal iron contents in the range of 0.5-5.0 mol%. The physicochemical properties of the obtained materials were characterized by X-ray diffractio...

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Main Authors: Saranyoo Chaiwichian, Khatcharin Wetchakun, Sukon Phanichphant, Wiyong Kangwansupamonkon, Natda Wetchakun
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/55397
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-553972018-09-05T02:57:00Z The effect of iron doping on the photocatalytic activity of a Bi<inf>2</inf>WO<inf>6</inf>-BiVO<inf>4</inf>composite Saranyoo Chaiwichian Khatcharin Wetchakun Sukon Phanichphant Wiyong Kangwansupamonkon Natda Wetchakun Chemical Engineering Chemistry © 2016 The Royal Society of Chemistry. Visible-light-driven Fe-doped Bi2WO6-BiVO4composites have been synthesized via a hydrothermal method with varying nominal iron contents in the range of 0.5-5.0 mol%. The physicochemical properties of the obtained materials were characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET)-specific surface area, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), inductively coupled plasma-optical emission spectroscopy (ICP-OES), UV-vis diffuse reflectance spectroscopy (UV-vis DRS), and photoluminescence (PL) techniques. Methylene blue (MB) as probe pollutant was adopted to investigate the photocatalytic activity of all samples under visible light irradiation. The Fe-doped Bi2WO6-BiVO4composites showed an enhanced photocatalytic activity for the degradation of MB under visible light, which was attributed to the iron ions acting as good electron and hole traps for facilitating the separation of charge carriers. Simultaneously, the high stability of the sample was also investigated by five successive photodegradation tests of MB under visible light. The relationship between the photocatalytic activities and the structures of Fe-doped Bi2WO6-BiVO4composites was discussed. The possible photocatalytic mechanism of the composites was proposed to guide the further improvement of their photocatalytic performance. 2018-09-05T02:55:13Z 2018-09-05T02:55:13Z 2016-01-01 Journal 20462069 2-s2.0-84973659422 10.1039/c6ra07811g https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84973659422&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/55397
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Chemical Engineering
Chemistry
spellingShingle Chemical Engineering
Chemistry
Saranyoo Chaiwichian
Khatcharin Wetchakun
Sukon Phanichphant
Wiyong Kangwansupamonkon
Natda Wetchakun
The effect of iron doping on the photocatalytic activity of a Bi<inf>2</inf>WO<inf>6</inf>-BiVO<inf>4</inf>composite
description © 2016 The Royal Society of Chemistry. Visible-light-driven Fe-doped Bi2WO6-BiVO4composites have been synthesized via a hydrothermal method with varying nominal iron contents in the range of 0.5-5.0 mol%. The physicochemical properties of the obtained materials were characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET)-specific surface area, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), inductively coupled plasma-optical emission spectroscopy (ICP-OES), UV-vis diffuse reflectance spectroscopy (UV-vis DRS), and photoluminescence (PL) techniques. Methylene blue (MB) as probe pollutant was adopted to investigate the photocatalytic activity of all samples under visible light irradiation. The Fe-doped Bi2WO6-BiVO4composites showed an enhanced photocatalytic activity for the degradation of MB under visible light, which was attributed to the iron ions acting as good electron and hole traps for facilitating the separation of charge carriers. Simultaneously, the high stability of the sample was also investigated by five successive photodegradation tests of MB under visible light. The relationship between the photocatalytic activities and the structures of Fe-doped Bi2WO6-BiVO4composites was discussed. The possible photocatalytic mechanism of the composites was proposed to guide the further improvement of their photocatalytic performance.
format Journal
author Saranyoo Chaiwichian
Khatcharin Wetchakun
Sukon Phanichphant
Wiyong Kangwansupamonkon
Natda Wetchakun
author_facet Saranyoo Chaiwichian
Khatcharin Wetchakun
Sukon Phanichphant
Wiyong Kangwansupamonkon
Natda Wetchakun
author_sort Saranyoo Chaiwichian
title The effect of iron doping on the photocatalytic activity of a Bi<inf>2</inf>WO<inf>6</inf>-BiVO<inf>4</inf>composite
title_short The effect of iron doping on the photocatalytic activity of a Bi<inf>2</inf>WO<inf>6</inf>-BiVO<inf>4</inf>composite
title_full The effect of iron doping on the photocatalytic activity of a Bi<inf>2</inf>WO<inf>6</inf>-BiVO<inf>4</inf>composite
title_fullStr The effect of iron doping on the photocatalytic activity of a Bi<inf>2</inf>WO<inf>6</inf>-BiVO<inf>4</inf>composite
title_full_unstemmed The effect of iron doping on the photocatalytic activity of a Bi<inf>2</inf>WO<inf>6</inf>-BiVO<inf>4</inf>composite
title_sort effect of iron doping on the photocatalytic activity of a bi<inf>2</inf>wo<inf>6</inf>-bivo<inf>4</inf>composite
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84973659422&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/55397
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