Synthesis of h- and α -MoO3 by refluxing and calcination combination: Phase and morphology transformation, photocatalysis, and photosensitization

Hexagonal molybdenum oxide (h-MoO3) nano- and microrods were successfully synthesized by refluxing of (NH4)6Mo7O24·4H2O solutions with the pH 1 at 90°C for 1, 3, 5, and 7 h and were further transformed into orthorhombic molybdenum oxide (α-MoO3) microplates by calcination at 450°C for 6 h. These sel...

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Main Authors:	Pannipa Wongkrua, Titipun Thongtem, Somchai Thongtem
Format:	Journal
Published:	2018
Subjects:	Materials Science
Online Access:	https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84883179373&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/52668
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Institution:	Chiang Mai University

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spelling	th-cmuir.6653943832-526682018-09-04T09:29:32Z Synthesis of h- and α -MoO3 by refluxing and calcination combination: Phase and morphology transformation, photocatalysis, and photosensitization Pannipa Wongkrua Titipun Thongtem Somchai Thongtem Materials Science Hexagonal molybdenum oxide (h-MoO3) nano- and microrods were successfully synthesized by refluxing of (NH4)6Mo7O24·4H2O solutions with the pH 1 at 90°C for 1, 3, 5, and 7 h and were further transformed into orthorhombic molybdenum oxide (α-MoO3) microplates by calcination at 450°C for 6 h. These selected products were used to determine the degradation of methylene blue dye under 35 W xenon lamp for 0-180 min, due to the photocatalysis and photosensitization processes. In this research, catalytic activity of the metastable h-MoO3has higher efficiency than that of the thermodynamically stable α-MoO3. Their phase and morphology transformation was also explained according to the experimental results. © 2013 Pannipa Wongkrua et al. 2018-09-04T09:29:32Z 2018-09-04T09:29:32Z 2013-09-03 Journal 16874129 16874110 2-s2.0-84883179373 10.1155/2013/702679 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84883179373&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/52668
institution	Chiang Mai University
building	Chiang Mai University Library
country	Thailand
collection	CMU Intellectual Repository
topic	Materials Science
spellingShingle	Materials Science Pannipa Wongkrua Titipun Thongtem Somchai Thongtem Synthesis of h- and α -MoO3 by refluxing and calcination combination: Phase and morphology transformation, photocatalysis, and photosensitization
description	Hexagonal molybdenum oxide (h-MoO3) nano- and microrods were successfully synthesized by refluxing of (NH4)6Mo7O24·4H2O solutions with the pH 1 at 90°C for 1, 3, 5, and 7 h and were further transformed into orthorhombic molybdenum oxide (α-MoO3) microplates by calcination at 450°C for 6 h. These selected products were used to determine the degradation of methylene blue dye under 35 W xenon lamp for 0-180 min, due to the photocatalysis and photosensitization processes. In this research, catalytic activity of the metastable h-MoO3has higher efficiency than that of the thermodynamically stable α-MoO3. Their phase and morphology transformation was also explained according to the experimental results. © 2013 Pannipa Wongkrua et al.
format	Journal
author	Pannipa Wongkrua Titipun Thongtem Somchai Thongtem
author_facet	Pannipa Wongkrua Titipun Thongtem Somchai Thongtem
author_sort	Pannipa Wongkrua
title	Synthesis of h- and α -MoO3 by refluxing and calcination combination: Phase and morphology transformation, photocatalysis, and photosensitization
title_short	Synthesis of h- and α -MoO3 by refluxing and calcination combination: Phase and morphology transformation, photocatalysis, and photosensitization
title_full	Synthesis of h- and α -MoO3 by refluxing and calcination combination: Phase and morphology transformation, photocatalysis, and photosensitization
title_fullStr	Synthesis of h- and α -MoO3 by refluxing and calcination combination: Phase and morphology transformation, photocatalysis, and photosensitization
title_full_unstemmed	Synthesis of h- and α -MoO3 by refluxing and calcination combination: Phase and morphology transformation, photocatalysis, and photosensitization
title_sort	synthesis of h- and α -moo3 by refluxing and calcination combination: phase and morphology transformation, photocatalysis, and photosensitization
publishDate	2018
url	https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84883179373&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/52668
_version_	1681423993169510400

Synthesis of h- and α -MoO3 by refluxing and calcination combination: Phase and morphology transformation, photocatalysis, and photosensitization

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