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

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

Hexagonal molybdenum oxide (h-MoO 3 ) nano- and microrods were successfully synthesized by refluxing of (NH 4 ) 6 Mo 7 O 24 ·4H 2 O solutions with the pH 1 at 90°C for 1, 3, 5, and 7 h and were further transformed into orthorhombic molybdenum oxide (α-MoO 3 ) microplates by calcination at 450°C for...

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Main Authors: Pannipa Wongkrua, Titipun Thongtem, Somchai Thongtem
Format: Journal
Published: 2018
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84883179373&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/47652
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-476522018-04-25T08:42:23Z Synthesis of h- and α -MoO3 by refluxing and calcination combination: Phase and morphology transformation, photocatalysis, and photosensitization Pannipa Wongkrua Titipun Thongtem Somchai Thongtem Hexagonal molybdenum oxide (h-MoO 3 ) nano- and microrods were successfully synthesized by refluxing of (NH 4 ) 6 Mo 7 O 24 ·4H 2 O solutions with the pH 1 at 90°C for 1, 3, 5, and 7 h and were further transformed into orthorhombic molybdenum oxide (α-MoO 3 ) 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-MoO 3 has higher efficiency than that of the thermodynamically stable α-MoO 3 . Their phase and morphology transformation was also explained according to the experimental results. © 2013 Pannipa Wongkrua et al. 2018-04-25T08:42:23Z 2018-04-25T08:42:23Z 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/6653943832/47652
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description Hexagonal molybdenum oxide (h-MoO 3 ) nano- and microrods were successfully synthesized by refluxing of (NH 4 ) 6 Mo 7 O 24 ·4H 2 O solutions with the pH 1 at 90°C for 1, 3, 5, and 7 h and were further transformed into orthorhombic molybdenum oxide (α-MoO 3 ) 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-MoO 3 has higher efficiency than that of the thermodynamically stable α-MoO 3 . 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
spellingShingle Pannipa Wongkrua
Titipun Thongtem
Somchai Thongtem
Synthesis of h- and α -MoO3 by refluxing and calcination combination: Phase and morphology transformation, photocatalysis, and photosensitization
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/6653943832/47652
_version_ 1681423101542268928

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