Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO(3) Nanoplates

Porous monoliths of MoO(3) nanoplates were synthesized from ammonium molybdate (AHM) by freeze-casting and subsequent thermal treatment from 300 to 600 °C. Pure orthorhombic MoO(3) phase was obtained at thermal treatment temperature of 400 °C and above. MoO(3) monoliths thermally treated at 400 °C d...

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Autores principales: Liu, Yang, Feng, Peizhong, Wang, Zhang, Jiao, Xinyang, Akhtar, Farid
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5432013/
https://www.ncbi.nlm.nih.gov/pubmed/28500347
http://dx.doi.org/10.1038/s41598-017-02025-3
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author Liu, Yang
Feng, Peizhong
Wang, Zhang
Jiao, Xinyang
Akhtar, Farid
author_facet Liu, Yang
Feng, Peizhong
Wang, Zhang
Jiao, Xinyang
Akhtar, Farid
author_sort Liu, Yang
collection PubMed
description Porous monoliths of MoO(3) nanoplates were synthesized from ammonium molybdate (AHM) by freeze-casting and subsequent thermal treatment from 300 to 600 °C. Pure orthorhombic MoO(3) phase was obtained at thermal treatment temperature of 400 °C and above. MoO(3) monoliths thermally treated at 400 °C displayed bimodal pore structure, including large pore channels replicating the ice crystals and small pores from MoO(3) sheets stacking. Transmission electron microscopy (TEM) images revealed that the average thicknesses of MoO(3) sheet were 50 and 300 nm in porous monoliths thermally treated at 400 °C. The photocatalytic performance of MoO(3) was evaluated through degradation of methylene blue (MB) under visible light radiation and MoO(3) synthesized at 400 °C exhibited strong adsorption performance and best photocatalytic activity for photodegradation of MB of 99.7% under visible illumination for 60 min. MoO(3) photocatalyst displayed promising cyclic performance, and the decolorization efficiency of MB solution was 98.1% after four cycles.
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spelling pubmed-54320132017-05-16 Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO(3) Nanoplates Liu, Yang Feng, Peizhong Wang, Zhang Jiao, Xinyang Akhtar, Farid Sci Rep Article Porous monoliths of MoO(3) nanoplates were synthesized from ammonium molybdate (AHM) by freeze-casting and subsequent thermal treatment from 300 to 600 °C. Pure orthorhombic MoO(3) phase was obtained at thermal treatment temperature of 400 °C and above. MoO(3) monoliths thermally treated at 400 °C displayed bimodal pore structure, including large pore channels replicating the ice crystals and small pores from MoO(3) sheets stacking. Transmission electron microscopy (TEM) images revealed that the average thicknesses of MoO(3) sheet were 50 and 300 nm in porous monoliths thermally treated at 400 °C. The photocatalytic performance of MoO(3) was evaluated through degradation of methylene blue (MB) under visible light radiation and MoO(3) synthesized at 400 °C exhibited strong adsorption performance and best photocatalytic activity for photodegradation of MB of 99.7% under visible illumination for 60 min. MoO(3) photocatalyst displayed promising cyclic performance, and the decolorization efficiency of MB solution was 98.1% after four cycles. Nature Publishing Group UK 2017-05-12 /pmc/articles/PMC5432013/ /pubmed/28500347 http://dx.doi.org/10.1038/s41598-017-02025-3 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Liu, Yang
Feng, Peizhong
Wang, Zhang
Jiao, Xinyang
Akhtar, Farid
Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO(3) Nanoplates
title Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO(3) Nanoplates
title_full Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO(3) Nanoplates
title_fullStr Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO(3) Nanoplates
title_full_unstemmed Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO(3) Nanoplates
title_short Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO(3) Nanoplates
title_sort novel fabrication and enhanced photocatalytic mb degradation of hierarchical porous monoliths of moo(3) nanoplates
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5432013/
https://www.ncbi.nlm.nih.gov/pubmed/28500347
http://dx.doi.org/10.1038/s41598-017-02025-3
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