Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO3 Nanoplates

Abstract Porous monoliths of MoO3 nanoplates were synthesized from ammonium molybdate (AHM) by freeze-casting and subsequent thermal treatment from 300 to 600 °C. Pure orthorhombic MoO3 phase was obtained at thermal treatment temperature of 400 °C and above. MoO3 monoliths thermally treated at 400 °...

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Autores principales:	Yang Liu, Peizhong Feng, Zhang Wang, Xinyang Jiao, Farid Akhtar
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d2eef5df05b443d68d17dcad62da532d
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spelling	oai:doaj.org-article:d2eef5df05b443d68d17dcad62da532d2021-12-02T12:32:16ZNovel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO3 Nanoplates10.1038/s41598-017-02025-32045-2322https://doaj.org/article/d2eef5df05b443d68d17dcad62da532d2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02025-3https://doaj.org/toc/2045-2322Abstract Porous monoliths of MoO3 nanoplates were synthesized from ammonium molybdate (AHM) by freeze-casting and subsequent thermal treatment from 300 to 600 °C. Pure orthorhombic MoO3 phase was obtained at thermal treatment temperature of 400 °C and above. MoO3 monoliths thermally treated at 400 °C displayed bimodal pore structure, including large pore channels replicating the ice crystals and small pores from MoO3 sheets stacking. Transmission electron microscopy (TEM) images revealed that the average thicknesses of MoO3 sheet were 50 and 300 nm in porous monoliths thermally treated at 400 °C. The photocatalytic performance of MoO3 was evaluated through degradation of methylene blue (MB) under visible light radiation and MoO3 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. MoO3 photocatalyst displayed promising cyclic performance, and the decolorization efficiency of MB solution was 98.1% after four cycles.Yang LiuPeizhong FengZhang WangXinyang JiaoFarid AkhtarNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yang Liu Peizhong Feng Zhang Wang Xinyang Jiao Farid Akhtar Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO3 Nanoplates
description	Abstract Porous monoliths of MoO3 nanoplates were synthesized from ammonium molybdate (AHM) by freeze-casting and subsequent thermal treatment from 300 to 600 °C. Pure orthorhombic MoO3 phase was obtained at thermal treatment temperature of 400 °C and above. MoO3 monoliths thermally treated at 400 °C displayed bimodal pore structure, including large pore channels replicating the ice crystals and small pores from MoO3 sheets stacking. Transmission electron microscopy (TEM) images revealed that the average thicknesses of MoO3 sheet were 50 and 300 nm in porous monoliths thermally treated at 400 °C. The photocatalytic performance of MoO3 was evaluated through degradation of methylene blue (MB) under visible light radiation and MoO3 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. MoO3 photocatalyst displayed promising cyclic performance, and the decolorization efficiency of MB solution was 98.1% after four cycles.
format	article
author	Yang Liu Peizhong Feng Zhang Wang Xinyang Jiao Farid Akhtar
author_facet	Yang Liu Peizhong Feng Zhang Wang Xinyang Jiao Farid Akhtar
author_sort	Yang Liu
title	Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO3 Nanoplates
title_short	Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO3 Nanoplates
title_full	Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO3 Nanoplates
title_fullStr	Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO3 Nanoplates
title_full_unstemmed	Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO3 Nanoplates
title_sort	novel fabrication and enhanced photocatalytic mb degradation of hierarchical porous monoliths of moo3 nanoplates
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d2eef5df05b443d68d17dcad62da532d
work_keys_str_mv	AT yangliu novelfabricationandenhancedphotocatalyticmbdegradationofhierarchicalporousmonolithsofmoo3nanoplates AT peizhongfeng novelfabricationandenhancedphotocatalyticmbdegradationofhierarchicalporousmonolithsofmoo3nanoplates AT zhangwang novelfabricationandenhancedphotocatalyticmbdegradationofhierarchicalporousmonolithsofmoo3nanoplates AT xinyangjiao novelfabricationandenhancedphotocatalyticmbdegradationofhierarchicalporousmonolithsofmoo3nanoplates AT faridakhtar novelfabricationandenhancedphotocatalyticmbdegradationofhierarchicalporousmonolithsofmoo3nanoplates
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Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO3 Nanoplates

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