Corn-like, recoverable γ-Fe(2)O(3)@SiO(2)@TiO(2) photocatalyst induced by magnetic dipole interactions

Corn-like, γ-Fe(2)O(3)@SiO(2)@TiO(2) core/shell heterostructures were synthesized by a modified solvothermal reduction combined with a sol-gel method. SiO(2) shells were first deposited on monodisperse Fe(3)O(4) microspheres by a sol-gel method. Fe(3)O(4)@SiO(2)@TiO(2) corn-like heterostructures wer...

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Autores principales: Wang, Fang, Li, Manhong, Yu, Lifang, Sun, Fan, Wang, Zhuliang, Zhang, Lifang, Zeng, Hao, Xu, Xiaohong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
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Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5537353/
https://www.ncbi.nlm.nih.gov/pubmed/28761085
http://dx.doi.org/10.1038/s41598-017-07417-z
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author Wang, Fang
Li, Manhong
Yu, Lifang
Sun, Fan
Wang, Zhuliang
Zhang, Lifang
Zeng, Hao
Xu, Xiaohong
author_facet Wang, Fang
Li, Manhong
Yu, Lifang
Sun, Fan
Wang, Zhuliang
Zhang, Lifang
Zeng, Hao
Xu, Xiaohong
author_sort Wang, Fang
collection PubMed
description Corn-like, γ-Fe(2)O(3)@SiO(2)@TiO(2) core/shell heterostructures were synthesized by a modified solvothermal reduction combined with a sol-gel method. SiO(2) shells were first deposited on monodisperse Fe(3)O(4) microspheres by a sol-gel method. Fe(3)O(4)@SiO(2)@TiO(2) corn-like heterostructures were then obtained by sequential TiO(2) coating, during which the magnetic dipolar interactions induced the anisotropic self-assembly process. After annealing at 350 °C, the crystalized TiO(2) enhanced photocatalytic activity, while Fe(3)O(4) was converted to γ-Fe(2)O(3). The corn-like γ-Fe(2)O(3)@SiO(2)@TiO(2) photocatalyst can be recycled and reused by magnet extraction. Despite the photocatalytic activity decreased with each cycle, it can be completely recovered by moderate heating at 200 °C.
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spelling pubmed-55373532017-08-03 Corn-like, recoverable γ-Fe(2)O(3)@SiO(2)@TiO(2) photocatalyst induced by magnetic dipole interactions Wang, Fang Li, Manhong Yu, Lifang Sun, Fan Wang, Zhuliang Zhang, Lifang Zeng, Hao Xu, Xiaohong Sci Rep Article Corn-like, γ-Fe(2)O(3)@SiO(2)@TiO(2) core/shell heterostructures were synthesized by a modified solvothermal reduction combined with a sol-gel method. SiO(2) shells were first deposited on monodisperse Fe(3)O(4) microspheres by a sol-gel method. Fe(3)O(4)@SiO(2)@TiO(2) corn-like heterostructures were then obtained by sequential TiO(2) coating, during which the magnetic dipolar interactions induced the anisotropic self-assembly process. After annealing at 350 °C, the crystalized TiO(2) enhanced photocatalytic activity, while Fe(3)O(4) was converted to γ-Fe(2)O(3). The corn-like γ-Fe(2)O(3)@SiO(2)@TiO(2) photocatalyst can be recycled and reused by magnet extraction. Despite the photocatalytic activity decreased with each cycle, it can be completely recovered by moderate heating at 200 °C. Nature Publishing Group UK 2017-07-31 /pmc/articles/PMC5537353/ /pubmed/28761085 http://dx.doi.org/10.1038/s41598-017-07417-z 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
Wang, Fang
Li, Manhong
Yu, Lifang
Sun, Fan
Wang, Zhuliang
Zhang, Lifang
Zeng, Hao
Xu, Xiaohong
Corn-like, recoverable γ-Fe(2)O(3)@SiO(2)@TiO(2) photocatalyst induced by magnetic dipole interactions
title Corn-like, recoverable γ-Fe(2)O(3)@SiO(2)@TiO(2) photocatalyst induced by magnetic dipole interactions
title_full Corn-like, recoverable γ-Fe(2)O(3)@SiO(2)@TiO(2) photocatalyst induced by magnetic dipole interactions
title_fullStr Corn-like, recoverable γ-Fe(2)O(3)@SiO(2)@TiO(2) photocatalyst induced by magnetic dipole interactions
title_full_unstemmed Corn-like, recoverable γ-Fe(2)O(3)@SiO(2)@TiO(2) photocatalyst induced by magnetic dipole interactions
title_short Corn-like, recoverable γ-Fe(2)O(3)@SiO(2)@TiO(2) photocatalyst induced by magnetic dipole interactions
title_sort corn-like, recoverable γ-fe(2)o(3)@sio(2)@tio(2) photocatalyst induced by magnetic dipole interactions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5537353/
https://www.ncbi.nlm.nih.gov/pubmed/28761085
http://dx.doi.org/10.1038/s41598-017-07417-z
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