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Short-Time Hydrothermal Synthesis of CuBi(2)O(4) Nanocolumn Arrays for Efficient Visible-Light Photocatalysis

In this article, a short-time hydrothermal method is developed to prepare CuBi(2)O(4) nanocolumn arrays. By using Bi(NO(3))(3)·5H(2)O in acetic acid and Cu(NO(3))(2)·3H(2)O in ethanol as precursor solutions, tetragonal CuBi(2)O(4) with good visible light absorption can be fabricated within 0.5 h at...

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Autores principales: Wang, Yi, Cai, Fang, Guo, Pengran, Lei, Yongqian, Xi, Qiaoyue, Wang, Fuxian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6780588/
https://www.ncbi.nlm.nih.gov/pubmed/31491878
http://dx.doi.org/10.3390/nano9091257
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author Wang, Yi
Cai, Fang
Guo, Pengran
Lei, Yongqian
Xi, Qiaoyue
Wang, Fuxian
author_facet Wang, Yi
Cai, Fang
Guo, Pengran
Lei, Yongqian
Xi, Qiaoyue
Wang, Fuxian
author_sort Wang, Yi
collection PubMed
description In this article, a short-time hydrothermal method is developed to prepare CuBi(2)O(4) nanocolumn arrays. By using Bi(NO(3))(3)·5H(2)O in acetic acid and Cu(NO(3))(2)·3H(2)O in ethanol as precursor solutions, tetragonal CuBi(2)O(4) with good visible light absorption can be fabricated within 0.5 h at 120 °C. Tetragonal structured CuBi(2)O(4) can be formed after 15 min hydrothermal treatment, however it possesses poor visible light absorption and low photocatalytic activity. Extending the hydrothermal treatment duration to 0.5 h results in a significant improvement invisible light absorption of the tetragonal CuBi(2)O(4). The CuBi(2)O(4) obtained through 0.5 h hydrothermal synthesis shows a band gap of 1.75 eV and exhibits the highest photocatalytic performance among the CuBi(2)O(4) prepared with various hydrothermal time. The removal rate of methylene blue by the 0.5 h CuBi(2)O(4) reaches 91% under visible light irradiation for 0.5 h. This study proposes a novel strategy to prepare photoactive CuBi(2)O(4) nanocolumn arrays within 0.5 h at a moderate temperature of 120 °C. The hydrothermal method provides a facile strategy for the fast synthesis of metal-oxide-based photocatalysts at mild reaction conditions.
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spelling pubmed-67805882019-10-30 Short-Time Hydrothermal Synthesis of CuBi(2)O(4) Nanocolumn Arrays for Efficient Visible-Light Photocatalysis Wang, Yi Cai, Fang Guo, Pengran Lei, Yongqian Xi, Qiaoyue Wang, Fuxian Nanomaterials (Basel) Article In this article, a short-time hydrothermal method is developed to prepare CuBi(2)O(4) nanocolumn arrays. By using Bi(NO(3))(3)·5H(2)O in acetic acid and Cu(NO(3))(2)·3H(2)O in ethanol as precursor solutions, tetragonal CuBi(2)O(4) with good visible light absorption can be fabricated within 0.5 h at 120 °C. Tetragonal structured CuBi(2)O(4) can be formed after 15 min hydrothermal treatment, however it possesses poor visible light absorption and low photocatalytic activity. Extending the hydrothermal treatment duration to 0.5 h results in a significant improvement invisible light absorption of the tetragonal CuBi(2)O(4). The CuBi(2)O(4) obtained through 0.5 h hydrothermal synthesis shows a band gap of 1.75 eV and exhibits the highest photocatalytic performance among the CuBi(2)O(4) prepared with various hydrothermal time. The removal rate of methylene blue by the 0.5 h CuBi(2)O(4) reaches 91% under visible light irradiation for 0.5 h. This study proposes a novel strategy to prepare photoactive CuBi(2)O(4) nanocolumn arrays within 0.5 h at a moderate temperature of 120 °C. The hydrothermal method provides a facile strategy for the fast synthesis of metal-oxide-based photocatalysts at mild reaction conditions. MDPI 2019-09-05 /pmc/articles/PMC6780588/ /pubmed/31491878 http://dx.doi.org/10.3390/nano9091257 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Yi
Cai, Fang
Guo, Pengran
Lei, Yongqian
Xi, Qiaoyue
Wang, Fuxian
Short-Time Hydrothermal Synthesis of CuBi(2)O(4) Nanocolumn Arrays for Efficient Visible-Light Photocatalysis
title Short-Time Hydrothermal Synthesis of CuBi(2)O(4) Nanocolumn Arrays for Efficient Visible-Light Photocatalysis
title_full Short-Time Hydrothermal Synthesis of CuBi(2)O(4) Nanocolumn Arrays for Efficient Visible-Light Photocatalysis
title_fullStr Short-Time Hydrothermal Synthesis of CuBi(2)O(4) Nanocolumn Arrays for Efficient Visible-Light Photocatalysis
title_full_unstemmed Short-Time Hydrothermal Synthesis of CuBi(2)O(4) Nanocolumn Arrays for Efficient Visible-Light Photocatalysis
title_short Short-Time Hydrothermal Synthesis of CuBi(2)O(4) Nanocolumn Arrays for Efficient Visible-Light Photocatalysis
title_sort short-time hydrothermal synthesis of cubi(2)o(4) nanocolumn arrays for efficient visible-light photocatalysis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6780588/
https://www.ncbi.nlm.nih.gov/pubmed/31491878
http://dx.doi.org/10.3390/nano9091257
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