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Facile synthesis of flower-like hierarchical N-doped Nb(2)O(5)/C nanostructures with efficient photocatalytic activity under visible light
Significant endeavors have been devoted in the past few years to establish efficient visible light-activated photocatalysts. Herein, we successfully synthesized a flower-like hierarchical nitrogen-doped and carbon-sensitized Nb(2)O(5) (NBO) nanostructure (denoted N-NBO/C). The as-prepared N-NBO/C po...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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The Royal Society of Chemistry
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056605/ https://www.ncbi.nlm.nih.gov/pubmed/35516491 http://dx.doi.org/10.1039/d0ra02868a |
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author | Qaraah, Fahim A. Mahyoub, Samah A. Hezam, Abdo Zhang, Wei Xiu, Guangli Munyaneza, Janvier Wu, Chengzi |
author_facet | Qaraah, Fahim A. Mahyoub, Samah A. Hezam, Abdo Zhang, Wei Xiu, Guangli Munyaneza, Janvier Wu, Chengzi |
author_sort | Qaraah, Fahim A. |
collection | PubMed |
description | Significant endeavors have been devoted in the past few years to establish efficient visible light-activated photocatalysts. Herein, we successfully synthesized a flower-like hierarchical nitrogen-doped and carbon-sensitized Nb(2)O(5) (NBO) nanostructure (denoted N-NBO/C). The as-prepared N-NBO/C possessed a specific surface area of 260.37 m(2) g(−1) and single wire diameter of less than 10 nm. The effect of reaction parameters such as hydrothermal reaction time, temperature and concentration of hexamethylenetetramine (Hmta) on the morphology of NBO was systematically investigated to elucidate the growth mechanism. The carbon on the surface and the nitrogen in the framework of NBO are beneficial for light harvesting, visible light absorption, formation of oxygen vacancies, and electron–hole separation. The photocatalytic performance of the as-fabricated N-NBO/C nanostructures was estimated via the photodegradation of 30 mg L(−1) RhB, where greater than 98% of RhB was decomposed within 30 min upon visible-light radiation. Hence, the obtained N-NBO/C nanostructure exhibits much higher photocatalytic activity for the decomposition of RhB upon visible light irradiation than that of pure niobium oxide (NBO), nitrogen-doped titanium oxide (N-TIO), and nitrogen-doped niobium oxide (N-NBO). This work supplies a versatile route for the synthesis of nitrogen-doped and carbon-sensitized metal-oxide nanostructures for possible utilization in solar energy transformation and environmental remediation. |
format | Online Article Text |
id | pubmed-9056605 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90566052022-05-04 Facile synthesis of flower-like hierarchical N-doped Nb(2)O(5)/C nanostructures with efficient photocatalytic activity under visible light Qaraah, Fahim A. Mahyoub, Samah A. Hezam, Abdo Zhang, Wei Xiu, Guangli Munyaneza, Janvier Wu, Chengzi RSC Adv Chemistry Significant endeavors have been devoted in the past few years to establish efficient visible light-activated photocatalysts. Herein, we successfully synthesized a flower-like hierarchical nitrogen-doped and carbon-sensitized Nb(2)O(5) (NBO) nanostructure (denoted N-NBO/C). The as-prepared N-NBO/C possessed a specific surface area of 260.37 m(2) g(−1) and single wire diameter of less than 10 nm. The effect of reaction parameters such as hydrothermal reaction time, temperature and concentration of hexamethylenetetramine (Hmta) on the morphology of NBO was systematically investigated to elucidate the growth mechanism. The carbon on the surface and the nitrogen in the framework of NBO are beneficial for light harvesting, visible light absorption, formation of oxygen vacancies, and electron–hole separation. The photocatalytic performance of the as-fabricated N-NBO/C nanostructures was estimated via the photodegradation of 30 mg L(−1) RhB, where greater than 98% of RhB was decomposed within 30 min upon visible-light radiation. Hence, the obtained N-NBO/C nanostructure exhibits much higher photocatalytic activity for the decomposition of RhB upon visible light irradiation than that of pure niobium oxide (NBO), nitrogen-doped titanium oxide (N-TIO), and nitrogen-doped niobium oxide (N-NBO). This work supplies a versatile route for the synthesis of nitrogen-doped and carbon-sensitized metal-oxide nanostructures for possible utilization in solar energy transformation and environmental remediation. The Royal Society of Chemistry 2020-09-01 /pmc/articles/PMC9056605/ /pubmed/35516491 http://dx.doi.org/10.1039/d0ra02868a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Qaraah, Fahim A. Mahyoub, Samah A. Hezam, Abdo Zhang, Wei Xiu, Guangli Munyaneza, Janvier Wu, Chengzi Facile synthesis of flower-like hierarchical N-doped Nb(2)O(5)/C nanostructures with efficient photocatalytic activity under visible light |
title | Facile synthesis of flower-like hierarchical N-doped Nb(2)O(5)/C nanostructures with efficient photocatalytic activity under visible light |
title_full | Facile synthesis of flower-like hierarchical N-doped Nb(2)O(5)/C nanostructures with efficient photocatalytic activity under visible light |
title_fullStr | Facile synthesis of flower-like hierarchical N-doped Nb(2)O(5)/C nanostructures with efficient photocatalytic activity under visible light |
title_full_unstemmed | Facile synthesis of flower-like hierarchical N-doped Nb(2)O(5)/C nanostructures with efficient photocatalytic activity under visible light |
title_short | Facile synthesis of flower-like hierarchical N-doped Nb(2)O(5)/C nanostructures with efficient photocatalytic activity under visible light |
title_sort | facile synthesis of flower-like hierarchical n-doped nb(2)o(5)/c nanostructures with efficient photocatalytic activity under visible light |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056605/ https://www.ncbi.nlm.nih.gov/pubmed/35516491 http://dx.doi.org/10.1039/d0ra02868a |
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