Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Qaraah, Fahim A., Mahyoub, Samah A., Hezam, Abdo, Zhang, Wei, Xiu, Guangli, Munyaneza, Janvier, Wu, Chengzi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
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
_version_ 1784697700152770560
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
work_keys_str_mv AT qaraahfahima facilesynthesisofflowerlikehierarchicalndopednb2o5cnanostructureswithefficientphotocatalyticactivityundervisiblelight
AT mahyoubsamaha facilesynthesisofflowerlikehierarchicalndopednb2o5cnanostructureswithefficientphotocatalyticactivityundervisiblelight
AT hezamabdo facilesynthesisofflowerlikehierarchicalndopednb2o5cnanostructureswithefficientphotocatalyticactivityundervisiblelight
AT zhangwei facilesynthesisofflowerlikehierarchicalndopednb2o5cnanostructureswithefficientphotocatalyticactivityundervisiblelight
AT xiuguangli facilesynthesisofflowerlikehierarchicalndopednb2o5cnanostructureswithefficientphotocatalyticactivityundervisiblelight
AT munyanezajanvier facilesynthesisofflowerlikehierarchicalndopednb2o5cnanostructureswithefficientphotocatalyticactivityundervisiblelight
AT wuchengzi facilesynthesisofflowerlikehierarchicalndopednb2o5cnanostructureswithefficientphotocatalyticactivityundervisiblelight