Molybdenum impregnated g-C3N4 nanotubes as potentially active photocatalyst for renewable energy applications

Abstract Molybdenum (Mo) impregnated g-C3N4 (Mo-CN) nanotubes are fabricated via a thermal/hydrothermal process to augment photoelectrochemical properties during solar-driven water-splitting (SDWS) reactions. Graphitic-C3N4 is an attractive material for photocatalysis because of its suitable band en...

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Autores principales:	Naseer Iqbal, Adeel Afzal, Ibrahim Khan, Muhammad Shahzeb Khan, Ahsanulhaq Qurashi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a7cb171a9bc84670a09c9f281f923155
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spelling	oai:doaj.org-article:a7cb171a9bc84670a09c9f281f9231552021-12-02T17:08:44ZMolybdenum impregnated g-C3N4 nanotubes as potentially active photocatalyst for renewable energy applications10.1038/s41598-021-96490-62045-2322https://doaj.org/article/a7cb171a9bc84670a09c9f281f9231552021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96490-6https://doaj.org/toc/2045-2322Abstract Molybdenum (Mo) impregnated g-C3N4 (Mo-CN) nanotubes are fabricated via a thermal/hydrothermal process to augment photoelectrochemical properties during solar-driven water-splitting (SDWS) reactions. Graphitic-C3N4 is an attractive material for photocatalysis because of its suitable band energy, high thermal and chemical stability. The FE-SEM and HR-TEM comprehend the nanotube-like morphology of Mo-CN. The spectroscopic characterization revealed bandgap energy of 2.63 eV with high visible-light activity. The x-ray diffraction of pristine g-C3N4 and Mo-CN nanotubes discloses the formation of triazine-based nanocrystalline g-C3N4, which remains stable during hydrothermal impregnation of Mo. Furthermore, Mo-CN nanotubes possess high sp2-hybridized nitrogen content, and metallic/oxidized Mo nanoparticles (in a ratio of 1:2) are impregnated into g-C3N4. The XPS analysis confirms C, N, and Mo for known atomic and oxidation states in Mo-CN. Furthermore, high photocurrent efficiency (~ 5.5 mA/cm2) is observed from 5%-Mo-CN nanotubes. That displays efficient SDWS by 5%-Mo-CN nanotubes than other counterparts. Impedance spectroscopy illustrated the lowest charge transfer resistance (R ct ) of 5%-Mo-CN nanotubes, which further confirms the fast electron transfer kinetics and efficient charge separation resulting in high photocurrent generation. Hence, 5%Mo-CN composite nanotubes can serve as a potential photocatalytic material for viable solar-driven water splitting.Naseer IqbalAdeel AfzalIbrahim KhanMuhammad Shahzeb KhanAhsanulhaq QurashiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Naseer Iqbal Adeel Afzal Ibrahim Khan Muhammad Shahzeb Khan Ahsanulhaq Qurashi Molybdenum impregnated g-C3N4 nanotubes as potentially active photocatalyst for renewable energy applications
description	Abstract Molybdenum (Mo) impregnated g-C3N4 (Mo-CN) nanotubes are fabricated via a thermal/hydrothermal process to augment photoelectrochemical properties during solar-driven water-splitting (SDWS) reactions. Graphitic-C3N4 is an attractive material for photocatalysis because of its suitable band energy, high thermal and chemical stability. The FE-SEM and HR-TEM comprehend the nanotube-like morphology of Mo-CN. The spectroscopic characterization revealed bandgap energy of 2.63 eV with high visible-light activity. The x-ray diffraction of pristine g-C3N4 and Mo-CN nanotubes discloses the formation of triazine-based nanocrystalline g-C3N4, which remains stable during hydrothermal impregnation of Mo. Furthermore, Mo-CN nanotubes possess high sp2-hybridized nitrogen content, and metallic/oxidized Mo nanoparticles (in a ratio of 1:2) are impregnated into g-C3N4. The XPS analysis confirms C, N, and Mo for known atomic and oxidation states in Mo-CN. Furthermore, high photocurrent efficiency (~ 5.5 mA/cm2) is observed from 5%-Mo-CN nanotubes. That displays efficient SDWS by 5%-Mo-CN nanotubes than other counterparts. Impedance spectroscopy illustrated the lowest charge transfer resistance (R ct ) of 5%-Mo-CN nanotubes, which further confirms the fast electron transfer kinetics and efficient charge separation resulting in high photocurrent generation. Hence, 5%Mo-CN composite nanotubes can serve as a potential photocatalytic material for viable solar-driven water splitting.
format	article
author	Naseer Iqbal Adeel Afzal Ibrahim Khan Muhammad Shahzeb Khan Ahsanulhaq Qurashi
author_facet	Naseer Iqbal Adeel Afzal Ibrahim Khan Muhammad Shahzeb Khan Ahsanulhaq Qurashi
author_sort	Naseer Iqbal
title	Molybdenum impregnated g-C3N4 nanotubes as potentially active photocatalyst for renewable energy applications
title_short	Molybdenum impregnated g-C3N4 nanotubes as potentially active photocatalyst for renewable energy applications
title_full	Molybdenum impregnated g-C3N4 nanotubes as potentially active photocatalyst for renewable energy applications
title_fullStr	Molybdenum impregnated g-C3N4 nanotubes as potentially active photocatalyst for renewable energy applications
title_full_unstemmed	Molybdenum impregnated g-C3N4 nanotubes as potentially active photocatalyst for renewable energy applications
title_sort	molybdenum impregnated g-c3n4 nanotubes as potentially active photocatalyst for renewable energy applications
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a7cb171a9bc84670a09c9f281f923155
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Molybdenum impregnated g-C3N4 nanotubes as potentially active photocatalyst for renewable energy applications

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