Highly-efficient photocatalytic hydrogen evolution triggered by spatial confinement effects over co-crystal templated boron-doped carbon nitride hollow nanotubes

Dai, W; Wang, R; Chen, Z; Deng, S; Huang, C; Luo, W; Chen, H

Highly-efficient photocatalytic hydrogen evolution triggered by spatial confinement effects over co-crystal templated boron-doped carbon nitride hollow nanotubes

Dai, W Wang, R Chen, Z

Deng, S Huang, C Luo, W Chen, H

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Publisher:: ROYAL SOC CHEMISTRY
Publication Type:: Journal Article
Citation:: Journal of Materials Chemistry A, 2023, 11, (14), pp. 7584-7595
Issue Date:: 2023-02-27

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Field	Value	Language
dc.contributor.author	Dai, W
dc.contributor.author	Wang, R
dc.contributor.author	Chen, Z https://orcid.org/0000-0003-0627-0856
dc.contributor.author	Deng, S
dc.contributor.author	Huang, C
dc.contributor.author	Luo, W
dc.contributor.author	Chen, H
dc.date.accessioned	2024-04-26T00:48:12Z
dc.date.available	2024-04-26T00:48:12Z
dc.date.issued	2023-02-27
dc.identifier.citation	Journal of Materials Chemistry A, 2023, 11, (14), pp. 7584-7595
dc.identifier.issn	2050-7488
dc.identifier.issn	2050-7496
dc.identifier.uri	http://hdl.handle.net/10453/178375
dc.description.abstract	Conversion of solar energy into hydrogen energy through photocatalytic water splitting is vital for addressing the energy crisis problem and achieving carbon neutrality. Herein, boron-doped carbon nitride (BCN) hollow nanotubes have been successfully fabricated via a boric acid-assisted co-crystallization templating approach. The as-synthesized BCN hollow nanotubes with the optimal boron doping concentration show a significantly improved photocatalytic hydrogen evolution efficiency of 3.0658 mmol g−1 h−1, which is 7.2 times higher than that of the well-explored bulk C3N4. The electron density is redistributed as caused by electron-deficient boron dopants, leading to extended visible light capture and accelerated charge transport. The remarkable performance enhancement is attributed to the overall synergetic effects of the unique spatial confinement in hollow nanotubes and exceptionally modulated band structure. This work demonstrates an efficient strategy to enhance photocatalytic activity via synergetic morphology engineering and band structure engineering, which paves the way for engineering carbon nitride materials for energy and environmental catalysis applications.
dc.language	English
dc.publisher	ROYAL SOC CHEMISTRY
dc.relation.ispartof	Journal of Materials Chemistry A
dc.relation.isbasedon	10.1039/d3ta00199g
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0303 Macromolecular and Materials Chemistry, 0912 Materials Engineering, 0915 Interdisciplinary Engineering
dc.subject.classification	3403 Macromolecular and materials chemistry
dc.subject.classification	4004 Chemical engineering
dc.subject.classification	4016 Materials engineering
dc.title	Highly-efficient photocatalytic hydrogen evolution triggered by spatial confinement effects over co-crystal templated boron-doped carbon nitride hollow nanotubes
dc.type	Journal Article
utslib.citation.volume	11
utslib.for	0303 Macromolecular and Materials Chemistry
utslib.for	0912 Materials Engineering
utslib.for	0915 Interdisciplinary Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2024-04-26T00:48:10Z
pubs.issue	14
pubs.publication-status	Published
pubs.volume	11
utslib.citation.issue	14

Abstract:

Conversion of solar energy into hydrogen energy through photocatalytic water splitting is vital for addressing the energy crisis problem and achieving carbon neutrality. Herein, boron-doped carbon nitride (BCN) hollow nanotubes have been successfully fabricated via a boric acid-assisted co-crystallization templating approach. The as-synthesized BCN hollow nanotubes with the optimal boron doping concentration show a significantly improved photocatalytic hydrogen evolution efficiency of 3.0658 mmol g−1 h−1, which is 7.2 times higher than that of the well-explored bulk C3N4. The electron density is redistributed as caused by electron-deficient boron dopants, leading to extended visible light capture and accelerated charge transport. The remarkable performance enhancement is attributed to the overall synergetic effects of the unique spatial confinement in hollow nanotubes and exceptionally modulated band structure. This work demonstrates an efficient strategy to enhance photocatalytic activity via synergetic morphology engineering and band structure engineering, which paves the way for engineering carbon nitride materials for energy and environmental catalysis applications.

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http://hdl.handle.net/10453/178375