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Structure-Dependent Performance of N-Doped TiO2 Nanowires toward Efficient Solar-Driven Hydrogen Production

Bulletin of Chemical Reaction Engineering & Catalysis · Vol. ume (2026) · hlm. 490–499

DOI
10.9767/bcrec.20606
ISSN
1978-2993
Terbit
2026-08-30
Penerbit
Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-sa/4.0

Abstrak

This research focuses on enhancing hydrogen production via the photocatalytic method using a TiO2 catalyst with nitrogen doping and morphology modification to improve efficiency. Nitrogen-doped TiO2 nanowires (NTN) were successfully hydrothermally grown on titanium foil to produce thin-film photocatalysts for the visible-light-driven production of hydrogen. Nitrogen incorporation induced bandgap narrowing, from 3.18 eV to 2.85 eV, by introducing N 2p states close to the valence band, thereby increasing visible-light absorption. Structural analyses confirmed the formation of lattice strain and oxygen vacancies associated with substitutional doping, while the one-dimensional nanowire architecture enhanced charge transport and reduced carrier recombination pathways. The optimized N–TiO2 NWs demonstrated the highest hydrogen evolution rate of 2.385 µmol/cm2 under 180 minutes of visible-light irradiation, corresponding to a hydrogen evolution rate of 0.795 µmol/cm²/h, without a noble-metal co-catalyst. A strong correlation is established between nitrogen-induced surface electronic modification and the enhancement of nanowire-driven charge separation. This study presents a recyclable and scalable thin-film photocatalyst design suitable for future solar hydrogen production systems. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Upita SeptianiAfiliasi tidak diketahui4
Soni SetiadjiAfiliasi tidak diketahui3
Mai EfdiAfiliasi tidak diketahui3
Safni SafniAfiliasi tidak diketahui3
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Ani Sri WahyuniAfiliasi tidak diketahui1
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Nurul PratiwiUniversity of Mataram1
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Romario AbdullahAfiliasi tidak diketahui1
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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.bcrec.id/index.php/bcrec/oai, pertama di-harvest 8 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Structure-Dependent Performance of N-Doped TiO2 Nanowires toward Efficient Solar-Driven Hydrogen Production</dc:title>
	<dc:creator>Attalario, Evan</dc:creator>
	<dc:creator>Rahma, Resha Mutia</dc:creator>
	<dc:creator>Kusumawati, Yuly</dc:creator>
	<dc:creator>Ivansyah, Atthar Luqman</dc:creator>
	<dc:creator>Putri, Yulia Eka</dc:creator>
	<dc:creator>Wellia, Diana Vanda</dc:creator>
	<dc:subject xml:lang="en-US">TiO2 nanowires; chitosan; photocatalytic; photoproduction of hydrogen (H2)</dc:subject>
	<dc:description xml:lang="en-US">This research focuses on enhancing hydrogen production via the photocatalytic method using a TiO2 catalyst with nitrogen doping and morphology modification to improve efficiency. Nitrogen-doped TiO2 nanowires (NTN) were successfully hydrothermally grown on titanium foil to produce thin-film photocatalysts for the visible-light-driven production of hydrogen. Nitrogen incorporation induced bandgap narrowing, from 3.18 eV to 2.85 eV, by introducing N 2p states close to the valence band, thereby increasing visible-light absorption. Structural analyses confirmed the formation of lattice strain and oxygen vacancies associated with substitutional doping, while the one-dimensional nanowire architecture enhanced charge transport and reduced carrier recombination pathways. The optimized N–TiO2 NWs demonstrated the highest hydrogen evolution rate of 2.385 µmol/cm2 under 180 minutes of visible-light irradiation, corresponding to a hydrogen evolution rate of 0.795 µmol/cm²/h, without a noble-metal co-catalyst. A strong correlation is established between nitrogen-induced surface electronic modification and the enhancement of nanowire-driven charge separation. This study presents a recyclable and scalable thin-film photocatalyst design suitable for future solar hydrogen production systems. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).</dc:description>
	<dc:publisher xml:lang="en-US">Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)</dc:publisher>
	<dc:date>2026-08-30</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US"></dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.bcrec.id/index.php/bcrec/article/view/20606</dc:identifier>
	<dc:identifier>10.9767/bcrec.20606</dc:identifier>
	<dc:source xml:lang="en-US">Bulletin of Chemical Reaction Engineering &amp; Catalysis; 2026: BCREC Volume 21 Issue 2 Year 2026 (August 2026); 490-499</dc:source>
	<dc:source>1978-2993</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/view/20606/9943</dc:relation>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/downloadSuppFile/20606/6135</dc:relation>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/downloadSuppFile/20606/6136</dc:relation>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/downloadSuppFile/20606/6137</dc:relation>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/downloadSuppFile/20606/6138</dc:relation>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/downloadSuppFile/20606/6270</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2026 by Authors, Published by BCREC Publishing Group</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-sa/4.0</dc:rights>
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