Interstitial N-Doped TiO2 for Photocatalytic Methylene Blue Degradation under Visible Light Irradiation

Photocatalysis is a promising method for methylene blue (MB) degradation due to its effectiveness and environmental compatibility. Among the photocatalysts, titanium dioxide (TiO) has been widely used for MB degradation due to its exceptional photocatalytic activity. However, the wide bandgap limits...

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Authors: Li, Dezheng, Calebe, Vilanculo Clesio, Li, Yuqiao, Liu, Huimin|||0000-0001-8258-8263, Lei, Yiming|||0000-0002-3435-6924
Format: article
Publication Date:2024
Country:España
Institution:Universitat Autònoma de Barcelona
Repository:Dipòsit Digital de Documents de la UAB
Language:English
OAI Identifier:oai:ddd.uab.cat:304173
Online Access:https://ddd.uab.cat/record/304173
https://dx.doi.org/urn:doi:10.3390/catal14100681
Access Level:Open access
Keyword:TiO2
Nitrogen doping
Photocatalytic activity
Methylene bule degradation
Visible light
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spelling Interstitial N-Doped TiO2 for Photocatalytic Methylene Blue Degradation under Visible Light IrradiationLi, DezhengCalebe, Vilanculo ClesioLi, YuqiaoLiu, Huimin|||0000-0001-8258-8263Lei, Yiming|||0000-0002-3435-6924TiO2Nitrogen dopingPhotocatalytic activityMethylene bule degradationVisible lightPhotocatalysis is a promising method for methylene blue (MB) degradation due to its effectiveness and environmental compatibility. Among the photocatalysts, titanium dioxide (TiO) has been widely used for MB degradation due to its exceptional photocatalytic activity. However, the wide bandgap limits the degradation efficiency of TiO under visible light. Here, an interstitial nitrogen-doped TiO (5%N/TiO) used thiourea as the N source was fabricated for visible light-derived MB degradation. The 5%N/TiO exhibited an extended absorption range of visible light. Moreover, photoelectrochemical measurements showed an improvement in the photocurrent response and charge transfer behavior on N/TiO. Thus, 5%N/TiO had enhanced photocatalytic activity compared with pristine TiO and substitutive N-doped TiO (5%N/TiO). The accelerated photocatalytic MB degradation process on N/TiO could be mainly attributed to the interstitial N doping, which caused the appearance of new energy states and extended optical properties. Through comparing the impact of interstitial and substitutive in TiO activity, our work proposes a suitable form of element doping to enhance the optical properties and photocatalytic activity of TiO and even other semiconductors, providing guidance for future work. 22024-01-0120242024-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/304173https://dx.doi.org/urn:doi:10.3390/catal14100681reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:3041732026-06-06T12:50:31Z
dc.title.none.fl_str_mv Interstitial N-Doped TiO2 for Photocatalytic Methylene Blue Degradation under Visible Light Irradiation
title Interstitial N-Doped TiO2 for Photocatalytic Methylene Blue Degradation under Visible Light Irradiation
spellingShingle Interstitial N-Doped TiO2 for Photocatalytic Methylene Blue Degradation under Visible Light Irradiation
Li, Dezheng
TiO2
Nitrogen doping
Photocatalytic activity
Methylene bule degradation
Visible light
title_short Interstitial N-Doped TiO2 for Photocatalytic Methylene Blue Degradation under Visible Light Irradiation
title_full Interstitial N-Doped TiO2 for Photocatalytic Methylene Blue Degradation under Visible Light Irradiation
title_fullStr Interstitial N-Doped TiO2 for Photocatalytic Methylene Blue Degradation under Visible Light Irradiation
title_full_unstemmed Interstitial N-Doped TiO2 for Photocatalytic Methylene Blue Degradation under Visible Light Irradiation
title_sort Interstitial N-Doped TiO2 for Photocatalytic Methylene Blue Degradation under Visible Light Irradiation
dc.creator.none.fl_str_mv Li, Dezheng
Calebe, Vilanculo Clesio
Li, Yuqiao
Liu, Huimin|||0000-0001-8258-8263
Lei, Yiming|||0000-0002-3435-6924
author Li, Dezheng
author_facet Li, Dezheng
Calebe, Vilanculo Clesio
Li, Yuqiao
Liu, Huimin|||0000-0001-8258-8263
Lei, Yiming|||0000-0002-3435-6924
author_role author
author2 Calebe, Vilanculo Clesio
Li, Yuqiao
Liu, Huimin|||0000-0001-8258-8263
Lei, Yiming|||0000-0002-3435-6924
author2_role author
author
author
author
dc.subject.none.fl_str_mv TiO2
Nitrogen doping
Photocatalytic activity
Methylene bule degradation
Visible light
topic TiO2
Nitrogen doping
Photocatalytic activity
Methylene bule degradation
Visible light
description Photocatalysis is a promising method for methylene blue (MB) degradation due to its effectiveness and environmental compatibility. Among the photocatalysts, titanium dioxide (TiO) has been widely used for MB degradation due to its exceptional photocatalytic activity. However, the wide bandgap limits the degradation efficiency of TiO under visible light. Here, an interstitial nitrogen-doped TiO (5%N/TiO) used thiourea as the N source was fabricated for visible light-derived MB degradation. The 5%N/TiO exhibited an extended absorption range of visible light. Moreover, photoelectrochemical measurements showed an improvement in the photocurrent response and charge transfer behavior on N/TiO. Thus, 5%N/TiO had enhanced photocatalytic activity compared with pristine TiO and substitutive N-doped TiO (5%N/TiO). The accelerated photocatalytic MB degradation process on N/TiO could be mainly attributed to the interstitial N doping, which caused the appearance of new energy states and extended optical properties. Through comparing the impact of interstitial and substitutive in TiO activity, our work proposes a suitable form of element doping to enhance the optical properties and photocatalytic activity of TiO and even other semiconductors, providing guidance for future work.
publishDate 2024
dc.date.none.fl_str_mv 2
2024-01-01
2024
2024-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/304173
https://dx.doi.org/urn:doi:10.3390/catal14100681
url https://ddd.uab.cat/record/304173
https://dx.doi.org/urn:doi:10.3390/catal14100681
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
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