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A Facile Strategy for the Preparation of N-Doped TiO 2 with Oxygen Vacancy via the Annealing Treatment with Urea.

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Title: A Facile Strategy for the Preparation of N-Doped TiO 2 with Oxygen Vacancy via the Annealing Treatment with Urea.
Authors: Zhang, Zhe1 (AUTHOR), Cui, Zhenpeng1,2 (AUTHOR) cuizp@lzu.edu.cn, Xu, Yinghao1 (AUTHOR), Ghazzal, Mohamed Nawfal3 (AUTHOR), Colbeau-Justin, Christophe3 (AUTHOR), Pan, Duoqiang1,2 (AUTHOR), Wu, Wangsuo1,2 (AUTHOR)
Source: Nanomaterials (2079-4991). May2024, Vol. 14 Issue 10, p818. 8p.
Subjects: Titanium dioxide, Doping agents (Chemistry), Urea, Oxygen, Visible spectra
Abstract: Although titanium dioxide (TiO2) has a wide range of potential applications, the photocatalytic performance of TiO2 is limited by both its limited photoresponse range and fast recombination of the photogenerated charge carriers. In this work, the preparation of nitrogen (N)-doped TiO2 accompanied by the introduction of oxygen vacancy (Vo) has been achieved via a facile annealing treatment with urea as the N source. During the annealing treatment, the presence of urea not only realizes the N-doping of TiO2 but also creates Vo in N-doped TiO2 (N-TiO2), which is also suitable for commercial TiO2 (P25). Unexpectedly, the annealing treatment-induced decrease in the specific surface area of N-TiO2 is inhibited by the N-doping and, thus, more active sites are maintained. Therefore, both the N-doping and formation of Vo as well as the increased active sites contribute to the excellent photocatalytic performance of N-TiO2 under visible light irradiation. Our work offers a facile strategy for the preparation of N-TiO2 with Vo via the annealing treatment with urea. [ABSTRACT FROM AUTHOR]
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
  Group: Ti
  Data: A Facile Strategy for the Preparation of N-Doped TiO 2 with Oxygen Vacancy via the Annealing Treatment with Urea.
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. May2024, Vol. 14 Issue 10, p818. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Titanium+dioxide%22">Titanium dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Doping+agents+%28Chemistry%29%22">Doping agents (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Urea%22">Urea</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygen%22">Oxygen</searchLink><br /><searchLink fieldCode="DE" term="%22Visible+spectra%22">Visible spectra</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Although titanium dioxide (TiO2) has a wide range of potential applications, the photocatalytic performance of TiO2 is limited by both its limited photoresponse range and fast recombination of the photogenerated charge carriers. In this work, the preparation of nitrogen (N)-doped TiO2 accompanied by the introduction of oxygen vacancy (Vo) has been achieved via a facile annealing treatment with urea as the N source. During the annealing treatment, the presence of urea not only realizes the N-doping of TiO2 but also creates Vo in N-doped TiO2 (N-TiO2), which is also suitable for commercial TiO2 (P25). Unexpectedly, the annealing treatment-induced decrease in the specific surface area of N-TiO2 is inhibited by the N-doping and, thus, more active sites are maintained. Therefore, both the N-doping and formation of Vo as well as the increased active sites contribute to the excellent photocatalytic performance of N-TiO2 under visible light irradiation. Our work offers a facile strategy for the preparation of N-TiO2 with Vo via the annealing treatment with urea. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/nano14100818
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        Text: English
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        PageCount: 8
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      – SubjectFull: Titanium dioxide
        Type: general
      – SubjectFull: Doping agents (Chemistry)
        Type: general
      – SubjectFull: Urea
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      – SubjectFull: Oxygen
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      – SubjectFull: Visible spectra
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      – TitleFull: A Facile Strategy for the Preparation of N-Doped TiO 2 with Oxygen Vacancy via the Annealing Treatment with Urea.
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            NameFull: Zhang, Zhe
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            NameFull: Cui, Zhenpeng
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            NameFull: Xu, Yinghao
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            NameFull: Colbeau-Justin, Christophe
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            NameFull: Pan, Duoqiang
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              M: 05
              Text: May2024
              Type: published
              Y: 2024
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