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Improved photocatalytic activity of TiO2 modified with unique O–Zn–Cl surface species.

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Title: Improved photocatalytic activity of TiO2 modified with unique O–Zn–Cl surface species.
Authors: Yan, Sai1, Yu, Yanlong2 yanlong.yu@qq.com, Gu, Yao1, Liu, Yue3, Cao, Yaan1 caoya@nankai.edu.cn
Source: Separation & Purification Technology. Oct2016, Vol. 171, p118-122. 5p.
Subjects: Titanium catalyst activity, Surface chemistry, Sol-gel processes, Photoreduction, Charge carriers, Photoelectrons
Abstract: TiO 2 modified with unique surface O–Zn–Cl species is prepared by a simple sol-gel method. The Zn modified TiO 2 samples exhibit improved photocatalytic activity on photo-reduction of CO 2 into CH 4 , compared with pure TiO 2 . The surface structure and photocatalytic properties are investigated by Raman, XRD, XPS, UV–vis absorption spectra, PL and time-resolved PL decay curves techniques. It is revealed that the existence of O–Zn–Cl species can extend the absorption into visible region, inhibit the recombination of charge carriers and prolong the lifetime of photogenerated electrons. Therefore the O–Zn–Cl modified TiO 2 samples represent an improved photocatalytic performance on photo-reduction of CO 2 into CH 4 . [ABSTRACT FROM AUTHOR]
Copyright of Separation & Purification Technology is the property of Elsevier B.V. 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.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 117732401
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Improved photocatalytic activity of TiO2 modified with unique O–Zn–Cl surface species.
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  Data: <searchLink fieldCode="AR" term="%22Yan%2C+Sai%22">Yan, Sai</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yu%2C+Yanlong%22">Yu, Yanlong</searchLink><relatesTo>2</relatesTo><i> yanlong.yu@qq.com</i><br /><searchLink fieldCode="AR" term="%22Gu%2C+Yao%22">Gu, Yao</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Liu%2C+Yue%22">Liu, Yue</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Cao%2C+Yaan%22">Cao, Yaan</searchLink><relatesTo>1</relatesTo><i> caoya@nankai.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Separation+%26+Purification+Technology%22">Separation & Purification Technology</searchLink>. Oct2016, Vol. 171, p118-122. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Titanium+catalyst+activity%22">Titanium catalyst activity</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+chemistry%22">Surface chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Sol-gel+processes%22">Sol-gel processes</searchLink><br /><searchLink fieldCode="DE" term="%22Photoreduction%22">Photoreduction</searchLink><br /><searchLink fieldCode="DE" term="%22Charge+carriers%22">Charge carriers</searchLink><br /><searchLink fieldCode="DE" term="%22Photoelectrons%22">Photoelectrons</searchLink>
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  Label: Abstract
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  Data: TiO 2 modified with unique surface O–Zn–Cl species is prepared by a simple sol-gel method. The Zn modified TiO 2 samples exhibit improved photocatalytic activity on photo-reduction of CO 2 into CH 4 , compared with pure TiO 2 . The surface structure and photocatalytic properties are investigated by Raman, XRD, XPS, UV–vis absorption spectra, PL and time-resolved PL decay curves techniques. It is revealed that the existence of O–Zn–Cl species can extend the absorption into visible region, inhibit the recombination of charge carriers and prolong the lifetime of photogenerated electrons. Therefore the O–Zn–Cl modified TiO 2 samples represent an improved photocatalytic performance on photo-reduction of CO 2 into CH 4 . [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Separation & Purification Technology is the property of Elsevier B.V. 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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      – Type: doi
        Value: 10.1016/j.seppur.2016.07.022
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Surface chemistry
        Type: general
      – SubjectFull: Sol-gel processes
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      – SubjectFull: Photoreduction
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      – SubjectFull: Charge carriers
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      – SubjectFull: Photoelectrons
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              Text: Oct2016
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