View in EDS

Photocatalytic properties of exposed crystal surface-controlled rutile TiO2 nanorod assembled microspheres.

Saved in:
Bibliographic Details
Title: Photocatalytic properties of exposed crystal surface-controlled rutile TiO2 nanorod assembled microspheres.
Authors: Sun, Bin1,2, Zhou, Guowei1 guoweizhou@hotmail.com, Zhang, Yan1, Liu, Ruirui1, Li, Tianduo1
Source: Chemical Engineering Journal. Mar2015, Vol. 264, p125-133. 9p.
Subjects: Photocatalysis, Titanium catalyst activity, Nanorods, Metal fabrication, Crystal photochemistry, Surface chemistry
Abstract: The photocatalytic activity of TiO 2 is correlated with its exposed crystal surface, phase composition, morphology, and crystallite size. In this study, TiO 2 microspheres with exposed crystal surface-controlled rutile TiO 2 nanorods were fabricated by employing a simple hydrothermal reaction in the presence of NaCl solution. The crystal phase, morphology, and size of the as-obtained materials were significantly dependent on the NaCl concentration. The exposed crystal surface of TiO 2 nanorods could be tailored by adjusting the NaCl concentration. With increasing NaCl concentration, the exposed area of the (1 1 1) crystal surface gradually decreased, whereas the area of the newly exposed (0 0 1) surface gradually increased. Characterization results indicated that the crystal phase of the TiO 2 microspheres was the only rutile structure in the system and no brookite phase was found. The diameter of the microspheres can be changed from 3.5 μm to 2 μm by tuning the NaCl concentration. Photocatalytic degradation of papermaking wastewater using the synthesized materials showed that the photocatalytic activities of the samples are affected by the exposed (0 0 1) crystal surface of TiO 2 , which can induce the separation of electrons and holes, thereby resulting in improved photocatalytic activity. [ABSTRACT FROM AUTHOR]
Copyright of Chemical Engineering Journal 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
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 100794089
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Photocatalytic properties of exposed crystal surface-controlled rutile TiO2 nanorod assembled microspheres.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Sun%2C+Bin%22">Sun, Bin</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Zhou%2C+Guowei%22">Zhou, Guowei</searchLink><relatesTo>1</relatesTo><i> guoweizhou@hotmail.com</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Yan%22">Zhang, Yan</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Liu%2C+Ruirui%22">Liu, Ruirui</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Li%2C+Tianduo%22">Li, Tianduo</searchLink><relatesTo>1</relatesTo>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Chemical+Engineering+Journal%22">Chemical Engineering Journal</searchLink>. Mar2015, Vol. 264, p125-133. 9p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Photocatalysis%22">Photocatalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Titanium+catalyst+activity%22">Titanium catalyst activity</searchLink><br /><searchLink fieldCode="DE" term="%22Nanorods%22">Nanorods</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+fabrication%22">Metal fabrication</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+photochemistry%22">Crystal photochemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+chemistry%22">Surface chemistry</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The photocatalytic activity of TiO 2 is correlated with its exposed crystal surface, phase composition, morphology, and crystallite size. In this study, TiO 2 microspheres with exposed crystal surface-controlled rutile TiO 2 nanorods were fabricated by employing a simple hydrothermal reaction in the presence of NaCl solution. The crystal phase, morphology, and size of the as-obtained materials were significantly dependent on the NaCl concentration. The exposed crystal surface of TiO 2 nanorods could be tailored by adjusting the NaCl concentration. With increasing NaCl concentration, the exposed area of the (1 1 1) crystal surface gradually decreased, whereas the area of the newly exposed (0 0 1) surface gradually increased. Characterization results indicated that the crystal phase of the TiO 2 microspheres was the only rutile structure in the system and no brookite phase was found. The diameter of the microspheres can be changed from 3.5 μm to 2 μm by tuning the NaCl concentration. Photocatalytic degradation of papermaking wastewater using the synthesized materials showed that the photocatalytic activities of the samples are affected by the exposed (0 0 1) crystal surface of TiO 2 , which can induce the separation of electrons and holes, thereby resulting in improved photocatalytic activity. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Chemical Engineering Journal 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=100794089
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.cej.2014.11.070
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 9
        StartPage: 125
    Subjects:
      – SubjectFull: Photocatalysis
        Type: general
      – SubjectFull: Titanium catalyst activity
        Type: general
      – SubjectFull: Nanorods
        Type: general
      – SubjectFull: Metal fabrication
        Type: general
      – SubjectFull: Crystal photochemistry
        Type: general
      – SubjectFull: Surface chemistry
        Type: general
    Titles:
      – TitleFull: Photocatalytic properties of exposed crystal surface-controlled rutile TiO2 nanorod assembled microspheres.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Sun, Bin
      – PersonEntity:
          Name:
            NameFull: Zhou, Guowei
      – PersonEntity:
          Name:
            NameFull: Zhang, Yan
      – PersonEntity:
          Name:
            NameFull: Liu, Ruirui
      – PersonEntity:
          Name:
            NameFull: Li, Tianduo
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 15
              M: 03
              Text: Mar2015
              Type: published
              Y: 2015
          Identifiers:
            – Type: issn-print
              Value: 13858947
          Numbering:
            – Type: volume
              Value: 264
          Titles:
            – TitleFull: Chemical Engineering Journal
              Type: main
ResultId 1