Modification of Rutile Nano-TiO₂ Powders with Visible Light Photocatalytic Activity in Hydrogen or Nitrogen Atmosphere

Jiacheng Gao College of Materials, Science and Engineering, Chongqing University, 400030, Chongqing, China

Xiaowei Tan College of Materials, Science and Engineering, Chongqing University, 400030, Chongqing, China

Yigao Miao College of Materials, Science and Engineering, Chongqing University, 400030, Chongqing, China

Renlong Xin College of Materials, Science and Engineering, Chongqing University, 400030, Chongqing, China

Abstract

In this study, the as-synthesized rutile nano-TiO₂ powders were heated in hydrogen or nitrogen atmosphere at different temperatures. The surface morphology, UV-Vis absorption spectra, and element composition were studied using TEM, UV-Vis spectrometer, and XPS, respectively. The photocatalytic activity of the modified TiO₂ samples under visible light irradiation was evaluated by the degradation of methyl orange solution. The results showed that the dispersibility of modified rutile nano-TiO₂ powders was improved and its absorption edge was red shift to visible light because the presence of oxygen vacancies changed the energy band structure of rutile TiO₂.

Keywords:

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

Modification of Rutile Nano-TiO₂ Powders with Visible Light Photocatalytic Activity in Hydrogen or Nitrogen Atmosphere

Information for

Open access

Opportunities

Help and information

Modification of Rutile Nano-TiO2 Powders with Visible Light Photocatalytic Activity in Hydrogen or Nitrogen Atmosphere

Abstract

Reprints and Corporate Permissions

Academic Permissions

Related research

To cite this article:

Download citation

Information for

Open access

Opportunities

Help and information

Keep up to date

Your download is now in progress and you may close this window

Login or register to access this feature

Modification of Rutile Nano-TiO₂ Powders with Visible Light Photocatalytic Activity in Hydrogen or Nitrogen Atmosphere