Preparation of visible-light active N-doped nano-TiO2 photocatalyst by hydrothermal method

Qinglin Yang, Ying Sun, Junxin Su, Lin Guo, Lei Jiang

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

3 Citations (Scopus)

Abstract

The nitrogen doping nano-titania (TiO2) photocatalyst was synthesized through a hydrothermal method. Ethylene Diamine Tetraacetic Acid (EDTA) was selected as the nitrogen resource to combine with titanium sulfate (Ti(SO4)2) via chemical complexation. The crystal size and phase, morphology, chemical state and photocatalytic ability were analyzed and characterized by X-ray diffraction (XRD), UV-visible spectrophotometer(UV-Vis), field emission scanning electron microscopy (FE-SEM) and X-ray photoelectron spectroscopy (XPS). A strong absorption in visible light region was observed. The results showed that the nitrogen was doped effectively and the chemical state of the nitrogen was Ti-N-O and Ti-O-N. Furthermore, the nitrogen doping TiO2 was expressed as TiO1.9697N0.0303 by calculating the concentration of nitrogen. The photocatalytic ability in visible light region could be improved by nitrogen doping in comparison with commercial P25 through the photodegradaton of organic pollutant methylene blue (MB), demonstrating its promising potential in environmental application.

Original languageEnglish
Title of host publicationICMREE2011 - Proceedings 2011 International Conference on Materials for Renewable Energy and Environment
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages1433-1438
Number of pages6
Volume2
ISBN (Print)9781612847504
DOIs
Publication statusPublished - 2011
Externally publishedYes
EventInternational Conference on Materials for Renewable Energy and Environment (ICMREE) 2011 - Shanghai, China
Duration: 20 May 201122 May 2011

Conference

ConferenceInternational Conference on Materials for Renewable Energy and Environment (ICMREE) 2011
Abbreviated titleICMREE2011
CountryChina
CityShanghai
Period20/05/1122/05/11

Keywords

  • hydrothermal method
  • nitrogendoped
  • TiO photocatalyst
  • visible-light active

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