Synthesis and characterization of visible-light-active TiO 2-Based Photocatalysts

Xiangxin Yang, Chundi Cao, Keith Hohn, Larry Erickson, Ronaldo Maghirang, Kenneth Klabunde

Research output: Chapter in Book/Report/Conference proceedingConference contribution


TiO2 has gained great popularity for environmental treatment and purification purposes; however, it shows poor absorption of visible light and requires ultraviolet (UV) light for activation. Here we have successfully synthesized a visible-light-active carbon and nitrogen co-doped TiO2 catalyst. The catalyst was characterized by Raman spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), diffuse reflectance spectroscopy (DRS). Results showed that the optical response of modified TiO2 was extended to the visible light region. Nitrogen substituted for some of the lattice oxygen atoms and most of the carbon was in the form of elemental carbon. The photocatalytic tests indicated that the modified catalyst demonstrated higher visible-light activity for the degradation of methylene blue (MB) than TiO2. Visible-light-active; Nitrogen; Carbon; TiO 2; Photocatalyst;.

Original languageEnglish (US)
Title of host publicationAIChE100 - 2008 AIChE Annual Meeting, Conference Proceedings
StatePublished - 2008
Externally publishedYes
Event2008 AIChE Annual Meeting, AIChE 100 - Philadelphia, PA, United States
Duration: Nov 16 2008Nov 21 2008

Publication series

NameAIChE Annual Meeting, Conference Proceedings


Other2008 AIChE Annual Meeting, AIChE 100
Country/TerritoryUnited States
CityPhiladelphia, PA

ASJC Scopus subject areas

  • General Chemical Engineering
  • General Chemistry


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