Photocatalytic properties of Nd and C Codoped TiO 2 with the Whole range of visible light absorption

Xiaoyong Wu, Shu Yin, Qiang Dong, Chongshen Guo, Takeshi Kimura, Jun Ichi Matsushita, Tsugio Sato

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76 Citations (Scopus)

Abstract

The Nd and C codoped TiO 2 (Nd-C-TiO 2 ) samples were successfully prepared by a facile calcination assisted solvothermal reaction without any addition of other C precursors except for Ti source and ethanol solvent. The prepared samples were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM), energy dispersive X-ray (EDX), X-ray photoelectron spectroscopy (XPS), UV-vis diffuse reflectance spectrum (DRS), and photoluminescence spectra (PL). The results showed that the visible absorption of as-prepared samples has been dramatically improved by codoping of C and Nd in TiO 2 , which covered the UV and whole visible light range from 200 to 900 nm. Moreover, the Nd-C-TiO 2 samples represented not only excellent destruction ability of NO x gas but also degradation activity for methyl orange solution under visible light superior to pure TiO 2 , C-TiO 2 , and Nd-TiO 2 . The optimal Nd codoping concentration was determined as 2 at. %.

Original languageEnglish
Pages (from-to)8345-8352
Number of pages8
JournalJournal of Physical Chemistry C
Volume117
Issue number16
DOIs
Publication statusPublished - 2013 Apr 25

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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