Efficient visible light-induced photocatalytic degradation of contaminant by spindle-like PANI/BiVO4

Meng Shang, Wenzhong Wang, Songmei Sun, Jia Ren, Lin Zhou, Ling Zhang

Research output: Contribution to journalArticle

146 Citations (Scopus)

Abstract

Photocatalytic active spindle-like BiVO4 modified by polyaniline (PANI) was synthesized via a sonochemical approach for the first time. Scanning electron microscope (SEM) and transmission electron microscopy (TEM) images Revealed that the photocatalysts are composed of well-crystallized small nanoparticles. The efficient photocatalytic activity in the degradation of a widely used dye, tetraethylated rhodamine (RhB), and phenol under visible-light irradiation (λ > 420 nm) was realized by the spindle-like PANI/BiVO4. Besides decoloring, reduction of the chemical oxygen demand (COD) concentration was also observed in the degradation of RhB, further demonstrating the photocatalytic performance of PANI/BiVO4. Additionally, the notable enhanced photocatalytic performance for phenol oxidation was also realized with the assistance of a little amount of H 2O2. The enhanced photocatalytic activity could be attributed to the synergic effect between PANI and BiVO4, which promoted the migration efficiency of photogenerated electron-hole. According to experimental results, the possible photocatalytic mechanisms of the PANI/BiVO4 photocatalyst were proposed in order to guide the further improvement of its photocatalytic performance.

Original languageEnglish
Pages (from-to)20228-20233
Number of pages6
JournalJournal of Physical Chemistry C
Volume113
Issue number47
DOIs
Publication statusPublished - Dec 8 2009
Externally publishedYes

Fingerprint

spindles
Polyaniline
contaminants
Impurities
degradation
Degradation
phenols
Photocatalysts
Phenol
Phenols
rhodamine
electron microscopes
dyes
Rhodamines
Chemical oxygen demand
nanoparticles
transmission electron microscopy
oxidation
irradiation
scanning

All Science Journal Classification (ASJC) codes

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

Cite this

Efficient visible light-induced photocatalytic degradation of contaminant by spindle-like PANI/BiVO4. / Shang, Meng; Wang, Wenzhong; Sun, Songmei; Ren, Jia; Zhou, Lin; Zhang, Ling.

In: Journal of Physical Chemistry C, Vol. 113, No. 47, 08.12.2009, p. 20228-20233.

Research output: Contribution to journalArticle

Shang, Meng ; Wang, Wenzhong ; Sun, Songmei ; Ren, Jia ; Zhou, Lin ; Zhang, Ling. / Efficient visible light-induced photocatalytic degradation of contaminant by spindle-like PANI/BiVO4. In: Journal of Physical Chemistry C. 2009 ; Vol. 113, No. 47. pp. 20228-20233.
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