Preparation and photocatalytic performance of micro/nano structured β₂-SiW₁₁Mn doped polyaniline

Abstract

Micro/nano-structural polyaniline materials were prepared by using thin glass tubes as template in the presence of β₂-SiW₁₁Mn and ammonium persulfate, which were used as dopant and oxidant, respectively, in this system. The materials were characterized by IR, UV-Vis, XRD, TG-DTA and SEM techniques. The photocatalytic performance of polyaniline, β₂-SiW₁₁Mn and β₂-SiW₁₁Mn/PANI composite obtained was investigated using photodegradation of crystal violet as model reaction. The results showed that the photocatalytic activity of β₂-SiW₁₁Mn/PANI composite was much higher than polyaniline and β₂-SiW₁₁Mn due to a synergy between the two. The degradation rate of crystal violet was 91.19%.

Graphical Abstract

Keywords:

• Heteropoly tungstosilicate
• polyaniline
• photocatalytic
• crystal violet

Acknowledgments

We are grateful for the financial support from the Natural Science Foundation of Heilongjiang Province (no. 2007-15) and Science Foundation of Department of Education, Heilongjiang Province for this work (no. 135309443).

Disclosure statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.