Reactable ionic liquid synthesis and visible-light photocatalytic activity of dendritic ferric oxide hierarchical structures

Author

Jiexiang Xia ; Hua Liu ; Xiaonong Cheng ; Sheng Yin ; Huaming Li ; Hui Xu ; Li Xu ; Ye Qiu

Author_Institution

Sch. of Chem. & Chem. Eng., Jiangsu Univ., Zhenjiang, China

Volume

7

Issue

8

fYear

2012

fDate

8/1/2012 12:00:00 AM

Firstpage

806

Lastpage

809

Abstract

Dendritic α-Fe₂O₃ micropines and octahedral Fe₃O₄ microcrystals with uniform structures have been successfully synthesised through a reactable ionic liquid process in the presence of 1-butyl-3-methylimidazolium ferricyanide [Bmim]₃[Fe(CN)₆] ionic liquid. During the reactive process, ionic liquid [Bmim]₃[Fe(CN)₆] acts as solvents, templates and direct reactants for the fabrication of dendritic α-Fe₂O₃ micropines and Fe₃O₄ octahedral microcrystals. It is also found that pH value is vital for the formation of dendritic α-Fe₂O₃ micropines and Fe₃O₄ octahedral microcrystals structures. Moreover, both α-Fe₂O₃ micropines and Fe₃O₄ octahedral microcrystals showed efficient photocatalytic degradation activity for decolourisation of MB pollutant.

Keywords

catalysis; crystal structure; dendrites; iron compounds; liquid structure; organic compounds; pH; photochemistry; 1-butyl-3-methylimidazolium ferricyanide; Fe₂O₃; Fe₃O₄; MB pollutant decolourisation; [Bmim]₃[Fe(CN)₆] ionic liquid; dendritic α-Fe₂O₃ micropines; dendritic ferric oxide hierarchical structures; ionic liquid process; octahedral Fe₃O₄ microcrystals; pH value; photocatalytic degradation activity; reactable ionic liquid synthesis; visible light photocatalytic activity;

fLanguage

English

Journal_Title

Micro & Nano Letters, IET

Publisher

iet

ISSN

1750-0443

Type

jour

DOI

10.1049/mnl.2012.0474

Filename

6294611