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PEG-Assisted Hydrothermal Synthesis and Photocatalytic Activity of Bi2Fe4O9 Crystallites

Published online by Cambridge University Press:  14 March 2011

Dengrong Cai ,
Jianmin Li ,
Shundong Bu ,
Shengwen Yu ,
Dengren Jin  and
Jinrong Cheng
Dengrong Cai
Affiliation:
School of Materials Science and Engineering, Shanghai University, Shanghai, China Corresponding E-mail: jrcheng@staff.shu.edu.cn
Jianmin Li
Affiliation:
School of Materials Science and Engineering, Shanghai University, Shanghai, China Corresponding E-mail: jrcheng@staff.shu.edu.cn
Shundong Bu
Affiliation:
School of Materials Science and Engineering, Shanghai University, Shanghai, China Corresponding E-mail: jrcheng@staff.shu.edu.cn
Shengwen Yu
Affiliation:
School of Materials Science and Engineering, Shanghai University, Shanghai, China Corresponding E-mail: jrcheng@staff.shu.edu.cn
Dengren Jin
Affiliation:
School of Materials Science and Engineering, Shanghai University, Shanghai, China Corresponding E-mail: jrcheng@staff.shu.edu.cn
Jinrong Cheng
Affiliation:
School of Materials Science and Engineering, Shanghai University, Shanghai, China Corresponding E-mail: jrcheng@staff.shu.edu.cn
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Abstract

A facile hydrothermal route assisted by polyethylene glycol (PEG) 400 was utilized to synthesize single-phase Bi2Fe4O9 crystallites. X-ray diffraction results showed the products with PEG 400 of 30 g/L exhibited a preferred growth along the (001) plane. Transmission electron microscopy indicated that the morphology of the as-prepared Bi2Fe4O9 crystallites with PEG 400 were plake-like and rod-like. Strong absorption in visible-light region of the products was characterized by UV-vis diffuse reflectance spectrum (UV-DRS). The photocatalytic activity of Bi2Fe4O9 crystallites was evaluated on degradation of methyl orange (MO) under visible light irradiation. For 3 h irradiation, the degradation ratio was increased to 93% with the aid of a small amount of H2O2. The analysis of FT-IR spectra proved that the Bi2Fe4O9 catalysts were remained stable after the photocalytic reactions.

Keywords

crystallinehydrothermalx-ray diffraction (XRD)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1292: Symposium K – Oxide Nanoelectronics , 2011 , mrsf10-1292-k08-01
Copyright
Copyright © Materials Research Society 2011

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