Open AccessReactable ionic liquid‐assisted solvothermal synthesis of flower‐like bismuth oxybromide microspheres with highly visible‐light photocatalytic performances
Author(s) -
He Minqiang,
Sun Kaiyong,
Xia Jiexiang,
Li Huaming,
Xu Li,
Di Jun,
Xu Hui,
Shu Huoming
Publication year - 2013
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2013.0263
Subject(s) - photocatalysis , ionic liquid , rhodamine b , materials science , scanning electron microscope , bismuth , chemical engineering , bromide , solvothermal synthesis , polyethylene glycol , visible spectrum , spectroscopy , diffuse reflectance infrared fourier transform , nuclear chemistry , microsphere , nanotechnology , organic chemistry , chemistry , catalysis , composite material , optoelectronics , quantum mechanics , engineering , metallurgy , physics
Bismuth oxybromide (BiOBr) flower‐like microspheres have been successfully synthesised via a polyethylene glycol 600‐assisted solvothermal process in the presence of reactable ionic liquid (IL) 1‐hexadecyl‐3‐methylimidazolium bromide. The morphology and compositional characteristics of BiOBr were investigated by X‐ray diffraction, scanning electron microscopy, energy‐dispersive X‐ray spectroscopy and diffuse reectance spectroscopy. During the reactive process, IL not only acted as a Br source but also as a template for fabrication of BiOBr flower‐like microspheres. Photocatalytic activities of flower‐like microspheres were evaluated by degradation of rhodamine B under visible‐light irradiation. Compared with the BiOBr nanoplates, BiOBr hollow microspheres and TiO 2 (Degussa, P25), BiOBr flower‐like microspheres exhibited excellent performance in visible‐light‐driven photocatalysis.