Bismuth ferrites powders have been successfully synthesized via a facile hydrothermal method. Phase structure, morphology and surface area of as-prepared powders are investigated by using X-ray diffraction, field emission scanning electron microscope and Brunauer–Emmett–Teller (BET) method. The effects of the Bi3+/Fe3+ precursor molar ratio and the reaction time on the phase structure evolution of bismuth ferrite are systematically studied. Three types of bismuth ferrite powders, that is, sheet-like Bi2Fe4O9, sheet-like Bi2Fe4O9 hybrid with Bi25FeO40 and BiFeO3, and cuboid-like Bi2Fe4O9 with large exposed (001) surface, are obtained by tailoring the Bi3+/Fe3+ precursor molar ratio from 1.5:1 to 1:2 and the reaction time from 4 to 12 h during hydrothermal process. A reasonable mechanism for phase structure evolution is proposed and discussed on the basis of our results. Furthermore, the optical properties and photocatalytic activities of those samples are also investigated. All these powders have small bandgap energy and the bandgap reduces with the increasing size. The differences in photocatalytic activities by the degradation of Rhodamine B are well explained from phase structure and morphology. Our studies indicate that a facile hydrothermal method can be well made use of to design and synthesize bismuth ferrite powders with controllable phase structure, morphology and photocatalytic behaviors.
Journal of Materials Science: Materials in Electronics – Springer Journals
Published: Dec 23, 2017
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera