Graphene-assisted enhancement of photocatalytic activity of bismuth ferrite nanoparticles

Graphene-assisted enhancement of photocatalytic activity of bismuth ferrite nanoparticles Bismuth ferrite (Bi2Fe4O9) nanoparticles were synthesized via a polyacrylamide gel route. Bi2Fe4O9–graphene nanocomposites were fabricated by mixing Bi2Fe4O9 nanoparticles and graphene into absolute ethanol solution followed by thermal drying. Transmission electron microscope observation reveals that Bi2Fe4O9 nanoparticles are well assembled onto graphene sheets. The photocatalytic activity of the prepared samples was evaluated by the degradation of methyl orange under simulated sunlight irradiation, revealing that Bi2Fe4O9–graphene nanocomposites exhibit an enhanced photocatalytic activity compared to bare Bi2Fe4O9 nanoparticles. This can be explained by the fact that the photogenerated electrons are captured by graphene, leading to an increased availability of h + for the photocatalytic reaction. In addition, it is found that hydroxyl (·OH) radicals, detected by the photoluminescence technique using coumarin as a probe molecule, are produced on the irradiated Bi2Fe4O9 and Bi2Fe4O9–graphene nanocomposite; especially, an enhanced yield is observed for the latter. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Graphene-assisted enhancement of photocatalytic activity of bismuth ferrite nanoparticles

Loading next page...
 
/lp/springer_journal/graphene-assisted-enhancement-of-photocatalytic-activity-of-bismuth-Aaz0koxTsL
Publisher
Springer Journals
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1204-2
Publisher site
See Article on Publisher Site

Abstract

Bismuth ferrite (Bi2Fe4O9) nanoparticles were synthesized via a polyacrylamide gel route. Bi2Fe4O9–graphene nanocomposites were fabricated by mixing Bi2Fe4O9 nanoparticles and graphene into absolute ethanol solution followed by thermal drying. Transmission electron microscope observation reveals that Bi2Fe4O9 nanoparticles are well assembled onto graphene sheets. The photocatalytic activity of the prepared samples was evaluated by the degradation of methyl orange under simulated sunlight irradiation, revealing that Bi2Fe4O9–graphene nanocomposites exhibit an enhanced photocatalytic activity compared to bare Bi2Fe4O9 nanoparticles. This can be explained by the fact that the photogenerated electrons are captured by graphene, leading to an increased availability of h + for the photocatalytic reaction. In addition, it is found that hydroxyl (·OH) radicals, detected by the photoluminescence technique using coumarin as a probe molecule, are produced on the irradiated Bi2Fe4O9 and Bi2Fe4O9–graphene nanocomposite; especially, an enhanced yield is observed for the latter.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Apr 25, 2013

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

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

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

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.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off