Graphene nanohybrids for enhanced catalytic activity and large surface area

Nanohybrids containing graphene and bismuth ferrite have been actively employed as efficient photo-catalysts these days owing to the low rate of charge carrier's (e−–h+) recombination, moderate surface area with a suitable range of band-gaps. We have synthesized nanohybrids of graphene oxide (G...

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Bibliographic Details
Published in:MRS communications 2019-03, Vol.9 (1), p.27-36
Main Authors: Fatima, Sabeen, Ali, S. Irfan, Younas, Daniyal, Islam, Amjad, Akinwande, Deji, Rizwan, Syed
Format: Article
Language:English
Subjects:
Biomaterials
Characterization and Evaluation of Materials
Materials Engineering
Materials Science
Nanotechnology
Polymer Sciences
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Summary:Nanohybrids containing graphene and bismuth ferrite have been actively employed as efficient photo-catalysts these days owing to the low rate of charge carrier's (e−–h+) recombination, moderate surface area with a suitable range of band-gaps. We have synthesized nanohybrids of graphene oxide (GO) and doped BiFeO3 using a co-precipitation method and the doping elements were lanthanum and manganese, hence called BLFMO/GO nanohybrids. The surface area of BLFMO [La = 15% increased from 6.8 m2/g (for pure) to 62.68 m2/g (in nanohybrid)]. Also, the bandgap of the BLFMO/GO nanohybrid reduced significantly up to 1.75 eV. The resulting BLFMO/GO nanohybrid represents significantly higher catalytic activity (96% in 30 min) than the pure BiFeO3 (30% in 30 min).
ISSN:2159-6859
2159-6867
DOI:10.1557/mrc.2018.194