Graphene nanohybrids for enhanced catalytic activity and large surfacearea

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

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Published in:MRS communications 2019-03, Vol.9 (1), p.27-36
Main Authors: Sabeen Fatima, Ali, S Irfan, Younas, Daniyal, Islam, Amjad, Akinwande, Deji, Syed Rizwan
Format: Article
Language:English
Subjects:
Bismuth ferrite
Carrier recombination
Catalysis
Catalytic activity
Current carriers
Energy gap
Graphene
Manganese
Surface area
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container_start_page 27
container_title MRS communications
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creator Sabeen Fatima
Ali, S Irfan
Younas, Daniyal
Islam, Amjad
Akinwande, Deji
Syed Rizwan
description Nanohybrids containing graphene and bismuth ferrite have been actively employed asefficient photo-catalysts these days owing to the low rate of charge carrier's(e−–h+) recombination, moderate surface area with a suitable rangeof band-gaps. We have synthesized nanohybrids of graphene oxide (GO) and dopedBiFeO3 using a co-precipitation method and the doping elements were lanthanumand 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. Theresulting BLFMO/GO nanohybrid represents significantly higher catalytic activity (96% in30 min) than the pure BiFeO3 (30% in 30 min).
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subjects Bismuth ferrite
Carrier recombination
Catalysis
Catalytic activity
Current carriers
Energy gap
Graphene
Manganese
Surface area
title Graphene nanohybrids for enhanced catalytic activity and large surfacearea
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