Journal
RSC ADVANCES
Volume 5, Issue 37, Pages 29159-29166Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra02934a
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Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [2013R1A1A2A10004468]
- National Research Foundation of Korea [2013R1A1A2A10004468] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Highly ordered gamma-Fe2O3/reduced graphene oxide (RGO) was synthesized via a facile solution technique combined with calcination at various temperatures. The maghemite iron oxide structure was obtained on the GO surface and improved crystallinity of gamma-Fe2O3 was observed as the calcination temperature increased. The prepared highly ordered maghemite structure on RGO exhibited an excellent water splitting performance under UV light (similar to 360 nm) illumination. The photocurrent density of RGO/gamma-Fe2O3 calcined at 500 degrees C was 6.74 mA cm(-2) vs. RHE and a high incident photon to current conversion efficiency (IPCE) of 4.7%, was achieved. This photocurrent density and the IPCE values are 3.7 times and 4 times higher than that of pristine iron oxide, respectively.
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