Environmental Engineering Reference
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Fig. 10 a SEM image of the cross-section of Co-Pi oxygen evolution catalyst (OEC) modified
WO
3
film. b The comparison of photocurrent density versus time of WO
3
and OEC modified
WO
3
film. Reproduced with permission from [
78
]
Fig. 11 a Schematic illustration of the TiSi
2
/Fe
2
O
3
core shell nanonet structure and
corresponded TEM studies. b Linear sweep voltammograms of planar hematite film and TiSi
2
/
Fe
2
O
3
nanonet film collected in 1.0 M NaOH solution, under 100 mW/cm
2
AM 1.5G simulated
solar light. c The comparison of the external quantum efficiency (IPCE) with/without TiSi
2
nanonet structure. Reproduced with permission from [
46
]
film offers short hole diffusion distance to minimize electron-hole recombination
loss. Figure
11
shows the PEC performance of a-Fe
2
O
3
-TiSi
2
core shell nanonets
and a-Fe
2
O
3
planar structure. The photocurrent density of a-Fe
2
O
3
-TiSi
2
nanonets
is three times larger than that of planar a-Fe
2
O
3
and the IPCE spectra is almost the
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