Supporting Information for:
The Origin of the Visible-Light-Response of
Nickel(II) Oxide Cluster-Surface Modified
Titanium(IV) Dioxide
Anna, Iwaszuk,a* Michael Nolan,a Qiliang Jin,b Musashi Fujishima,b Hiroaki Tadab*
a
b
Tyndall National Institute, Lee Maltings, University College Cork, Cork, Ireland
Department of Applied Chemistry, School of Science and Engineering, Kinki University,
3-4-1, Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
Table S1. Photocatalytic activities of metal oxide-surface modified P-25 (Degussa) for the
2-naphthol degradation
-1
Surface modifier
.
k UV /h (at optimum loading
-2 a)
amount/ions nm )
1.8 ± 0.23
-1
k vis /h (at optimum loading
-2 b)
amount/ions nm )
0.09 ± 0.015
none
P-25
SnO2
P-25
1.9 (0.025)
0.08 (0.032)
FeOx
P-25
6.9 ± 0.8 (0.54)
0.69 ± 0.02 ( 0.49)
NiO
P-25
5.0 ± 1.0 (0.47)
1.3 ± 0.1 (0.32)
a) Pseudo first-order rate constant for the 2-naphthol oxidation under UV-light irradiation (330 <  < 400 nm,
I320-400 nm = 0.5 mW cm-2),
b) Pseudo first-order rate constant for the 2-naphthol oxidation under visible-light irradiation ( > 400 nm, I420-485
nm
= 1.0 mW cm-2).
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Figure S2: Ni 3d and O 2p projected electronic density of states (PEDOS) for NiO
nanocluster modified anatase TiO2 (001) and rutile TiO2 (110). (a) NiO-Anatase, (b)
Ni2O2-Anatase, (c) Ni3O3-Anatase, (d) Ni4O4-Anatase (e) NiO-Rutile, (f) Ni2O2-Rutile,
(g) Ni3O3-Rutile, (h) Ni4O4-Rutile
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Figure S3: Ti 3d projected electronic density of states (PEDOS) for (a) rutile (110) and
(b) anatase (001) surfaces of TiO2.
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