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Electronic Supplementary Information
High efficient photocatalytic hydrogen evolution of
graphene/YInO3 nanocomposites under visible light irradiation
Jianjun Dinga,b, Wenhao Yana,b, Wei Xiea,b, Song Suna,b, Jun Baoa,b
and Chen Gaoa,b*
aNational Synchrotron Radiation Laboratory and Collaborative
Innovation Center of Chemistry for Energy Materials, University of
Science and
Technology of China, Hefei, Anhui 230029, China. Fax:
+86(551)6514-1078; Tel: +86(551)63602031; E-mail:
[email protected]
bCAS Key Laboratory of Materials for Energy Conversion,
Department of Materials Science and Engineering, University of
Science and Technology of China, Hefei,
Anhui 230026, China
Electronic Supplementary Material (ESI) for NanoscaleThis
journal is © The Royal Society of Chemistry 2014
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Fig. S1 XRD patterns of G/YIO nanocomposites with different
graphene contents.
Fig. S2 The TEM image of YIO with different magnifications and
the diameter
distributions of YIO nanoparticles.
Electronic Supplementary Material (ESI) for NanoscaleThis
journal is © The Royal Society of Chemistry 2014
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Fig. S3 The TEM image of YIO with different magnifications and
the diameter
distributions of YIO nanoparticles.
From Fig. S2† and S3†, it can be seen that YIO exhibits a fine
rod or spherical
shape and the particles linked end-to-end to form a net
structure with a large degree of
porosity. Because of overlap inside the net structure, we
calculated the diameter
distributions from the particles with clear boundary. The mean
diameter was about
100 nm.
Electronic Supplementary Material (ESI) for NanoscaleThis
journal is © The Royal Society of Chemistry 2014
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Fig. S4 The TEM images of Pt0.5/YIO composite.
Fig. S5 FTIR spectra of GO, graphene, YIO and G0.5/YIO
nanocomposite with
different magnifications.
Table S1 BET surface areas of G/YIO nanocomposites. Unit: m2
g-1.
Samples G0/YIO G0.1/YIO G0.3/YIO G0.5/YIO G0.7/YIO G1/YIO
G2/YIO
SBET 7.64 8.58 10.17 13.26 13.88 17.13 19.29
Electronic Supplementary Material (ESI) for NanoscaleThis
journal is © The Royal Society of Chemistry 2014
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Fig. S6 Photocatalytic activities of Pt-dispersed YIO
nanoparticles as a function of Pt
amount.
The influence of the amount of Pt loading on photocatalytic
activity of Pt/YIO
composites is shown in Fig. S3. In the absence of Pt, the
photocatalytic activity was
negligible for pure YIO. The addition of Pt significantly
promoted the H2 evolution.
The activity increased with increasing the Pt loading and
reached the maximum at Pt
loading of 0.5 wt%. Further increase resulted an obvious
activity fall.
Electronic Supplementary Material (ESI) for NanoscaleThis
journal is © The Royal Society of Chemistry 2014
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Fig. S7 XRD pattern of G0.5/YIO nanocomposite after
photocatalytic
reaction for 40 h.
Fig. S8 XPS spectra of Y 3d, In 3d and C 1s for G0.5/YIO
nanocomposite after
photocatalytic reaction for 40 h.
Electronic Supplementary Material (ESI) for NanoscaleThis
journal is © The Royal Society of Chemistry 2014
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