1. Food

Electronic Supplementary Material (ESI) for New Journal of Chemistry.
This journal is © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2015
Electronic Supplementary Information
Visible
light-induced
enhanced
photoelectrochemical
and
photocatalytic studies of gold decorated SnO2 nanostructure
Mohammad Mansoob Khan1¥, Sajid Ali Ansari1, Mohammad Ehtisham Khan1, Mohd Omaish Ansari1,
Bong-Ki Min2 and Moo Hwan Cho1*
1School
of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South
Korea.
2Center
for Research Facilities, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South
Korea.
UV-vis diffuse reflectance spectra of Au-SnO2 nanocomposites and P-SnO2
100
P-SnO2
Au-SnO2
90
Reflectance (%R)
80
70
60
50
40
30
20
10
0
200
300
400
500
600
Wavelength (nm)
700
800
Fig. S1. UV-vis diffuse reflectance spectra of P-SnO2 and Au-SnO2 nanocomposite.
1
XRD patterns of the Au-SnO2 nanocomposite and P-SnO2
(220)
50
60
(311)

70
80
70
(321)
(310)
(112)
(301)
(002)
40
50
60
2 Theta (degree)
(202)
P-SnO2
(220)
(200)
30


(211)
40
(101)
30
(200)
1000
500
250020
2000
1500
1000
500
0
20
Au-SnO2
* Planes of gold
(111)

1500
(110)
Intensity
Intensity
2000
80
Fig. S2. XRD patterns of the Au-SnO2 nanocomposite and P-SnO2. The peaks marked with (*)
represents the Au signals.
Final output of Rietveld refinement indices for Au-SnO2 nanocomposite and P-SnO2
(a)
(b)
Fig. S3. Rietveld refinement indices for (a) Au-SnO2 nanocomposite and (b) P-SnO2.
2
TEM image of P-SnO2 nanoparticles
Fig. S4. TEM image of P-SnO2 nanoparticles.
Acquired HAADF of Au-SnO2 nanocomposite
Fig. S5. Representative HAADF FE-TEM image of Au-SnO2 nanocomposite.
EDX of Au-SnO2 nanocomposite
Fig. S6. EDX of Au-SnO2 nanocomposite.
3
XPS spectra of P-SnO2 and Au-SnO2 nanocomposite
P-SnO2
Au-SnO2
Intensity (a.u.)
C 1s
294
292
290
288
286
284
282
Binding Energy (eV)
280
278
Fig. S7. XPS spectra of P-SnO2 and Au-SnO2 nanocomposite for C 1s peak.
Stability of the Au-SnO2 nanocomposite
Absorbance (a.u.)
Au-SnO2
300
No absorption
400
500
600
nm
700
800
Fig. S8. Stability test of the Au-SnO2 nanocomposite.
4